Anyone know the specs of AMD Zen CPU's
Anyone know the specs of AMD Zen CPU's
Thanks!
From what I've been able to gather, from only the most reliable of sources:
10 pipelines:
4x ALU (1x mult, 1x div, 4x add/sub, etc.)
2x AGU (both fully store/load capable)
4x FPU (non-uniform, gangable, units)
Four fully-capable decoders (akin to Bulldozer's decoders, but updated, so about ~20% faster than was is needed to *support* Haswell IPC).
Most of the latest instructions sets (except AVX512, which is not a loss).
Some form of SMT (such as Intel's Hyper-Threading).
Target TDP: 95W. For which configuration was never stated. If this is the 8-core CPU, that's astonishing (or possibly quite worrying), if it's for the quad core with SMT (akin to a 4790k, for example), then it's an improvement, but not enough to match Intel - but enough to make it non-issue if performance is identical.
Smaller, faster, L2 (512KB rumored). No information on L1 or L3, aside from some rumors about the L3 being shared in a quad-core group, however. L1 cache is probably larger and faster at the same time. My guess is that cache associativity has been increased.
Clockrate is a complete wildcard. AMD knows how to make high-clocking CPUs, but on a new process that isn't tailored for it designed becomes extremely critical and you have to give up IPC for clockrate.
Going from here everything would just be speculation.
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