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The Exiled · 01.12.2021., 13:32

Citiraj:

Autor Disco

E- jezgre bliže sandyu nego skaylakeu.

Š.O.K._i_V.J.E.V.E.R.I.C.A.

Citiraj:

Intel’s 12th-gen hybrid core design is really interesting and it does bring some obvious benefits for productivity workloads and will no doubt prove very beneficial in the mobile space. Now you’re probably thinking, "sure, I saw the benchmarks, I get that E-cores don't perform well for gaming on their own, but why?" The answer is simple, and it’s the same reason why first-gen Ryzen was down on Intel for gaming when matched at the same core count. Core-to-core latency is very weak -- we’re talking about a 54% increase on average. Typically, P-cores take 37ns to communicate with one another whereas the E-cores take 57ns and this cripples performance in games and for any other workload that relies heavily on core crosstalk.

The reason Intel’s limited interconnect between the E-cores is to make them more efficient, both in terms of power usage and the amount of die space they require. For sequential workloads like what we see with rendering, for example, where there’s very little core-to-core communication, the E-cores work well and this is why Intel used SPECrate2017 to make their Skylake efficiency claim. If we look at the broader picture, the hybrid design even on the desktop makes sense, at least for Intel. A part like the Core i9-12900K can claim to house "16 total" cores with 24-threads, because technically that's what it packs, even if not all cores are equal. On paper, the 12900K looks comparable to the Ryzen 9 5950X, and when put to the test in applications that can leverage these core-heavy desktop parts, the 12900K still looks great, as the E-core weakness that is core-to-core communication isn’t emphasized by those workloads, think Blender as one such example.

Izvor: TechSpot

Sva sreća, pa Raptor Lake ima duplo više tih manjih (i poboljšanih?) jezgri, a Alder Lake kao općenito najbolji gaming CPU "ima korist" od manjih jezgri u najbitnijim aplikacijama - igre.

Jao, i sva ta skalamerija za sveukupno samo 10% bolji IPC u odnosu na godinu dana stari Zen 3 dizajn. Ajde, kad stigne Core i5-12400(F) onda bude AMD možda spustil cijenu 5600X modela.