Intel Xeon W 2102 's Advantages
Released 5 years and 3 months late
Higher specification of memory (DDR4-2666 vs DDR3)
Higher base frequency (2.9GHz vs 2.7GHz)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (120W vs 130W)
Intel Xeon E5 4650 's Advantages
Larger L3 cache size (20MB vs 8.25MB)