Discussion PES | Assessing Power and Performance Efficiency of x86 CPU architectures

[Cstops]

Here's a lower bound test for what it's worth with a first-gen Ryzen (1800x) on an x370 Taichi (P5.60 Bios). Stock settings iirc except for memory which is set to 3200 Mhz (don't remember timings; it's been a while).

 

[Kocicak]

The outcomes for Intel 13900K capped at 250W:



160W:



100W:



and 65W:

 

[BorisTheBlade82]

Thanks to @Kocicak we now already have results for Raptor Lake.

Some thoughts:

• Performance Efficiency at ST has improved quite a bit compared to Alder Lake. And with the one exception of the R5 7600X it is also significantly ahead of Zen 4.
• At MT Raptor Lake improves Performance Efficiency by around 70% compared to Alder Lake. It is at least able to be on par with the 5950X now, although still lagging quite a bit behind the 7950X - but at least Intel was able to reduce the gap a bit.
• Taking into account that Intel7 is a full node behind TSMCs N5, this is not a bad showing - which in turn is good for consumers as heavy competition will help street-prices.

I have also updated all the matrices and rankings in posts #2 and #3.

@BorisTheBlade82
Would it be possible to insert an average lines on the chart for CPUs with multiple results? That way many possible parameters could be covered over time without adding more points for each single one.

Good point. I will try that when I find the time.

 

[naad]

The outcomes for Intel 13900K capped at 250W-65W

What's with the peak power in Single thread loads? If I didn't know better I'd say it was inrush current lol

 

[Kocicak]

It could be because I did not limit PL1 power draw. I am not sure.

 

[BorisTheBlade82]

What's with the peak power in Single thread loads? If I didn't know better I'd say it was inrush current lol

That is when Cinebench gets loaded and prepares the scene. This is not capped to one thread. But that is essentially the same for every CPU and has no significant influence to the outcome.

 

[thigobr]

@thigobr
Your Zenbook seems to be limited to 12w PPT. If this is performance mode, how low is the limit for other modes?
This is quite good for energy consumption. But it also leaves a lot of performance on the table.

I don't know what happened there, probably a bug on the MyAsus app... I did the test again this time making sure performance mode was enabled. Sustained power is 25W in this mode

 

[naad]

That is when Cinebench gets loaded and prepares the scene. This is not capped to one thread. But that is essentially the same for every CPU and has no significant influence to the outcome.

Makes sense, thanks.

 

[Cstops]

I couldn't resist upgrading my 1800x to a 5700x (the price was right, had an itch to scratch, and it's a drop-in upgrade).

Here's the results I got. Same mobo (x370 Taichi, P7.1 BIOS) at stock settings (PBO defaults to 'auto') except for RAM (3,200 MT/s via XMP).



Relative to my old 1800x, looking at a 36% reduction in finish time in ST and and 30% per run in MT.
All while sipping power (-42% in ST and -54% in MT in measured "consumption," respectively) in this instance.

 

[mmaenpaa]

AMD Ryzen 7 7700X BOX AM5 8C/16T 105W
ASROCK B650E PG RIPTIDE WIFI ATX MB AM5 (bios 1.11)
KINGSTON 32GB 6000MT/s DDR5 CL36 DIMM (@EXPO settings)
FRACTAL DESIGN Celsius S24 Water Cooling (manual setting)

All bios settings at default except EXPO memory (so PBO is *off*).

EDIT : After checking BorisTheBlade82 results I am thinking that Asrock AUTO profile has PBO enabled, as MT efficiency is so much lower than his results. I will try Ryzen master curve optimizer next.

 

[mmaenpaa]

AMD Ryzen 7 7700X BOX AM5 8C/16T 105W
ASROCK B650E PG RIPTIDE WIFI ATX MB AM5 (bios 1.11)
KINGSTON 32GB 6000MT/s DDR5 CL36 DIMM (@EXPO settings)
FRACTAL DESIGN Celsius S24 Water Cooling (manual setting)
Windows 11 Pro

This is after Ryzen Master Curve Optimizer, (test 60 seconds). First try with 30 second test did not "take". Ie. PC would not boot fater applying & restarting. It seems that it is safer to use longer test to get stable result. Optimizing with 60 seconds took 1 hour and 25 minutes with 7700X.

 

[mmaenpaa]

Intel I5-12500H, with AC & battery
ACER NITRO 5 AN515-58-5214 15.6" FHD IPS 144HZ/I5-12500H/16GB/512SSD/RTX 3060

AC:

DC:

 

[JoeRambo]

7950x @ 5Ghz static @ 1.025V, 2x32GB DDR5 6000C36, 16C32T, iGPU on



7950x @ 5Ghz static @ 0.97V, 2x32GB DDR5 6000C36, 16C16T, iGPU on



Not really "peak" efficiency runs, as SOC/IO/DDR5 voltages were high to support DDR5 speeds that don't really help CB23 at all and also integrated GPU was on, with dGPU it would be more efficient too.
And 5Ghz is not really a peak efficiency point either, but everyone knows that 5Ghz is almost 2x faster than 4.9Ghz. And obviously the cooler in mATX case was not up to task either.

