Xeon w7 2555X 's Advantages
Released 10 years and 3 months late
Higher specification of memory (4800 vs 1600)
Newer PCIe version (5 vs 3)
Larger L3 cache size (33.75MB vs 8MB)
More modern manufacturing process (10nm vs 22nm)
Intel Xeon E3 1226 v3 's Advantages
Lower TDP (84W vs 210W)