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I have a Skylake E3 Xeon. Why didn't they use the Skylake cores for these E5 CPUs?
by mozumder 11y ago
I have a Skylake E3 Xeon. Why didn't they use the Skylake cores for these E5 CPUs?
- wmf 11y agoBecause it takes ~2 years to wrap the EP uncore around a new core and validate the whole thing. Expect Skylake-EP around a year from now.
- mozumder 11y agoAre the cores not the same as the Skylake Xeon cores that was released back in Fall? (are E3 cores different from E5 cores?)
- wmf 11y agoIt's more or less the same core (modulo AVX512), but E5 has a much more complex uncore than E3.
- gtirloni 11y agoFirst time I heard the term "uncore", thanks! https://en.wikipedia.org/wiki/Uncore https://en.wikipedia.org/wiki/Uncore
- bogomipz 11y agoCan you elaborate? Maybe I am misunderstanding EP here? There are Haswells E/EPs already.
- npunt 11y agoHaswell is the model prior to Broadwell, and was launched in 2013. https://en.wikipedia.org/wiki/Haswell_(microarchitecture) https://en.wikipedia.org/wiki/Haswell_(microarchitecture)
- bogomipz 11y agoUnderstood that Broadwell is "tick" on Haswell's "tock", I was questioning what the previous poster meant by the EP uncore. I thought all Xexon 2600s were "efficient performance(EP.)"