Xeon W 1390P 's Advantages
Released 9 years and 2 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 3)
Higher base frequency (3.5GHz vs 2.5GHz)
Larger L3 cache size (16MB vs 15MB)
More modern manufacturing process (14nm vs 32nm)
Intel Xeon E5 2640 's Advantages
Lower TDP (95W vs 125W)