Xeon 6740E 's Advantages
Released 8 years and 8 months late
Higher specification of memory (6400 vs 2133)
Newer PCIe version (5 vs 3)
Higher base frequency (2.4GHz vs 2GHz)
Larger L3 cache size (96MB vs 8MB)
More modern manufacturing process (5nm vs 14nm)
Intel Xeon E3 1505L v5 's Advantages
Lower TDP (25W vs 250W)