Re:Intel Microcode Decryptor
by jsjohnst on Wednesday July 20, 2022 @08:30AM
(#32164787)
I have a distinct feeling that neither of them have even the slightest clue what they are talking about. If they did understand processor design and had seen pages like this[0], they’d realize that a Goldmont cpu is not dramatically different from a other Intel cores and “microcoding” had virtually no bearing on “why it’s cheaper to make”. The real reasons it’s cheaper:
- only three instruction decoders
- max IPC of 3
- no AVX, AVX2, AVX512
- vector registers are limited to 128bit
- generally tops out below 2ghz as base clock with turbo boost into the mid 2s at best
- very basic integrated GPU on non-server versions running at 200-600mhz
Less registers, less IPC, lower clock frequencies, and less execution units = cheaper cost.
So explain how microcode had something to do with that again?
- only three instruction decoders
- max IPC of 3
- no AVX, AVX2, AVX512
- vector registers are limited to 128bit
- generally tops out below 2ghz as base clock with turbo boost into the mid 2s at best
- very basic integrated GPU on non-server versions running at 200-600mhz
Less registers, less IPC, lower clock frequencies, and less execution units = cheaper cost.
So explain how microcode had something to do with that again?
[0] https://web.archive.org/web/20210117163607/https://www.extre...