Xeon 6740E 's Advantages
Released 6 months late
Higher specification of memory (6400 vs 4800)
Higher base frequency (2.4GHz vs 2GHz)
More modern manufacturing process (5nm vs 10nm)
Lower TDP (250W vs 270W)
Intel Xeon Platinum 8581V 's Advantages
Larger L3 cache size (300MB vs 96MB)