Quad core processor series intel xeon quad core package boxed socket socket 1150 number of processing cores 4 number of threads 4 clock frequency 31 ghz turbo boost max turbo frequency 35 ghz processor code name haswell tdp 80 watt stepping revision c0 stepping dmi 5 gts l2 cache 4 x 256 kb l2 cache 1 024 kb l3 cache 8 kb manufacturing process 22 nm suitable for intel system package fclga1150 features mmx sse sse2 sse3 ssse3 sse4