SkatterBencher #39: AMD Ryzen 7 5800X3D Overclocked to 4741 MHz

skatterbencher 5800x3d

We overclock the AMD Ryzen 7 5800X3D up to 4741 MHz with the ROG Crosshair VIII Extreme motherboard and EK-Quantum liquid cooling.

https://www.youtube.com/watch?v=kUyPTBVNXF0

AMD Ryzen 7 5800X3D: Introduction

The AMD Ryzen 7 5800X3D processor is part of the Ryzen 5000 Zen 3 desktop product line-up.

The original 4 Zen 3 desktop CPUs launched at the end of 2020. Since then, the product line has expanded to 10 SKUs ranging from the 6-core Ryzen 5 5500 to the Ryzen 9 5950X. The Ryzen 7 5800X3D is the odd one out in the bunch as it’s the only processor that features the 3D V-Cache technology.

I won’t cover the ins and outs of 3D V-Cache in this video, as plenty of other media and channels already did a much better job than I would do. The long story short is that AMD put an additional L3 cache on top of the single CCD on the 5800X3D package. That effectively triples the on-package L3 cache from 32MB to 96MB and is supposed to offer improved gaming performance.

The Ryzen 7 5800X3D is the only consumer processor with 3D V-Cache technology. The CPU has eight cores with 16 threads, a base frequency of 3.4 GHz, and a maximum listed boost frequency of 4.5GHz. In comparison, the Ryzen 7 5800X also has eight cores with 16 threads but has a base frequency of 3.8 GHz and a maximum boost frequency of 4.7 GHz. The TDP for both chips is 105W, and the TjMax is 90 degrees Celsius.

amd 5800x3d

A slight difference between the 5800X and the 5800X3D is that the latter is the B2 stepping. We already talked about this minor difference in SkatterBencher #29, where we overclocked a Ryzen 9 5900 B2. While there’s been a lot of speculation about the difference between B0 and B2 stepping, the only significant difference is readiness for 3D V-Cache.

In this video, we will cover two overclocking strategies:

  • First, increase the FCLK and DRAM Frequency
  • Second, we overclock using Reference Clock and Voltage Suspension
5800x3d overclocking strategies

However, before we jump into overclocking, let us quickly go over the hardware and benchmarks we use in this video.

AMD Ryzen 7 5800X3D: Platform Overview

Along with the AMD Ryzen 7 5800X3D processor and ASUS ROG Crosshair VIII Extreme motherboard, in this guide, we will be using a pair of G.SKILL Trident Z DDR4-4266 memory sticks, an ASUS ROG STRIX RTX 2080TI graphics card, an 512GB M.2 NVMe SSD, a Seasonic Prime 850W Platinum power supply, the ElmorLabs Easy Fan Controller, the ElmorLabs Power Measurement Device, the ElmorLabs EVC2SX, the EK-Quantum Magnitude water block, and EK-Quantum water cooling. All this is mounted on top of our favorite Open Benchtable V2. 

The cost of the components should be around $4,200.

  • AMD Ryzen 9 5800X3D processor: $450
  • EK-Quantum Magnitude: $285
  • EK-Quantum P360 water cooling kit: $580
  • ASUS ROG Crosshair VIII Extreme motherboard: $800
  • ASUS ROG Strix RTX 2080 TI graphics card: $1,300
  • G.SKILL Trident Z DDR4-4266 memory: $200
  • AORUS RGB 512 GB M.2-2280 NVME: $90
  • Seasonic Prime 850W Platinum power supply: $200
  • ElmorLabs Easy Fan Controller: $20
  • ElmorLabs EVC2SX: $32
  • ElmorLabs Power Measurement Device: $45
  • Open Benchtable V2: $200
5800x3d system cost

ElmorLabs EFC, EVC2, & PMD

I explained how I use ElmorLabs products in SkatterBencher #34. By connecting the EFC and PMD to the EVC2 device, I monitor the ambient temperature (EFC), water temperature (EFC), fan duty cycle (EFC), and CPU input power (PMD). I include the measurements in my Prime95 stability test results.

elmorlabs evc2 pmd efc use

I also use the ElmorLabs EFC to map the radiator fan curve to the water temperature. Without going into too many details: I have attached an external temperature sensor from the water in the loop to the EFC. Then, I use the low/high setting to map the fan curve from 25 to 40 degrees water temperature. I use this configuration for all overclocking strategies.

AMD Ryzen 7 5800X3D: Benchmark Software

We use Windows 11 and the following benchmark applications to measure performance and ensure system stability.

5800x3d benchmarks

AMD Ryzen 7 5800X3D: Stock Performance

Before starting any overclocking, we must first check the system performance at default settings.

