Intel Xeon E3 1220L 's Advantages
Released 11 months late
Newer PCIe version (3 vs 2)
More modern manufacturing process (32nm vs 45nm)
Lower TDP (20W vs 95W)
Xeon X3480 's Advantages
Higher specification of memory (1333 vs 3)
Higher base frequency (3.066GHz vs 2.2GHz)
Larger L3 cache size (8MB vs 3MB)