Zen 5’s ability to handle AVX512 close to its regular clock speed impressively contrasts with older architectures like Skylake X. However, comparing Zen 5 directly against outdated nodes and generations might be misleading. It would be interesting to examine the performance of newer Intel Xeons (fabbed in Intel 3) when running AVX512 tasks compared to current EPYCs for a more accurate comparison between these two competing platforms. Author’s deep dives are appreciated, but testing with actual new hardware could provide even better insights.
Regarding clock stretching behavior mentioned as “colloquially called,” it refers to the process where CPUs insert idle cycles or no-ops intentionally to prevent overvoltage issues caused by excessive frequency demands during heavy workloads. This helps maintain stability while avoiding potential damage due to voltage droop.
In conclusion, Zen 5’s AVX512 performance compared with older architectures like Skylake X is remarkable but requires further evaluation against contemporary competitors for a fair assessment of its real-world advantages over rival processors.
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