Intel Core i5 12600K / Core i9 12900K "Alder Lake" Linux Performance

[drakonas777]

So efficiency is about the same to ZEN3. It's nice to see that Intel is competitive again.

[uxmkt]

Performance is good, but power consumptions is quite high.

In fact, if you watched GamersNexus's take on it, the 12900K is performing like almost two 5900X (1.82). That's a rather terrible efficiency.

[poorguy]

Where are the usual data compression benchmarks ?

[birdie]

It's still broken unless the reviewer did a clean reinstall of WIn 11 on each CPU change.

https://twitter.com/HardwareUnboxed/...78534929461249

In later tweets they admitted they'd tested all the Ryzen 5000 CPUs so that they were not affected by the issue and they talked to other reviewers and shared the details.

[mlau]

Cool! This is honestly a lot better than I expected. It will be interesting to see how much performance is left on the table once Intel lands some hybrid core handling logic. Zen 4 with DDR5 shall make things pretty interesting.

Also, thanks a lot for the excellent review Michael!

Hm, the 12900K is quite underwhelming, especially 1 year after Zen3. It looks like a product intended solely to make ADL look good in benchmarks scores if you ignore the high power draw. Imagine a 5950X-like hypothetical 12990K with 16 real big cores: the thing would consume 400W at full load, and probably be only 1,5x faster than a 5950x on average.
The 12600K is the real star here.

[Vlad42]

All the reviewers had Windows 11 fully patched which includes a Ryzen 5000 L3 cache fix.

https://www.techpowerup.com/review/i...2th-gen/4.html

Windows 11 Professional 64-bit Build 10.0.22000.282 Includes AMD L3 latency fix

The Win 11 fix appears to be incomplete as there still appear to be problems for Zen 3 CPUs, especially those with multiple CCXs such as the 5900X and 5950X. Note how after the first 10MB, the latency starts to climb on the patched Win 11 (red) vs Win 10 (blue).

oS2T7wrxSPMKRgXNY3F5EU-970-80.jpg

[birdie]

The Win 11 fix appears to be incomplete as there still appear to be problems for Zen 3 CPUs, especially those with multiple CCXs such as the 5900X and 5950X. Note how after the first 10MB, the latency starts to climb on the patched Win 11 (red) vs Win 10 (blue).

Windows 10 (ten) results:

[birdie]

And here's Linux, sorry Windows 10 without Intel Thread Director support:



I've no idea what Michael has actually measured.

[Hans Bull]

darktable benchmarks are not on the page they are supposed to be on.

[birdie]

It turns out AVX-512 can be enabled in BIOS on Alder Lake P-cores, which disables E-cores.

Wow, that's freaking amazing. Any benchmarks for AVX-512? What's the source?

Anandtech claimed AVX-512 cannot be enabled.

Edit: Anandtech has all the data: https://www.anandtech.com/show/17047...d-complexity/2

OMG, that performance.



8 cores vs 16 cores and 3 times faster.