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OcUK RX5800X3D review thread

humbug said:
200 watts in some of those game for the 12900KS.
Click to expand...

The most telling thing for me is how much they push these CPUs just to get ahead in the bloody benchmarks. Dial down the voltage! The 5700X has similar results to the 5800X3D, way ahead of the 5800X.
 
KompuKare said:
When TPU jumpted the reviews, I was surprised that on the apps side only really WinRAR performed much better. I do suspect that the build-in 7zip benchmark (easy to use) does not see any benefit because of the settings: default is a 32MB dictionary whereas for solid archives larger ones tend to get better results. Default 7z Ultra setting is to use a 64MB dictionary but the memory usage estimate is far above that:
UVn4cSp.png
I suspect to really take advantage of the huge cache will require developer work.
From the Phoronix reviews of Milan-X:
https://www.phoronix.com/scan.php?page=article&item=amd-epyc-7773x-linux&num=1
and the kernel 5.18 follow-up:
https://www.phoronix.com/scan.php?page=article&item=amd-milanx-linux518&num=1
The kernel made big difference. And while their reviews stick to their standard test suite, being able to re-compile (which I assume they do) makes a big difference.

Obviously, HPC workloads tend to be used to having to re-compile. Although even then I would think more can be squeezed out of certain workloads rather than just telling the compiler that the target has lots of cache.

Bethesda's Creation Engine will an interesting to see results, we just need a volunteer:



Will interested to see your results. I would also appreciate posting in @CAT-THE-FIFTH's FO4 benchmark thread:
https://forums.overclockers.co.uk/t...hmark-thread-need-some-zen3-results.18946938/


Yes, the power figures in the CB review are pretty telling. We all know the 12900KS is the Special-power-hug-Editon, but since 5800X3D uses less power than the 5800X due to the lower clocks, the 12900KS uses closer to three times the power:
XGJTdC5.png
https://www.computerbase.de/2022-04...2/#abschnitt_die_leistungsaufnahme_in_spielen
58W vs 151W is a very poor showing for Intel's KS model. And the extra 46W compared the normal 'K' gains them at most 3% at 720P (and even a regression in RT performance for whatever reason). Guess power usage is no longer important.
Click to expand...

Well you saw huge improvements in performance in MS Flight Simulator and Factorio already!
 
KompuKare said:
When TPU jumpted the reviews, I was surprised that on the apps side only really WinRAR performed much better. I do suspect that the build-in 7zip benchmark (easy to use) does not see any benefit because of the settings: default is a 32MB dictionary whereas for solid archives larger ones tend to get better results. Default 7z Ultra setting is to use a 64MB dictionary but the memory usage estimate is far above that:
UVn4cSp.png
I suspect to really take advantage of the huge cache will require developer work.
From the Phoronix reviews of Milan-X:
https://www.phoronix.com/scan.php?page=article&item=amd-epyc-7773x-linux&num=1
and the kernel 5.18 follow-up:
https://www.phoronix.com/scan.php?page=article&item=amd-milanx-linux518&num=1
The kernel made big difference. And while their reviews stick to their standard test suite, being able to re-compile (which I assume they do) makes a big difference.

Obviously, HPC workloads tend to be used to having to re-compile. Although even then I would think more can be squeezed out of certain workloads rather than just telling the compiler that the target has lots of cache.

Bethesda's Creation Engine will an interesting to see results, we just need a volunteer:



Will interested to see your results. I would also appreciate posting in @CAT-THE-FIFTH's FO4 benchmark thread:
https://forums.overclockers.co.uk/t...hmark-thread-need-some-zen3-results.18946938/


Yes, the power figures in the CB review are pretty telling. We all know the 12900KS is the Special-power-hug-Editon, but since 5800X3D uses less power than the 5800X due to the lower clocks, the 12900KS uses closer to three times the power:
XGJTdC5.png
https://www.computerbase.de/2022-04...2/#abschnitt_die_leistungsaufnahme_in_spielen
58W vs 151W is a very poor showing for Intel's KS model. And the extra 46W compared the normal 'K' gains them at most 3% at 720P (and even a regression in RT performance for whatever reason). Guess power usage is no longer important.
Click to expand...


That 12900k power draw while gaming is exactly the same as my 5950x, high core CPUs pull a lot of power doesn't matter who it is
 
Grim5 said:
That 12900k power draw while gaming is exactly the same as my 5950x, high core CPUs pull a lot of power doesn't matter who it is
Click to expand...

Your CPU should not be pulling more than the 5800X in those charts, it certainly should not be pulling more than 130 watts whatever its doing unless you overclocked it.
 
Last edited:
Grim5 said:
That 12900k power draw while gaming is exactly the same as my 5950x, high core CPUs pull a lot of power doesn't matter who it is
Click to expand...

Yeah but the point there is the KS really is pulling hugely more for very minimal gain. It clearly has dropped off a cliff on return after you get past the standard K series chip.
 
Journey said:
I see some nutter has already pushed the X3D to 5.15GHz using BCLK (1.2v), that's gonna be some serious performance if it were stable for anything other than CPU-Z validation.
Click to expand...
Suicide run!

Thing is, if they kill it would think the data points might actually be useful to AMD too.

Well slightly useful anyway, as I'd assume AMD's QA, validation, and packaging teams have already done similar with the advantage that the have far more debug info plus might even send some destroyed dies for electron microscope analysis.
 
Curlyriff said:
Why not? My 5950x also pulls similar power to the 12900k (although yes not over 130watt as it stock) but certainly similar figures.
Click to expand...
There is a 142 watt limit on the socket, its should't be pulling more than that unless you have PBO set.

Edit: the 12900K is pulling up to 145 watts in games, @Grim5 said the 5950X is the same, its not.

The power consumption should be the same as the 5800X ish, as its using the same number of cores for games
 
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