Xeon E 2276G 's Advantages
Higher base frequency (3.8GHz vs 1.8GHz)
Lower TDP (80W vs 225W)
Xeon 6756E 's Advantages
Released 5 years and 1 months late
Higher specification of memory (DDR5-6400 vs DDR4-2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (96MB vs 12MB)
More modern manufacturing process (7nm vs 14nm)