Opteron 1381 's Advantages
Higher specification of memory (1333 vs 4)
Intel Xeon E3 1285L v3 's Advantages
Released 4 years late
Newer PCIe version (3 vs 2)
Higher base frequency (3.1GHz vs 2.5GHz)
Larger L3 cache size (8MB vs 6MB)
More modern manufacturing process (22nm vs 45nm)
Lower TDP (65W vs 115W)