Intel Xeon E7 8850 's Advantages
Higher base frequency (2GHz vs 1.8GHz)
Larger L3 cache size (30MB vs 20MB)
Intel Xeon E5 2630L v3 's Advantages
Released 3 years and 5 months late
Higher specification of memory (DDR4-1866 vs DDR3)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (55W vs 130W)