Intel Xeon E3 1265L v3 's Advantages
Higher base frequency (2.5GHz vs 2.4GHz)
Lower TDP (45W vs 250W)
Xeon 6740E 's Advantages
Released 11 years late
Higher specification of memory (6400 vs 4)
Newer PCIe version (5 vs 3)
Larger L3 cache size (96MB vs 8MB)
More modern manufacturing process (5nm vs 22nm)