Quad core processor series intel xeon quad core package boxed socket socket 2011 number of processing cores 4 number of threads 4 clock frequency 25 ghz turbo boost processor code name ivy bridge ep tdp 80 watt stepping revision s1 stepping l2 cache 4 x 256 kb l2 cache 1 024 kb l3 cache 10 kb manufacturing process 22 nm suitable for intel system package fclga2011 features mmx sse sse2 sse3 ssse3 sse41 sse42 advanced vector extensions