Opteron 4386 's Advantages
Higher base frequency (3.1GHz vs 1.1GHz)
Larger L3 cache size (8MB vs 4MB)
Intel Xeon E3 1220L v3 's Advantages
Released 9 months late
Higher specification of memory (1600 vs 3)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (13W vs 95W)