Intel Xeon E5 2680 v2 's Advantages
Larger L3 cache size (25MB vs 8.25MB)
Lower TDP (115W vs 120W)
Intel Xeon W 2104 's Advantages
Released 3 years and 11 months late
Higher specification of memory (2666 vs 3)
Higher base frequency (3.2GHz vs 2.8GHz)
More modern manufacturing process (14nm vs 22nm)