Intel Core i9 12900K vs. AMD Ryzen 9 5950X On Linux 6.0

[torsionbar28]

Well, the explicit purpose of the 12900K was to "one-up" AMD at the cost of horrible inefficiency

Echoes of the P4 Prescott era. What's old is new again!

[yump]

Fair point. Do we know if Intel's idle or near-idle power usage is better though? It aught to be due to the E-cores, but would still be good to know.

Almost certainly, but not because of the E-cores. AMD's problems are the I/O die and the mandatory discrete graphics.

[qarium]

So performance per watt is now very similar across both CPUs on the average, which is interesting. Still a bit worse on the Intel chip, but not by a huge amount.

yes thats very interesting i always thought intels 10nm node is much worst but it looks like the different is small but amd still has a small advantage.

but what we do not know is what is because of intel ISA war and what is because of the 10nm node.

[hamishmb]

Have they? According to the benchmark data here, the efficiency is only marginally worse. Do you have a source that paints a worse picture?

[r1348]

Well, the explicit purpose of the 12900K was to "one-up" AMD at the cost of horrible inefficiency, so I think Intel has succeeded there.

[hamishmb]

It's depends. Eg. programmers may fully loaded CPU only for a few minutes per day, but may play games eg. 1h so Intel becomes more effective .

Fair point. Do we know if Intel's idle or near-idle power usage is better though? It aught to be due to the E-cores, but would still be good to know.

[otoomet]

...programmers may fully loaded CPU only for a few minutes per day, but may play games eg. 1h so Intel becomes more effective .

In that case maybe consider something like i5-12400 or ryzen 5600 instead?

More seriously, I'd love to see the power efficiency data for more mainstream cpu-s. The flagship models are not what most people will get.

[HEL88]

So performance per watt is now very similar across both CPUs on the average, which is interesting. Still a bit worse on the Intel chip, but not by a huge amount.

It's depends. Eg. programmers may fully loaded CPU only for a few minutes per day, but may play games eg. 1h so Intel becomes more effective .

[caligula]

Efficiency has a new meaning these days.
Parts of Europe are easily hoovering around $0.5 per kWh on average.

I doubt that's gonna be a problem. People want max perf and are willing to overclock which can double the cost.

[Michael]

Michael

typo page 4:

"to perform better whike" should be "to perform better while"

grammar/typo page 7:

"across this wide span of benchmarks and many covering many different workloads." should perhaps be "across this wide span of benchmarks and covering many different workloads." (no double many).

Thanks,