Xeon L5639 's Advantages
Higher specification of memory (1333 vs 3)
Higher base frequency (2.133GHz vs 1.8GHz)
Lower TDP (60W vs 70W)
Intel Xeon E5 2650L 's Advantages
Released 1 years and 1 months late
Newer PCIe version (3 vs 2)
Larger L3 cache size (20MB vs 12MB)