Xeon 6756E 's Advantages
Released 10 years and 1 months late
Higher specification of memory (6400 vs 1600)
Newer PCIe version (5 vs 3)
Larger L3 cache size (96MB vs 8MB)
More modern manufacturing process (5nm vs 22nm)
Intel Xeon E3 1226 v3 's Advantages
Higher base frequency (3.3GHz vs 1.8GHz)
Lower TDP (84W vs 225W)