It’s important to note that while the Ryzen 7 5800X3D does not support overclocking in any form – whether it’s manual overclocking or Precision Boost Overdrive – the Precision Boost 2 algorithm is still present. The standard parameters of the Precision Boost algorithm are as follows:

  • PPT: 142W
  • TDC: 95A
  • EDC: 140A
  • THM: 90C
  • VID: 1.3V
  • FMAX: 4550

These values are very similar to the typical values of any Ryzen 5000 series CPU, except for VID. On other Ryzen 5000 CPUs, the maximum allowed VID is 1.5V, but the 5800X3D is limited to only 1.3V. According to AMD, that’s to protect the 3D V-Cache as it’s more sensitive to voltage.

Here is the benchmark performance at stock:

  • SuperPI 4M: 36.585 seconds
  • Geekbench 5 (single): 1,606 points
  • Geekbench 5 (multi): 10,023 points
  • Cinebench R23 Single: 1,484 points
  • Cinebench R23 Multi: 14,739 points
  • CPU-Z V17.01.64 Single: 627.0 points
  • CPU-Z V17.01.64 Multi: 6,433.7 points
  • V-Ray 5: 11,256 vsamples
  • AI Benchmark: 3,196 points
  • 3DMark Night Raid: 64,209 points
  • CS:GO FPS Bench: 617,88 fps
  • Final Fantasy XV: 187.44 fps
5800x3d stock benchmark performance

Here are the 3DMark CPU Profile scores at stock

  • CPU Profile 1 Thread: 903
  • CPU Profile 2 Threads: 1,794
  • CPU Profile 4 Threads: 3,435
  • CPU Profile 8 Threads: 6,385
  • CPU Profile 16 Threads: 7,444
  • CPU Profile Max Threads: 7,454
5800x3d stock 3dmark cpu profile performance

When running Prime 95 Small FFTs with AVX enabled, the average CPU effective clock is 4054 MHz with 1.184 volts. The average CPU temperature is 90.3 degrees Celsius. The ambient and water temperature is 22.3 and 30 degrees Celsius. The average CPU package power is 115.8 watts.

5800x3d stock prime95 avx

When running Prime 95 Small FFTs with AVX disabled, the average CPU effective clock is 4190 MHz with 1.221 volts. The average CPU temperature is 83.9 degrees Celsius. The ambient and water temperature is 22.2 and 30 degrees Celsius. The average CPU package power is 114.8 watts.

5800x3d stock prime95 no avx

Now, let us try our first overclocking strategy.

However, before we get going, make sure to locate any of the following three buttons: Safe Boot button, ReTry button, and CMOS Clear button

The Safe Boot button temporarily applies safe settings to the BIOS while retaining the overclocked settings, allowing you to modify the settings which caused a boot failure. The ReTry button forces the system to reboot if it locks up during the boot process, and the Reset button is rendered useless. It will not change anything to your BIOS settings.

You can find both Safe Boot and ReTry buttons at the bottom right of your motherboard.

Pressing the Clear CMOS button will reset all your BIOS settings to default which is helpful if you want to start your BIOS configuration from scratch. However, it does not delete any of the BIOS profiles previously saved. The Clear CMOS button is located on the rear I/O panel.

OC Strategy #1: FCLK + DOCP

In our first overclocking strategy, we take advantage of ASUS DOCP and Infinity Fabric overclocking.

D.O.C.P – Direct OverClock Profile

D.O.C.P. stands for Direct OverClock Profile and is an ASUS technology that aims to replicate the Intel XMP feature we know from Intel platforms. XMP allows memory vendors such as G.SKILL to program higher performance settings onto the memory sticks. If the motherboard supports XMP, you can enable higher performance with a single BIOS setting. So, it saves you lots of manual configuration.

Fabric Frequency

The fabric connects the CPU cores with the on-package I/O die, which houses the memory controllers. When the CPU cores want to store or retrieve data from the system memory, it does this via the Infinity Fabric and the memory controllers in the on-package IOD chip. By default, the memory, fabric, and memory controllers are running in synchronous mode. That means they all operate at the same frequency. When overclocking the system memory, you can use synchronous or asynchronous modes.

Synchronous mode is relatively taxing for the CPU, so on most Ryzen CPUs, the system will automatically enable “Asynchronous mode” beyond a certain memory frequency.

In asynchronous mode, the memory controller will operate at half the system memory frequency, and the fabric clock will also run below the system memory frequency. That will result in a performance penalty. The penalty size is application-specific as sufficiently high memory frequency may overcome the performance penalty from running asynchronous mode.

