CPU Benchmark Performance: Power, Web, And Science

Our previous set of ‘office’ benchmarks has often been a mix of science and synthetics, so this time we wanted to keep our office section purely on real-world performance. We've also incorporated our power and science testing into this section too. 

In this version of our test suite, all the science-focused tests that aren’t ‘simulation’ work are now in our science section. Where possible these benchmarks have been optimized with the latest in vector instructions.

We are using DDR5 memory on the Ryzen 9 7950X and Ryzen 5 7600X, as well as Intel's 12th Gen (Alder Lake) processors at the following settings:

  • DDR5-5200 CL44 - Ryzen 7000
  • DDR5-4800 (B) CL40 - Intel 12th Gen

All other CPUs such as Ryzen 5000 and 3000 were tested at the relevant JEDEC settings as per the processor's individual memory support with DDR4.


The nature of reporting processor power consumption has become, in part, a dystopian nightmare. Historically the peak power consumption of a processor, as purchased, is given by its Thermal Design Power (TDP, or PL1). For many markets, such as embedded processors, that value of TDP still signifies the peak power consumption. For the processors we test at AnandTech, either desktop, notebook, or enterprise, this is not always the case.

Modern high-performance processors implement a feature called Turbo. This allows, usually for a limited time, a processor to go beyond its rated frequency. Exactly how far the processor goes depends on a few factors, such as the Turbo Power Limit (PL2), whether the peak frequency is hard coded, the thermals, and the power delivery. Turbo can sometimes be very aggressive, allowing power values 2.5x above the rated TDP.

AMD and Intel have different definitions for TDP but are broadly speaking, applied the same. The difference comes from turbo modes, turbo limits, turbo budgets, and how the processors manage that power balance. These topics are 10000-12000 word articles in their own right, and we’ve got a few articles worth reading on the topic.

(0-0) Peak Power

Looking at the results of our Peak Power test, the Ryzen 9 7950X topped out at 221.8 W, which is around 30% higher than the TDP of 170 W it comes with. As stated by AMD, the Power Package Tracking or PPT limit for AM5 motherboards when used with 170W TDP Ryzen 7000 SKUs will be 230 W. Still, while it draws more power than its generational predecessors such as Zen 3 and Zen 2, the Zen 4-based Ryzen 7000 series benefits from higher core clock speeds, a higher single core boost frequency, as well as other implementations around TSMC's 5 nm manufacturing process.

The AMD Ryzen 5 7600X is more aimed at the mid-range, and as such has a lower overall power draw, with the peak power figures in our testing reaching 134.3 W. This is around the same levels of power draw as the Ryzen 9 3950 X, the Ryzen 9 5900X, and the Ryzen 7 5800X. Per AMD's specifications, the Ryzen 5 7600X has a TDP of 105 W, with around a 27 % variance in peak power compared to TDP.

From our testing, so far, it seems that Ryzen 7000 when combined with a premium X670E motherboard allows for up to 30% in terms of extra power allowances for higher single-core boost and overall faster all-core frequencies.


(7-1) Kraken 1.1 Web Test

(7-2) Google Octane 2.0 Web Test

In our web tests, the overall improvements in IPC, frequency, clock speeds, and the switch to DDR5 all play a part in performance here. Both the Ryzen 9 7950X and Ryzen 7 7600X top our charts in regards to web testing, although performance isn't as apparent as it should be in other areas.


(2-1) 3D Particle Movement v2.1 (non-AVX)

(2-2) 3D Particle Movement v2.1 (Peak AVX)

For our 3DPM v2.1 testing, we added in the Intel Core i9-11900K (Rocket Lake) to show performance across AVX workloads. Although Intel officially fused off the AVX2/512 extensions on Alder Lake which did cause a little controversy and gave the impression that AVX-512 on consumer platforms was dead. AMD clearly believes the opposite, as it has implemented it so that AVX-512 runs two cycles over a 256-bit wide instruction. The performance of the Ryzen 9 7950X here is phenomenal, although the Core i9-11900K which did indeed feature AVX instruction sets in the silicon, is still better than the Ryzen 5 7600X with AVX workloads.

(2-3) yCruncher 0.78.9506 ST (250m Pi)

(2-4) yCruncher 0.78.9506 MT (2.5b Pi)

(2-4b) yCruncher 0.78.9506 MT (250m Pi)

Focusing on our more science-based tests, both the Ryzen 9 7950X and Ryzen 5 7600X perform well against the competition. In our 3DPMv2.1 test in non-AVX, the Ryzen 9 7950X provided a jump of 35% in performance against the previous generation Ryzen 9 5950X processor.

Interestingly, in our yCruncher 0.78 test, the Ryzen 9 7950X and the Core i9-12900K trade blows consistently, although the Ryzen 5 7600X performs well for its price point.

SPEC2017 Multi-Threaded Results CPU Benchmark Performance: Simulation And Encoding


View All Comments

  • Freeb!rd - Monday, September 26, 2022 - link

    This paragraph reads like someone having a stroke while writing it...

    "Although this is overridable through manually overclocking with a maximum TJ Max of up to 115°C, it’s key tovitalte that users will need to use more premium and aggressive cooling types to squeeze every last drop of performance from ZAMD intended thistended when designing Zen 4, and as such, has opted not to bundls own CPU coolers with the retail packages."

    and someone's spell checker is broken.
  • gryer7421 - Monday, September 26, 2022 - link

    It reads like a GTP-3 BOT .... :( Reply
  • Threska - Monday, September 26, 2022 - link

    We now know "Zencally " is a word. Reply
  • Gavin Bonshor - Monday, September 26, 2022 - link

    Hi, yeah something screwy happened, but it's fixed now. Apologies. I think it may be time to update to a new system, and software. This isn't the first time it's jumbled stuff up for me. Reply
  • Cow86 - Monday, September 26, 2022 - link

    I wish I could say that all the errors in the article are fixed, but that very paragraph even still has several (big) errors in it... A missing letter is one thing, half a sentence just missing and going into the next is another. Reply
  • herozeros - Monday, September 26, 2022 - link

    Keep the copy editor awake, or fire them. Grammar/syntax/CMS error, it doesn't matter if it gives me a headache reading this. Reply
  • Ryan Smith - Monday, September 26, 2022 - link

    Unfortunately we're having to do this kind of live. It's been a very busy past two weeks and we haven't had as much time to prepare as we like. So most of what you're seeing is first-draft copy, which I'll get around to editing as I can.

    Digital publications do not employ dedicated copy editors any more. They have all been let go for cost efficiency reasons.
  • flyingpants265 - Monday, September 26, 2022 - link

    What? Come on now. Reply
  • Hifihedgehog - Monday, September 26, 2022 - link

    @flypants265: It's kind of like Microsoft who got rid of their QA team and made all of their developers honorary QA tests. They can't help it that their leadership is being stupid. Don't blame Ryan or Gavin. Blame these greedy cheapskates that likewise didn't want to pay Ian Cutress enough to want to stay. Reply
  • Hifihedgehog - Monday, September 26, 2022 - link

    *QA testers Reply

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