Intel Xeon W 2104 's Advantages
Released 5 years and 5 months late
Higher specification of memory (2666 vs 3)
Higher base frequency (3.2GHz vs 2.5GHz)
More modern manufacturing process (14nm vs 32nm)
Intel Xeon E5 2640 's Advantages
Larger L3 cache size (15MB vs 8.25MB)
Lower TDP (95W vs 120W)