2 ms·
Yeah that would be the thing to prove that prime95 is going through more instructions so the cpu runs hotter
by tayo42 5y ago
Yeah that would be the thing to prove that prime95 is going through more instructions so the cpu runs hotter
- waterhouse 5y agoI see. But I expect that some instructions cost more (i.e. generate more heat) than others. Someone mentions AVX instructions, for example; presumably 1 million AVX-512 fused-multiply-add instructions cost a lot more than 1 million loads (we can probably arrange for the right proportion of loads to hit a CPU cache vs. go to main memory, so that they end up taking the same time). Even without AVX, I imagine things like 64-bit integer divisions or CRC32 instructions cost more than loads or stores, though I don't know by how much.
- tayo42 5y agooh that makes sense, i guess that would be another aspect to measure