Intel Xeon E5640 's Advantages
Lower TDP (80W vs 95W)
Xeon E 2286G 's Advantages
Released 9 years and 2 months late
Higher specification of memory (2666 vs 3)
Newer PCIe version (3 vs 2)
Higher base frequency (4GHz vs 2.666GHz)
More modern manufacturing process (14nm vs 32nm)