While our memory kit is rated at DDR4-4266, I will run it at DDR4-3800 with the fabric clock and memory controller in synchronous mode. I was able to increase the fabric clock to 2133 MHz, but there are WHEA errors when stress-testing if the frequency is over 1900 MHz.

Upon entering the BIOS

  • Go to the Extreme Tweaker menu
  • Set Ai Overclock Tuner to D.O.C.P. Standard
  • Set Memory Frequency to DDR4-3800MHz
  • Set FCLK Frequency to 1900MHz

Then save and exit the BIOS.

We re-ran the benchmarks and checked the performance increase compared to the default operation.

  • SuperPI 4M: +0.18%
  • Geekbench 5 (single): +2.37%
  • Geekbench 5 (multi): +6.36%
  • Cinebench R23 Single: +0.47%
  • Cinebench R23 Multi: +0.47%
  • CPU-Z V17.01.64 Single: +0.46%
  • CPU-Z V17.01.64 Multi: +0.47%
  • V-Ray 5: +0.37%
  • AI Benchmark: +8.89%
  • 3DMark Night Raid: +0.97%
  • CS:GO FPS Bench: +0.61%
  • Final Fantasy XV: +0.28%
5800x3d fabric memory overclock benchmark performance

Here are the 3DMark CPU Profile scores at stock

  • CPU Profile 1 Thread: +0.55%
  • CPU Profile 2 Threads: +0.45%
  • CPU Profile 4 Threads: +0.03%
  • CPU Profile 8 Threads: +0.02%
  • CPU Profile 16 Threads: +0.54%
  • CPU Profile Max Threads: +0.31%
5800x3d fabric memory overclock 3dmark cpu profile performance

We see only performance improvements in specific memory-sensitive benchmarks but little to no improvements otherwise. The maximum performance improvement is +8.89% in AI Benchmark.

When running Prime 95 Small FFTs with AVX enabled, the average CPU effective clock is 4035 MHz with 1.181 volts. The average CPU temperature is 90.3 degrees Celsius. The ambient and water temperature is 22.5 and 31 degrees Celsius. The average CPU package power is 129.1 watts.

5800x3d fabric memory overclock prime95 avx

When running Prime 95 Small FFTs with AVX disabled, the average CPU effective clock is 4247 MHz with 1.232 volts. The average CPU temperature is 87.5 degrees Celsius. The ambient and water temperature is 22.5 and 30.4 degrees Celsius. The average CPU package power is 118.8 watts.

5800x3d fabric memory overclock prime95 no avx

OC Strategy #2: Reference Clock + Voltage Suspension

In our second overclocking strategy, we will use reference clock overclocking and Voltage Suspension to try to overclock the 5800X3D. In SkatterBencher #29, I referred to this approach as “Shaminocharging” Precision Boost Overdrive, but since we don’t have access to PBO, I suppose we’re Shaminocharging Precision Boost.

But first, let’s have a closer look at the challenges we’re facing with this Ryzen 7 5800X3D. We can distinguish a couple of factors holding back the performance of our system:

  1. Frequency: if we were able to increase the operating frequency with PBO tools like Fmax override and Curve Optimizer, we’d get higher operating frequencies
  2. Temperature: As we can see from the Prime 95 results, we reach TjMax at 90 degrees Celsius even when using custom loop water cooling.
  3. Voltage: As I highlighted earlier, the maximum allowed voltage is only 1.3V. That will limit our overclocking potential
  4. Effective Clock:We can also see from our Prime 95 results that the CPU effective clock is noticeably lower than the CPU core clock. Finding a way to increase the effective clock to match the Core clock will also help performance
5800x3d overclocking performance bottlenecks

We will address the first challenge with reference clock overclocking and the other three challenges with Voltage Suspension. But first, let’s have a quick refresher on how Precision Boost 2 technology works.

Precision Boost 2

Every CPU core inside your Ryzen 7 5800X3D processor has a factory-fused voltage-frequency curve. The voltage frequency curve, or V/f curve, is a line that describes the relationship between the operating frequency and the voltage required to run stably at that frequency.

AMD Precision Boost 2 technology uses this V/f curve information to dynamically increase the CPU operating frequency beyond the base clock frequency. The boosting algorithm first determines the maximum allowed voltage for a given set of input parameters. The inputs include power, current, and temperature, but also quantity of active cores, the core quality, etc. Once the algorithm has determined the maximum allowed voltage, it applies the associated frequency based on the V/f curve.

