Xeon 6740E 's Advantages
Released 10 years and 9 months late
Higher specification of memory (6400 vs 3)
Newer PCIe version (5 vs 3)
Higher base frequency (2.4GHz vs 1.8GHz)
Larger L3 cache size (96MB vs 10MB)
More modern manufacturing process (5nm vs 22nm)
Intel Xeon E5 2603 v2 's Advantages
Lower TDP (80W vs 250W)