 

[mmaenpaa]

LENOVO P14s G3 R7-6850U 14 32GB/1TB
Windows 11 Pro "clean" install, default everything. Drivers & firmware up to date (14.12.2022)

Running on AC


Running on battery

 

[mmaenpaa]

LENOVO P14S G2 R7-5850U/14FHDT/16GB/512SSD
Windows 11 Pro "clean" install, default everything. Drivers & firmware up to date (14.12.2022)

Running on AC


Running on battery

 

[BorisTheBlade82]

@mmaenpaa
Thanks a lot for sharing these results of directly comparable SKUs of Cezanne and Rembrandt.
Just as expected there is no significant improvement for the latter in the CPU department - the results are a bit all over the place.
Interesting that Lenovo seem to have changed the power profiles quite significantly. 15w vs. 30w sustained - and Rembrandt seems to scale pretty well, being slightly on top in terms of performance efficiency at twice the wattage. Seems they wanted to unleash some performance in the newer generation.
Also, some interesting ST behaviour on battery - capped at 8w while MT is capped at 30w - do they cap the max. boost clock on battery?
I fully expect Phoenix Point to significantly improve at comparable wattages.

 

[BorisTheBlade82]

Just updated the rankings and charts in order to include the latest results.

 

[igor_kavinski]

Core i5-1235U HT enabled



HT disabled


Both while plugged in.

Laptop: HP ProBook 450 15.6 inch G9 Notebook PC

Stock setting GB5:

HP HP ProBook 450 15.6 inch G9 Notebook PC - Geekbench Browser

Benchmark results for a HP HP ProBook 450 15.6 inch G9 Notebook PC with an Intel Core i5-1235U processor.

browser.geekbench.com

Going to post more benchmarks in the laptop section when I have time.

 

[BorisTheBlade82]

Release v0.8.0 - Let the Geeks out!

• Geekbench 5 integration
• You will now have the choice which test to run - so if you only want to run Geekbench 5, now you can (just takes around 3 minutes on an average machine).
• Reworked Results Renderers (Results Excel.xlsx, Results LibreOffice.ods)
• Reduced Cooldown between tests to 20 seconds

Some remarks about the Geekbench 5 integration

• We measure the whole GB5 run - single-thread and multi-thread - together. It is not possible to run these two separately with the Tryout version. As both parts apply the same workload, this will very likely result in rather good scaling with ST-performance and efficiency of a CPU and rather bad with pure core-count. So GB5 should be considered a lightly-threaded workload.
• While CB R23 is a sustained full load, GB5 is rather bursty. So the Boost behaviour of the CPU plays a significant role.

More Information: GitHub | Performance Efficiency Suite

Download v0.8.0

I hope you all will enjoy this and contribute some data.

/edit: Added GB5 Matrix and Rankings to the opening posts.

 

[BorisTheBlade82]

Geekbench 5 results from my HP Envy x13 AMD R7 4700U
On Battery


AC


As you can see, the boost behaviour of Renoir has a significant impact on Performance-Efficiency. For me, it is quite worth it - the negative performance impact on battery is not perceivable, while the extra efficiency is more than welcome and more than outweighs the former aspect.

 

[Det0x]

Always have so much problems when i try to run this software

When i click allow updating im getting this error


Then i get some of the data shown


All the data collected see to be there no ?

 

[igor_kavinski]

I hope you all will enjoy this and contribute some data.

Thank you so much!

Benchmarking is now so easy. Killing two birds with one stone

Hope you will look into adding some extensive Libreoffice tests

 

[BorisTheBlade82]

Always have so much problems when i try to run this software

When i click allow updating im getting this error
View attachment 74062

Then i get some of the data shown
View attachment 74063

All the data collected see to be there no ?

View attachment 74064

Did I already mention that I hate LibreOffice Calc?
Seriously. Could you just append the CSV files from the LogCsv subfolder as a Zip please? I will have a look or at least post your result.

 

[Det0x]

Did I already mention that I hate LibreOffice Calc?
Seriously. Could you just append the CSV files from the LogCsv subfolder as a Zip please? I will have a look or at least post your result.

Here you go, have saved the CSV files @ https://easyupload.io/m/5amdyp

7950x @ the following power targets:

260PPT
160PPT
105 cTDP
65 cTDP
50PPT

Please post best/interesting results

 

[BorisTheBlade82]

Here you go, have saved the CSV files @ https://easyupload.io/m/5amdyp

7950x @ the following power targets:

260PPT
160PPT
105 cTDP
65 cTDP
50PPT

Please post best/interesting results

Okay, so here are your results. And as these are the first Geekbench 5 results we have from a person that is not me, I am quite surprised as well. To be honest, I would not have expected such bad performance-efficiency. In CB R23 a 7950x usually is better than my Renoir in multi-thread and more or less on par in single-thread.
Your system was in idle before testing and you also had no severe workloads running in parallel?
So beyond 105w there is almost no performance scaling while consumption goes up.

50w PPT


65w PPT


105w


160w


260w