Intel Xeon E3 1220L v2 's Advantages
Released 2 years and 2 months late
Newer PCIe version (3 vs 2)
More modern manufacturing process (22nm vs 45nm)
Lower TDP (17W vs 130W)
Xeon X7542 's Advantages
Higher specification of memory (1333 vs 3)
Higher base frequency (2.666GHz vs 2.3GHz)
Larger L3 cache size (18MB vs 8MB)