Intel Xeon E3 1280 v3 's Advantages
Released 3 years and 3 months late
Newer PCIe version (3 vs 2)
Higher base frequency (3.6GHz vs 1.866GHz)
More modern manufacturing process (22nm vs 45nm)
Lower TDP (82W vs 95W)
Xeon L7555 's Advantages
Higher specification of memory (1333 vs 4)
Larger L3 cache size (18MB vs 8MB)