Intel Xeon E3 1240 v3 's Advantages
Higher base frequency (3.4GHz vs 2GHz)
Lower TDP (80W vs 250W)
Xeon 6746E 's Advantages
Released 11 years late
Higher specification of memory (5600 vs 1600)
Newer PCIe version (5 vs 3)
Larger L3 cache size (96MB vs 8MB)
More modern manufacturing process (5nm vs 22nm)