Intel Xeon E3 1220L 's Advantages
Newer PCIe version (3 vs 2)
Higher base frequency (2.2GHz vs 1.8GHz)
Lower TDP (20W vs 85W)
Opteron 6366 HE 's Advantages
Released 1 years and 7 months late
Higher specification of memory (1866 vs 3)
Larger L3 cache size (8MB vs 3MB)