alt Hacker Newslittle annoying to see the one-core-compared-to-whole-gpu comparisons - now decades past when this was an innocent wrong.
compare a 500W GPU to all the cores of a 500W CPU, please. I'm not expecting the CPU (say, a 192-core AMD that does fast AVX512) to beat the GPU on all data-parallel workloads, but it won't be the silly sort of graphs shown in this blog.
or compare one SM to one CPU core - that has merit as well.
best yet, we're finally getting some CPUs (well, APUs...) with in-package RAM. that makes the comparison more interesting as well.
The first example plot is a 9950X that includes all threads with AVX512 vs a 4090. The 9950X has a 170W TDP, which doesn’t include any other components like the RAM or motherboard. The 4090’s total max power is ~450W. The chart shows the 4090 burying the 9950X by far more than 450/170.
Comparing SMs to CPU cores 1:1 also makes no sense. They don’t do the same things.