Xeon L5639 's Advantages
Released 4 years and 6 months late
Higher specification of memory (1333 vs 2)
Newer PCIe version (2 vs 1)
Higher base frequency (2.133GHz vs 1.8GHz)
More modern manufacturing process (32nm vs 90nm)
Opteron 2210 EE 's Advantages
Lower TDP (45W vs 60W)