While there’s no detailed information available on how the algorithm works precisely, what we do know is that generally speaking, if there’s more thermal, current, and power headroom, your CPU will boost to higher frequencies. The Precision Boost algorithm manages the frequency boosting with parameters such as PPT, TDC, EDC, FIT, VID, and Fmax.

Reference Clock Overclocking

The Ryzen 7 5800X3D has two chips on package: one CCD and one IO die.

CCD stands for Core Chiplet Die and is just a die on a Ryzen CPU with CPU cores. The Zen 3 CPU cores are packed together in a CCX, or Core Complex. A Zen 3 CCX consists of eight individual cores, each with its L1 and L2 cache and a shared 16MB of L3 cache. The 5800X3D is a unique product as AMD has put an additional layer of L3 cache on top of the CCD.

A 100 MHz reference clock input drives the frequency of the CPU cores. Each CCX has its own PLL and thus can run an independent frequency. The cores within a CCX share the same PLL, so they’ll run at the same frequency. The additional L3 cache also runs at the same frequency as the CPU cores.

The reference clock frequency is the reference clock for many parts in your system, including the CPU cores, the fabric, memory controllers, the system memory, PCIe, SATA, etc. When increasing the reference clock frequency, you change all the frequencies associated with the reference clock. While this can result in additional performance, it can also cause instability so be careful.

5800x3d clocking topology

Particularly relevant for this platform is that I must use an M.2 drive connected to the CPU PCIe lanes to use over 101 MHz reference clock frequency as my SATA drives are no longer showing up. Beyond 104.2 MHz reference clock, even the M.2 drive no longer shows up, and I have to switch to an add-in SATA controller with its independent clock generation circuit.

As the Precision Boost algorithm is reference clock unaware, we can use this reference frequency to push the core frequency higher than what the algorithm wants to set. For example, let’s say the algorithm finds sufficient voltage headroom for 1.3V, and that voltage is associated with the 45X ratio. Using a base clock frequency of 101 MHz instead of the default 100 MHz, the actual frequency at our 1.3V voltage point will be 4500 x 1.01 = 4545 MHz.

I use a reference clock frequency of 104.2 MHz in this specific case. Combined with the AMD default maximum boost frequency of 4550 MHz, this results in a new maximum boost frequency of 4741 MHz. While that should offer a nice boost in performance, this won’t be stable without tuning the operating voltage.

5800x3d precision boost refclock example

Voltage Tuning

The VDDCR_CPU voltage rail provides the voltage to the Vermeer Zen 3 cores. This voltage rail is shared across the entire CCD, so each CPU core and the L3 cache will be provided with the same voltage.

An external voltage controller powers the VDDCR_CPU voltage rail. There are two ways to configure the CPU core voltage: managed by the Precision Boost algorithm or manual input. As we’re trying to overclock using Precision Boost, let’s just focus on that one.

5800x3d voltage topology

When the Precision Boost algorithm determines the optimal voltage for a given situation, it will request the voltage controller on the motherboard to provide that voltage. It does this with a VID request. The voltage controller takes that VID request, offsets this value with any configured voltage offset, then outputs this voltage back to the CPU. The actual CPU core voltage is still subject to any impact from the VRM loadline.

precision boost voltage vid

When we’re overclocking our Ryzen CPU using the reference clock, with Precision Boost enabled, we’re making the CPU run at a higher frequency for a given voltage. Without voltage adjustments, that won’t be stable.

One available approach on most, if not all, AM4 motherboards is using a static voltage offset. The voltage offset applies across the entire V/F curve. We can improve stability at the highest frequency range by adding a voltage offset. But keep in mind that adding an offset to the whole V/f curve also means getting higher voltage at lower frequencies. So, in heavy multi-threaded workloads, you’ll run out of thermal headroom faster than without the voltage offset.

While a static voltage offset probably works for seeing the maximum frequencies, we need a voltage offset that dynamically changes based on the system conditions for a daily driver. That’s where Voltage Suspension comes in!

Voltage Suspension

Voltage Suspension is a feature first introduced on the ROG Crosshair VIII Extreme motherboard and is now also available on select ROG Z690 motherboards. I covered the feature extensively in SkatterBencher #29, so check out that video if you’re interested in more detailed information. For this video, I will try to keep it short.

In essence, the purpose of Voltage Suspension is to force the Core Voltage to stay within a specific range even when using a dynamic voltage like with Precision Boost Overdrive.

There’s a unique hardware circuitry on the motherboard PCB to achieve that. Essentially the circuitry has two main functions: one function to monitor the CPU VID voltage request and another function to adjust this request with our custom Voltage Suspension rules.

asus voltage suspension voltage circuit

As a quick reminder, here’s how the voltage is set on your AMD Ryzen CPU when Precision Boost is enabled.

