Quad core processor series intel xeon quad core package tray number of processing cores 4 number of threads 8 clock frequency 35 ghz turbo boost max turbo frequency 37 ghz processor code name broadwell tdp 135 watt stepping revision r0 stepping l2 cache 4 x 256 kb l2 cache 1 024 kb l3 cache 15 kb manufacturing process 14 nm suitable for intel system features mmx advanced vector extensions avx advanced vector extensions 20 avx2 sse sse2