Intel Xeon E3 1265L v4 's Advantages
Released 6 years late
Higher specification of memory (1866 vs 1333)
Newer PCIe version (3 vs 2)
More modern manufacturing process (14nm vs 45nm)
Lower TDP (35W vs 115W)
Opteron 1381 's Advantages
Higher base frequency (2.5GHz vs 2.3GHz)