Comparaisons IPC entre Raptor Cove, Zen 4, et les résultats surprenants du printemps de Golden Cove

OneRaichu, who has access to engineering samples of both the AMD "Raphael" Ryzen 7000-series, and Intel 13th Gen Core "Raptor Lake," performed IPC comparisons between the two, by disabling E-cores on the "Raptor Lake," fixing the clock speeds of both chips to 3.60 GHz, and testing them across a variety of DDR5 memory configurations. The IPC testing was done with SPEC, a mostly enterprise-relevant benchmark, but one that could prove useful in tracing where the moderately-clocked enterprise processors such as EPYC "Genoa" and Xeon Scalable "Sapphire Rapids" land in the performance charts. OneRaichu also threw in scores obtained from a 12th Gen Core "Alder Lake" processor for this reason, as its "Golden Cove" P-core powers "Sapphire Rapids" (albeit with more L2 cache).

With DDR5-4800 memory, and testing on SPECCPU2017 Rate 1, à 3.60 GHz, the AMD "Zen 4" core ends up with the highest scores in SPECint, topping even the "Raptor Cove" Noyau P. It scores 6.66, par rapport à 6.63 total of the "Raptor Cove," et 6.52 of the "Golden Cove." In the SPECfp tests, cependant, the "Zen 4" core falls beind "Raptor Cove." Ici, scores a 9.99 total compared to 9.91 of the "Golden Cove," et 10.21 of the "Raptor Cove." Things get interesting at DDR5-6000, a frequency AMD considers its "sweetspot," The 13th Gen "Raptor Cove" P-core tops SPECint at 6.81, par rapport à 6.77 of the "Zen 4," et 6.71 of "Golden Cove." SPECfp sees the "Zen 4" fall behind even the "Golden Cove" à 10.04, par rapport à 10.20 of the "Golden Cove," et 10.46 of "Raptor Cove."