Intel Xeon E3 1220 's Advantages
Lower TDP (80W vs 125W)
Xeon W 1350P 's Advantages
Released 10 years and 1 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 3)
Higher base frequency (4GHz vs 3.1GHz)
Larger L3 cache size (12MB vs 8MB)
More modern manufacturing process (14nm vs 32nm)