  • First, the algorithm evaluates the current CPU conditions and determines the optimal voltage.
  • Then, the CPU sends the voltage request using a VID to the voltage controller
  • The voltage controller will take the voltage request and add any positive or negative voltage offset
  • This adjusted voltage is then sent back to the CPU but may be impacted by the VRM loadline.
  • The CPU will also sense the incoming voltage and adjust the VID voltage request if the sensed voltage is significantly lower than the requested voltage.

The Voltage Suspension adjustment happens after the voltage controller adjusts the VID voltage request with the offset.

amd ryzen cpu voltage with voltage suspension

We can configure the Voltage Suspension by setting the voltage ceiling and floor. The former is our maximum voltage, while the latter is our minimum voltage. We can configure it either in static or dynamic mode.

asus voltage suspension bios settings

In Static mode, we set a maximum and minimum voltage, and the Voltage Suspension function will try to keep the voltage between these two levels.

In Dynamic mode, we make our own voltage frequency curve, though we don’t use frequency as a parameter. Instead, we configure the ceiling and floor voltage as the function of four points defined by a voltage and temperature. So, it’s more like a voltage-temperature curve.

asus voltage suspension static vs dynamic mode

I won’t get into the nitty-gritty details of how to configure Voltage Suspension – you check out SkatterBencher #29 to learn about that – but I can explain the purpose of my settings. Here are my Voltage Suspension settings:

  • Floor Low Vmin: 1.1625
  • Floor Hot Temp: 85
  • Floor High Vmin: 1.325
  • Floor Cold Temp: 65
  • Ceiling Low Vmax: 1.20
  • Ceiling Hot Temp: 85
  • Ceiling High Vmax: 1.375
  • Ceiling Cold Temp: 65
5800x3d voltage suspension

When the processor is relatively cold, 65 degrees Celsius or lower, my configuration will force the CPU voltage between 1.325V and 1.375V. That’s slightly higher than the AMD voltage limit of 1.3V and offers stability at the increased maximum boost frequency of 4741 MHz.

5800x3d voltage suspension cold temp

When the processor is relatively hot, 85 degrees Celsius or higher, my configuration will force the CPU voltage between 1.1625V and 1.2V. That’s slightly lower than the 1.18V we see in Prime95 with AVX and 1.23V in Prime 95 without AVX from our previous strategy. Not only does this help us achieve lower operating temperatures under full load, but as a consequence, we also see 150 to 200 MHz higher all-core effective clock frequencies.

5800x3d voltage suspension hot temp

Voltage Offset

A downside of Voltage Suspension is that it’s a reactive mechanism that responds relatively slowly to the changing conditions. While it is excellent at managing the voltage over an extended period, it’s ineffective at controlling the voltage over a short period.

The Precision Boost algorithm updates its target frequency many times per second to ensure the optimal performance is reached at any given time. Especially in rapidly changing conditions, where the CPU goes from full load to idle to single-core load, the Voltage Suspension can be too slow to react.

There are two extreme scenarios we need to keep an eye out for:

  1. First, when the CPU goes from light load to full load. Here, initially, the temperature will be relatively low, and thus Voltage Suspension has the voltage set high. This high voltage may still be initially applied when with cores at full load. The high voltage may cause excess temperature
  2. Second, when the CPU goes from full load to light load. Here, initially, the temperature will be relatively high, and thus Voltage Suspension has the voltage set low. This low voltage may still be initially applied when a single core is in light load. The low voltage may cause instability.
crosshair viii extreme reference clock static voltage offset

We cannot do much to address the first scenario other than letting the Precision Boost algorithm automatically adjust the frequency and VID requests.

For the second scenario, we can add a manual positive Voltage Offset. That will help retain stability in the initial stages of the Precision Boost algorithm boosting to a high frequency. The appropriate voltage offset depends on how much you’ve pushed up the Precision Boost frequency by overclocking the reference clock. In our case, we set a voltage offset of +50mV.

Force OC Mode Disabled & Global C-State

Before going into the BIOS, you need to know a couple of settings when using reference clock overclocking with the Crosshair VIII Extreme.

The motherboard is tuned for both ambient and extreme overclocking and thus has a lot of auto-rules implemented to help with easy overclocking. However, the same auto-rules that help make manual overclocking very easy can sometimes make overclocking with Precision Boost Overdrive trickier.

When using reference clock overclocking, the auto-rules of the BIOS force the CPU into OC mode and thus has the Precision Boost algorithm disabled. So, you’ll end up with a fixed ratio in the Operating System. To avoid this, enable both Core Performance Boost and Force OC Mode disabled.

