Intel Xeon E3 1220L 's Advantages
Lower TDP (20W vs 210W)
Xeon w7 2555X 's Advantages
Released 13 years and 4 months late
Higher specification of memory (4800 vs 3)
Newer PCIe version (5 vs 3)
Higher base frequency (3.3GHz vs 2.2GHz)
Larger L3 cache size (33.75MB vs 3MB)
More modern manufacturing process (10nm vs 32nm)