Author Topic: Low benchmarks on Ryzen 9950X  (Read 284 times)

2025-07-27, 13:03:52

Sasan

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Hey Folks,

I have recently upgraded from Ryzen 5950X to 9950X, which I was really excited about when I saw the benchmarks for it on Corona 10 Chaos benchmarks.
Attached shows my benchmarks for it. I think it's pretty low comparing to other benchmarks, it's falls under the very end page of benchmark page for Corona 10.
My ram frequency is 4800hz but for some reason either CPU or motherboard don't support four sticks ram running more than 3600hz.
I have enabled PBO for the CPU in Bios, it only enhaced it from 13.8mil rays/sec to the one in the picture.
One last thing I have in mind is a fresh installation of the windows.

I would really appriciate if you have any suggestion that could enhance the benchmark.

Thanks

2025-07-27, 14:04:50
Reply #1

James Vella

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Dont think a Windows reinstall would change anything.

Seems like the top performers (red box) have a much higher cpu frequency.

Yours sits about in line with the ones in the blue box so seems about right. Maybe the top scores are overclocking or something?



edit:
maybe share these details, this comparison shows faster ram, larger cache, higher cpu frequency.

« Last Edit: 2025-07-27, 14:16:21 by James Vella »

Today at 18:17:03
Reply #2

marchik

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I've spent the last few months tuning various 9950x, including x3d versions, and I can say that your result is quite standard for stock values.

The score in your case will be affected by:
  • The processor sample, the silicon lottery allows some samples to take higher frequencies at lower voltage and lower temperatures
    it's a pure lottery, if you really want to and have free funds, you can sell your sample on the secondary market and buy a new one in the store in the hope that you'll get lucky or consider the X3D option, I believe that AMD uses selected chips for them and the result is always better on average
  • The speed and latency of the RAM. The ability of 4 modules to work at the declared frequencies depends on the
    • processor sample
    • its Integrated Memory Controller
    • motherboard sample and BIOS version
    • sample of RAM modules and the chips themselves (SK Hynix will be preferred for 2x rank modules)
    • the number of PCB layers on your motherboard, for a value below 8 it will be very difficult to run 4 32+ GB modules at high frequencies.
    All this requires manual adjustment and long tests, but changing the frequency from 3600 MT/s and latency of 90 ns, to 6000 MT/s 75 ns will give about 500,000 (or slightly less) additional points in Corona Benchmark 10
    I think that almost any memory can be made to work at 4800 MT/s by lowering the impedances, if the motherboard is from the mid-range + segment. I advise you to contact a specialist with this question. You can also look at the QVL list of your motherboard and look for kits of the required volume there, they will work "out of the box"
  • Cooling system: A regular 360 AIO based on Asetek will allow dissipating about 220-230W of heat from this processor, 420 AIO about ~ 240-250W, options with 6 fans in the Push-Pull configuration 260 + W, Custom systems with several radiators up to about 320W, then this value rests precisely on the heat sink cover of the processor itself, then you need to remove it and put liquid metal. A larger reserve for the heat package gives more room for increasing the processor frequency using the PBO algorithm or manual overclocking. You can check how much your processor consumes in the render using monitoring utilities. for example HWInfo. Look for CPU Package or similar parameter
    My recommendation would be the Arctic Liquid Freezer III 360-420 with 6 fans in Push-Pull configuration, it's quiet, inexpensive and gives great cooling headroom.
  • BIOS settings and the motherboard itself and its VRM.
    When you enable PBO, change the scalar to 10x and enable boost override by +200MHz, you unlock the frequency increase within the temperature limit and the processor will work as fast as possible and increase the voltage until it hits its temperature limit. (The behavior of this algorithm is also affected by many settings and factors, up to the BIOS version). But in simple words - if you have good cooling, the processor will overclock faster. In your case, it works at a frequency of 5000 MHz, but most of the good results that you see are obtained at frequencies of 5200 MHz +
    At this stage, Curve Optimizer comes into play, which reduces the voltage supplied to each core while maintaining the frequency, which means the PBO algorithm will overclock your processor even further, because there is still headroom to the temperature limit. If you are lucky with your CPU sample (and your cores do not need much voltage to work stably at high frequency) then you can get a decent increase in performance.
    You can find many guides on youtube on how Curve Optimizer works and how to find optimal values.
  • Testing conditions. The ambient temperature greatly affects the result, there is a big difference if you run the test at an air temperature of 30C or 21C, 9 degrees will be added to your processor, because that is how much hotter the liquid in the cooling system will be.
    Launched additional programs. The highest result will be if you load Windows in safe mode (up to +1,000,000 points), however, in this mode the minimum processor frequency is shown (it seems to be 4300 MHz and you can always recognize such results in the list), where nothing will interfere with the work of your CPU. Each additional process takes up the resources of your computer and the result will be worse. Utilities that simultaneously monitor sensor readings (hwinfo, motherboard software such as Armory Crate from Asus, iCue from Corsair, etc.) have a particularly strong effect; they must access the CPU every second to to read the readings, and therefore reduce the result.
    Run the test after a clean Windows startup and remove everything in the processes and tray that was activated in startup and set your air conditioner to the minimum temperature :D

so 14kk+ is OK for how 9950x works on average at 4.8-5GHz and 3600 MT/s memory speed. Using the tips above you can get around 16kk without any problems and with acceptable temperatures. I got results from the first and second pages of the list. But it requires some luck with the CPU sample and usually everything that is on the top of the list uses 2 memory modules at high frequency, manual overclocking with forced frequency and voltage setting + good cooling up to liquid nitrogen, this is more of a competitive thrill than a working mode for your tasks, so do not worry.
« Last Edit: Today at 18:24:49 by marchik »