Ibm Power 8 cache
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Specifically, the POWER8 cache memory includes 512KB of SRAM L2 cache per core, and 96 MB of eDRAM on-chip shared L3 cache with up to 128 MB of eDRAM off-chip L4 cache per socket. POWER8 provides the capacity to feed up to 12 cores with eight threads each, for a total of 96 simultaneous, high performance computational threads in a socket. Having enough cache to feed these threads as they crunch on data is a critical design point for the system.
