18 core processor series intel xeon eighteen core number of processing cores 18 number of threads 36 clock frequency 25 ghz turbo boost max turbo frequency 33 ghz processor code name haswell ex tdp 165 watt stepping revision e0 stepping quickpath interface 96 gts l2 cache 18 x 256 kb l2 cache 4 608 kb l3 cache 45 kb manufacturing process 22 nm suitable for hewlett packard system package fclga2011 features mmx sse sse2 sse3 sse4 sse41