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 2.2GHz)
More modern manufacturing process (14nm vs 32nm)
Intel Xeon E5 2660 's Advantages
Larger L3 cache size (20MB vs 16MB)
Lower TDP (95W vs 125W)