Intel Xeon E3 1220 's Advantages
Lower TDP (80W vs 125W)
Xeon W 1370P 's Advantages
Released 10 years and 1 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 3)
Higher base frequency (3.6GHz vs 3.1GHz)
Larger L3 cache size (16MB vs 8MB)
More modern manufacturing process (14nm vs 32nm)