Intel Xeon E5 2663 v3 's Advantages
Released 2 years and 10 months late
Higher specification of memory (DDR4-2133 vs DDR3)
Newer PCIe version (3 vs 2)
Higher base frequency (2.8GHz vs 2.1GHz)
Larger L3 cache size (25MB vs 16MB)
Lower TDP (105W vs 115W)