Intel Xeon E3 1220 's Advantages
Higher base frequency (3.1GHz vs 2GHz)
Xeon D 1746TER 's Advantages
Released 10 years and 10 months late
Higher specification of memory (2667 vs 3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (15MB vs 8MB)
More modern manufacturing process (10nm vs 32nm)
Lower TDP (67W vs 80W)