Intel Xeon E5 2697 v2 's Advantages
Higher base frequency (2.7GHz vs 1.8GHz)
Lower TDP (130W vs 225W)
Xeon 6756E 's Advantages
Released 10 years and 9 months late
Higher specification of memory (DDR5-6400 vs DDR3)
Newer PCIe version (5 vs 3)
Larger L3 cache size (96MB vs 30MB)
More modern manufacturing process (7nm vs 22nm)