Intel Xeon E7 8890 v3 's Advantages
Released 5 years and 3 months late
Newer PCIe version (3 vs 2)
Higher base frequency (2.5GHz vs 2GHz)
Larger L3 cache size (45MB vs 12MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon L5638 's Advantages
Higher specification of memory (DDR3 vs DDR3)
Lower TDP (60W vs 165W)