Also, make sure to enable Global C-State Control. Without it, the effective clock frequency will increase until 101MHZ reference clock but then sharply drop by about 100 MHz. You ensure that the PB frequency keeps scaling with the reference clock by enabling this setting.

crosshair viii extreme reference clock overclock settings

Upon entering the BIOS

  • Go to the Extreme Tweaker menu
  • Set Ai Overclock Tuner to D.O.C.P. Standard
  • Set BCLK Frequency to 104.20
  • Set Memory Frequency to DDR-3681MHz
  • Set FCLK Frequency to 1840MHz
  • Set Core Performance Boost to Enabled
  • Enter the External Digi+ Power Control submenu
    • Set Core Voltage Suspension to Enabled
    • Set Co mitigator to 0.3
    • Set Voltage Floor Mode to Dynamic
    • Set Floor Low VMin to 1.1625
    • Set Floor Hot Temp to 85
    • Set Floor High VMin to 1.325
    • Set Floor Cold Temp to 60
    • Set Voltage Ceiling Mode to Dynamic
    • Set Ceiling Low VMax to 1.20
    • Set Ceiling Hot Temp to 85
    • Set Ceiling High VMax to 1.375
    • Set Ceiling Cold Temp to 65
  • Leave the External Digi+ Power Control submenu
  • Enter the Tweaker’s Paradise submenu
    • Set Force OC Mode Disable to Enabled
  • Leave the Tweaker’s Paradise submenu
  • Set CPU Core Voltage to Offset mode
  • Set offset Mode sign to +
  • Set CPU Core Voltage Offset to 0.05
  • Go to the Advanced menu
  • Enter the AMD CBS submenu
    • Enter the CPU Common Options submenu
      • Set Global C-State Control to Enabled

Then save and exit the BIOS.

We re-ran the benchmarks and checked the performance increase compared to the default operation.

  • SuperPI 4M: +4.60%
  • Geekbench 5 (single): +6.23%
  • Geekbench 5 (multi): +9.38%
  • Cinebench R23 Single: +5.05%
  • Cinebench R23 Multi: +3.39%
  • CPU-Z V17.01.64 Single: +3.56%
  • CPU-Z V17.01.64 Multi: +2.10%
  • V-Ray 5: +4.36%
  • AI Benchmark: +12.92%
  • 3DMark Night Raid: +3.00%
  • CS:GO FPS Bench: +0.31%
  • Final Fantasy XV: +0.59%
5800x3d refclk overclock benchmark performance

Here are the 3DMark CPU Profile scores at stock

  • CPU Profile 1 Thread: +4.76%
  • CPU Profile 2 Threads: +5.02%
  • CPU Profile 4 Threads: +4.31%
  • CPU Profile 8 Threads: +2.77%
  • CPU Profile 16 Threads: +3.33%
  • CPU Profile Max Threads: +3.17%
5800x3d refclk overclock 3dmark cpu profile performance

With a 4.2% increase in reference clock, we see about a 4% performance increase across the board with a peak performance improvement of 12.92% in AI Benchmark. Overall, not too shabby for a CPU that AMD locked for overclocking.

When running Prime 95 Small FFTs with AVX enabled, the average CPU effective clock is 4214 MHz with 1.176 volts. The average CPU temperature is 93.4 degrees Celsius. The ambient and water temperature is 24.4 and 32.2 degrees Celsius. The average CPU package power is 125.6 watts.

5800x3d refclk overclock prime 95 small ffts avx

When running Prime 95 Small FFTs with AVX disabled, the average CPU effective clock is 4359 MHz with 1.208 volts. The average CPU temperature is 86.7 degrees Celsius. The ambient and water temperature is 24.4 and 31.6 degrees Celsius. The average CPU package power is 131.7 watts.

5800x3d refclk overclock prime 95 small ffts no avx

As a side note, even with these elevated values, it doesn’t appear we’re near the PPT, TDC, or EDC limits imposed onto the 5800X3D.

So, in other words: the standard Precision Boost parameters are more than sufficient for this CPU as the primary limiter is operating temperature.

AMD Ryzen 7 5800X3D: Conclusion

Alright, let us wrap this up.

The Ryzen 7 5800X3D is the only locked processor in the Ryzen 5000 product line-up and is an atypical deviation from the general AMD approach to enthusiast products. AMD is concerned with the impact of elevated voltages on the lifespan of the CPU since it’s the first enthusiast-grade product with the 3D V-Cache. That said, I do think they could’ve taken a slightly different approach.

