Intel Xeon Gold 6530 's Advantages
Higher base frequency (2.1GHz vs 1.9GHz)
Larger L3 cache size (160MB vs 108MB)
Xeon 6766E 's Advantages
Released 6 months late
Higher specification of memory (6400 vs 4800)
More modern manufacturing process (5nm vs 10nm)
Lower TDP (250W vs 270W)