Intel Xeon E5 1620 's Advantages
Higher base frequency (3.6GHz vs 1.8GHz)
Xeon D 2752TER 's Advantages
Released 9 years and 11 months late
Higher specification of memory (2667 vs 3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (20MB vs 10MB)
More modern manufacturing process (10nm vs 32nm)
Lower TDP (77W vs 130W)