When it comes to Precision Boost Overdrive, we’re already used to the upper limits of specific parameters. For example, TjMax has an upper limit of 90 degrees Celsius, Fmax override has a limit of 200 MHz, and, on regular Ryzen 5000 CPUs, the VID tops out at 1.5V. For the 5800X3D, AMD could’ve just imposed a different hard limit for the VID to 1.3V and left the other settings open for enthusiasts to tune.

Removing support for Precision Boost Overdrive 2 also eliminates the Curve Optimizer function, which AMD advertises as a tool for undervolting. Surely, this would be the tool that makes sense to offer to enthusiasts if your concern is too high voltage?

Regardless, with reference clock overclocking and Voltage Suspension, we still managed to find the maximum stability of this CPU. I was able to increase the reference clock to 106 MHz and see CPU frequencies over 4.8 GHz, but I couldn’t get the system stable across all my benchmarks, even with a voltage of over 1.4V.

5800x3d overclocked to 4.8 ghz

Even with our CPU pushed to the limit, it doesn’t seem to hit any of the usual Precision Boost limits like PPT, TDC, or EDC. The chip is limited by its overclocking capability and the operating temperature, and both are linked to the 3D V-Cache.

Anyway, that’s all for today!

I enjoyed fiddling with the 5800X3D and appreciate how ASUS’ Voltage Suspension feature was particularly useful in setting up an overclock for daily use.

I want to thank my Patreon supporters, Coffeepenbit and Andrew, for supporting my work.

As per usual, if you have any questions or comments, feel free to drop them in the comment section below. 

‘Till the next time!

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21 thoughts on “SkatterBencher #39: AMD Ryzen 7 5800X3D Overclocked to 4741 MHz

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    […] tandaan na ang BCLK overclocking ng 5800X3D processor ay malawakang ipinakita sa ilang malayang pagsubok noong nakaraang linggo, ngunit ito ay hindi direkta o isang inirerekomendang paggamit para sa […]

  2. MSI cho phép ép xung Ryzen 7 5800X3D BCLK cho bo mạch chủ X570 MEG, hiệu suất lõi đơn cao hơn tới 7% - VI Atsit

    […] ép xung BCLK của bộ xử lý 5800X3D đã được chứng minh rộng rãi trong một số thử nghiệm độc lập tuần trước, nhưng nó không đơn giản và không được khuyến nghị sử dụng cho […]

  3. MSI updates X570 motherboards to overclock Ryzen 7 5800X3D - California18

    […] BCLK overclocking (Base Clock). BCLK overclocking on Ryzen 7 5800X3D was tested last week in some independent tests, but despite this it remains a not very simple practice and not recommended on this CPU. Ryzen 7 […]

  4. MSI to enable Ryzen 7 5800X3D BCLK overclocking for X570 MEG motherboards, up to 7% higher single-core performance – VideoCardz.com – KuroTech

    […] be noted that BCLK overclocking of 5800X3D processor has been extensively demonstrated in some independent testing last week, but it is neither straightforward nor a recommended use for this processor. AMD’s […]

  5. MSI To Allow Ryzen 7 5800X3D BCLK Overclocking For X570 MEG Motherboards, As Much As 7% Larger Single-core Efficiency - Frayd US

    […] to be famous that BCLK overclocking of 5800X3D processor has been extensively demonstrated in some impartial testing final week, however it’s neither easy nor a really helpful use for this processor. AMD’s first […]

  6. MSI habilitará el overclocking Ryzen 7 5800X3D BCLK para placas base X570 MEG, hasta un 7 % más de rendimiento de un solo núcleo – Liukin

    […] señalar que el overclocking BCLK del procesador 5800X3D se ha demostrado ampliamente en algunos pruebas independientes la semana pasada, pero no es un uso sencillo ni recomendado para este procesador. La primera CPU de […]

  7. What’s This? Ryzen 7 5800X3D Overclocked To 5.1GHz By MSI But There’s A Catch - 4uAmazon

    […] on some boards. Over at SkatterBencher, they were able to take a Ryzen 7 5800X3D from 4550 MHz to 4741 MHz with the help of an ASUS feature called Voltage Suspension. Still, this isn’t a huge gain, […]

  8. What’s This? Ryzen 7 5800X3D Overclocked To 5.1GHz By MSI But There’s A Catch – Shrewd Buyz

    […] on some boards. Over at SkatterBencher, they were able to take a Ryzen 7 5800X3D from 4550 MHz to 4741 MHz with the help of an ASUS feature called Voltage Suspension. Still, this isn’t a huge gain, […]

