3 ms·
I'd also argue that some of the Zen5 features have the potential to be a big boost for gaming but the adoption just isn't there yet. AMD's AVX512 is a big deal
by CuriousCosmic 2y ago
I'd also argue that some of the Zen5 features have the potential to be a big boost for gaming but the adoption just isn't there yet.
AMD's AVX512 is a big deal because unlike Intel's implementation it doesn't trigger a 50 thousand cycle delay to start using it along with a massive downclock.
That means you can do SIMD way faster on these CPUs and there's virtually no induced latency (occasionally a 50 cycle delay for the 4x512 to presumably to finish charging caps if they are still depleted) and importantly no downclock which allows you to do burst AVX512 operations wherever you see a use instead of needing to carefully apply their use to compensate for a massive perf hit.
And while games generally push expensive SIMD to the GPU, having no-cost AVX512 lets you accelerate SIMD ops that aren't big enough to justify the latency of GPU offload or the hit to GPU occupancy.
It'll require engines and devs to adopt but there is a performance opportunity there if they are willing to take advantage of it.
- zamadatix 2y agoAVX512 triggering downclocks and taking a long time to switch to was an issue many generations ago. These days Intel's issue is they've stopped doing 512 on consumer SKUs.
- CuriousCosmic 2y agoI mean yeah that's also a major issue but the downclocks are still an issue.