10 core processor upgrade series intel xeon ten core number of processing cores 10 number of threads 20 clock frequency 23 ghz turbo boost max turbo frequency 3 ghz processor code name haswell ep tdp 105 watt stepping revision m1 front side bus 4 800 mhz quickpath interface 96 gts l2 cache 10 x 256 kb l2 cache 2 560 kb l3 cache 25 kb manufacturing process 22 nm suitable for lenovo system package fclga2011 features mmx sse sse2 sse3 s