8 core processor upgrade series intel xeon eight core number of processing cores 8 number of threads 16 clock frequency 21 ghz turbo boost max turbo frequency 3 ghz processor code name broadwell tdp 85 watt stepping revision r0 stepping l2 cache 8 x 256 kb l2 cache 2 048 kb l3 cache 20 kb manufacturing process 14 nm suitable for lenovo system features mmx sse sse2 sse3 sse4 sse41 sse42 ssse3 tbt 20 advanced vector extensions avx adva