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POWER8[edit source | editbeta]
Main article: POWER8
POWER8 is a 4 GHz, 12 core processor with 8 hardware threads per core for a total of 96 threads of parallell execution. It uses 96 MB of eDRAM L3 cache on chip and 128 MB off chip L4 cache and a new extension bus called CAPI that runs on top of PCIe, replacing the older GX bus. The CAPI bus can be used to attach dedicated off chip accelerator chips such as GPUs, ASICs and FPGAs. IBM states that it is two to three times as fast as its predecessor, the POWER7.
It will be built on a 22 nanometer process at the end of 2013 or early 2014.[1][2] In December 2012, IBM began submitting patches to the 3.8 version of the Linux kernel, to support new POWER8 features.[3] |
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