U pravu si,
sve su usmjerili na AVX512 i tu imaju ogroman skok, ali isto tak imaju i usko grlo po pitanju memorijskog kontrolera za ove single-chiplet desktop modele, dok igre, a i dosta ostalih "svakodnevnih" aplikacija uopće nemaju korist od tih poboljšanja. Ko zna kaj sve su uspjeli sfušati u pozadini, pa da Ryzen 9 modeli nisu išli prvi u recenzijama, kak je i bilo planirano, pa donekle ostavili bolji prvi dojam, ali izgleda da Zen 5 ima najviše smisla u EPYC izdanjima koja su u stanju iskoristiti sve kaj se nudi.
Citiraj:
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Zen 5 improves upon Zen 4 by doubling all the hardware for AVX512. Nearly all datapaths and execution units have been expanded to 512-bit wide. Thus Zen 5 becomes the first desktop processor to be capable of 4 x 512-bit execution throughput. So we can see that Zen 5's biggest gains are in scalar integer and AVX512. Everything else is mediocre to disappointing. Consequently, the only way to utilize all this new hardware is to use 512-bit instructions. As a result, Zen 5 brings little performance gain for scalar, 128-bit, and 256-bit SIMD code. It's 512-bit or bust. The biggest achilles heel of Zen 5 is the memory bandwidth and the limited adoption of AVX512 itself. There simply isn't enough memory bandwidth to feed such an overpowered vector unit. And the amount of people who use AVX512 is rounding error from zero - thus leaving the new capability largely unutilized.
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