  9. What’s This? Ryzen 7 5800X3D Overclocked To five.1GHz By MSI However There’s A Catch - Nolisa

    […] boards. Over at SkatterBencher, they had been in a position to take a Ryzen 7 5800X3D from 4550 MHz to 4741 MHz with the assistance of an ASUS characteristic referred to as Voltage Suspension. Nonetheless, this […]

  10. "Ryzen 7 5800X3D" apžvalgų suvestinė | MiTech.lt

    […] SkatterBencher […]

  11. 外頻107:微星X570超神主板將R7-5800X3D超到4.9GHz – WONGCW 網誌

    […] 需要指出的是,R7-5800X3D 在超頻狀態下的積熱問題還是不容忽視的,此前SkatterBencher已經發表過類似的看法。 […]

  12. 外频107:微星X570超神主板将R7-5800X3D超到4.9GHz - News | 新闻

    […] 需要指出的是,R7-5800X3D 在超频状态下的积热问题还是不容忽视的,此前SkatterBencher已经发表过类似的看法。 […]

  13. AMD Ryzen 7 5800X3D CPU โอเวอร์คล็อกได้เกือบ 4.9 GHz บนเมนบอร์ด X570 GODLIKE ของ MSI - TH Atsit

    […] คำวิจารณ์ของ SkatterBencher แม้จะใช้ชุดระบายความร้อนแบบ custom-loop […]

  14. AMD Ryzen 7 5800X3D CPU Reaches Almost 4.9 GHz Overclock on MSI's X570 GODLIKE Motherboard - Allas-Start

    […] be pointed is that the AMD Ryzen 7 5800X3D runs really hot when overclocked and that can be seen in SkatterBencher’s review where despite using a custom-loop cooling kit, the chip peaked out at over 90C. The CPU does […]

  15. Guncelkal.net - AMD Ryzen 7 5800X3D CPU Reaches Almost 4.9 GHz Overclock on MSI’s X570 GODLIKE Motherboard

    […] be pointed is that the AMD Ryzen 7 5800X3D runs really hot when overclocked and that can be seen in SkatterBencher’s review where despite using a custom-loop cooling kit, the chip peaked out at over 90C. The CPU does […]

  16. La CPU AMD Ryzen 7 5800X3D raggiunge quasi 4,9 GHz di overclock sulla scheda madre X570 GODLIKE di MSI - IT Atsit

    […] Ryzen 7 5800X3D funziona molto caldo quando viene overcloccato e questo può essere visto in Recensione di SkatterBencher dove, nonostante l’utilizzo di un kit di raffreddamento ad anello personalizzato, il chip ha […]

  17. AMD Ryzen 7 5800X3D CPU Reaches Almost 4.9 GHz Overclock on MSI's X570 GODLIKE Motherboard - Techno Blender

    […] be pointed is that the AMD Ryzen 7 5800X3D runs really hot when overclocked and that can be seen in SkatterBencher’s review where despite using a custom-loop cooling kit, the chip peaked out at over 90C. The CPU does […]

  18. La CPU AMD Ryzen 7 5800X3D alcanza un overclock de casi 4,9 GHz en la placa base X570 GODLIKE de MSI - Tech News

    […] es que el AMD Ryzen 7 5800X3D se calienta mucho cuando se hace overclocking y eso se puede ver en Reseña de SkatterBencher donde a pesar de usar un kit de enfriamiento de circuito personalizado, el chip alcanzó un máximo […]

  19. Процесор AMD Ryzen 7 5800X3D з тактовою частотою майже 4,9 ГГц на платі MSI X570 GODLIKE – We Gek Blog's

    […] 7 5800X3D дуже сильно нагрівається при розгоні, і це видно. Огляд SkatterBencher, в якому, незважаючи на використання спеціального […]

  20. Le processeur AMD Ryzen 7 5800X3D atteint presque 4,9 GHz sur la carte mère X570 GODLIKE de MSI - FR Atsit

    […] Ryzen 7 5800X3D fonctionne très chaud lorsqu’il est overclocké et cela peut être vu dans Revue de SkatterBencher où, malgré l’utilisation d’un kit de refroidissement à boucle personnalisée, la […]

  21. AMD Ryzen 7 5800X3D CPU, MSI'ın X570 GODLIKE Anakartında Neredeyse 4.9 GHz Hızaşırtmaya Ulaşıyor - Dünyadan Güncel Teknoloji Haberleri | Teknomers

    […] şey, AMD Ryzen 7 5800X3D’nin hız aşırtıldığında gerçekten çok ısındığı ve bu Skater Bencher’ın incelemesi özel döngülü bir soğutma kiti kullanılmasına rağmen, çip 90C’nin üzerinde zirve […]

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