The AMD Ryzen 9 7900, Ryzen 7 7700, and Ryzen 5 7600 Review: Zen 4 Efficiency at 65 Watts
by Gavin Bonshor on January 9, 2023 9:00 AM ESTCPU Benchmark Performance: Rendering And Encoding
Rendering tests, compared to others, are often a little more simple to digest and automate. All the tests put out some sort of score or time, usually in an obtainable way that makes it fairly easy to extract. These tests are some of the most strenuous in our list, due to the highly threaded nature of rendering and ray-tracing, and can draw a lot of power.
If a system is not properly configured to deal with the thermal requirements of the processor, the rendering benchmarks are where it would show most easily as the frequency drops over a sustained period of time. Most benchmarks in this case are re-run several times, and the key to this is having an appropriate idle/wait time between benchmarks to allow for temperatures to normalize from the last test.
One of the interesting elements of modern processors is encoding performance. This covers two main areas: encryption/decryption for secure data transfer, and video transcoding from one video format to another.
In the encrypt/decrypt scenario, how data is transferred and by what mechanism is pertinent to on-the-fly encryption of sensitive data - a process by which more modern devices are leaning to for software security.
We are using DDR5 memory on the 12th and 13th Gen Core parts, as well as the Ryzen 7000 series, at the following settings:
- DDR5-5600B CL46 - Intel 13th Gen
- 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.
Rendering
Focusing on rendering performance, the entry-level Ryzen 5 7600 starts to fall behind in comparison to the other SKUs. Even in terms of CineBench R23 single-threaded performance, it sits below Intel's 12th Gen Alder Lake chips (albeit in a very packed field). Meanwhile in the multi-threaded test, it is blown away by the parts with 10 cores and above.
The real surprise is how well the Ryzen 9 7900 performs, as it is consistently better than the previous generation Ryzen 9 5950X, and even trades blows with the Intel Core i9-12900KS processor in quite a few tests. The Ryzen 7 7700 also performs well, but with just 8C/16T, and at 65 W, it basically bridges the gap directly in the middle between the Ryzen 9 7900 and the Ryzen 5 7600.
Encoding
As we saw in our rendering tests, the same thing can be said about performance in encoding. The Ryzen 9 7900 offers the highest levels of performance (as expected), with the Ryzen 5 7600 being one of the slowest chips we've tested so far since we updated our test suite for 2023. The Ryzen 7 7700 once again bridges the gap between the other two Ryzen 7000 65 W SKUs.
Despite not offering world-beating levels of performance, all three chips are running with a 65 W TDP and given the results, even the Ryzen 5 7600 performs above our expectations here.
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Zucker2k - Wednesday, January 11, 2023 - link
https://www.anandtech.com/show/17418/amd-corrects-...65x1.35 =87.75ppt
105x1.35=141.75ppt
120x1.35=162ppt
125x1.35=168.75ppt
170x1.35=229.5ppt
juhatus - Monday, January 9, 2023 - link
"Looking at the Ryzen 9 7900, it marginally beats out the Ryzen 9 _7950X_ and sits" - Typo, should be 5950X, above borderlands 3 test on conclusion page.Gavin Bonshor - Monday, January 9, 2023 - link
Thank you for spotting that!MadAd - Monday, January 9, 2023 - link
Did I miss the single core performance test?djsvetljo - Monday, January 9, 2023 - link
I am concerned about Zen4 minimum power draw (idle). Judging by graphs on page 2, it seems like CPU consumes 20 watt on idle???Going back to the Zen4 X comparison vs 13th gen, Intel seems to have advantage at idle. Planning to update home server that sits on idle or very low load 80% of the day, but needs to be on 24/7. I eventually am planing to run VMs on it (rare gaming with GPU pass thru). Thoughts?
duploxxx - Tuesday, January 10, 2023 - link
thoughts? you are creating a wacko system. one site you want to have low low idle, and than intel is better although the latest generation is less difference... its not the cpu, its the total package with pci-e5 etc that is upping the idle power. on the other side you want GPU power which eats already 50% of your total idle power. so the diff between intel and amd will now be only way less vs total idle.. on top for VM you should have an AMD multicore for sure. my advise? wait for the 7000 APU it might fit both your needs.kpb321 - Monday, January 9, 2023 - link
Is it just me or do the 7600x and 7700x just seem like bad deals compared to the newly released chips. $30 moves you up to the 7700 or 7900 respectively with the same rated boost clocks for ST task. Lower base clocks will hurt but the additional cores will help compensate in most MT situations. The 7700 beats the 7600x in many of the multi-threaded tests and does it for a small premium and while using a lot less power in the process.steveofwa - Monday, January 9, 2023 - link
Seems like there is no reason for the "x" versions to exist. They can have their non X with good power efficiency, and the x3d for performance.Byte - Tuesday, January 10, 2023 - link
X is now the "founders" edition where rather than get discounts like kickstarter, you pay for the privilege for getting it first. Nvidia did this with the 2080Ti FE being $1200 whereas msrp was $999. They saw it work well so everyone taking a page. Ryzen traditionally launched with non-X and that was the go to. The X is mostly for emotional reasons which plays a bigger factor in marketing than you think. Most people will never lower themselves to a x700 series card for instance. That is why nvidia did two 4080s in the beginning but backtracked. Wrong move.AndrewJacksonZA - Monday, January 9, 2023 - link
Hi. For "(3-3) Dolphin 5.0 Render Test" you have the test results in your Bench different to the test results in the graph.In the graph:
Intel Core i9-12900KS = 182.2
In your Bench:
Intel Core i9-12900KS with DDR5 = 169
Intel Core i9-12900K with DDR4 = 181
Also, according to your Bench, for "(3-4c) Factorio v1.1.26 Test, 20K Hybrid," the i3-12300 with a score of 72 beats *ALL* the new Ryzen 7xxx CPUs. Can you confirm that please?
I haven't checked any of the other results to your bench but suspect that more might also be different. Also, are efforts underway to update the Bench to include these results, please?
Thank you