Intel Xeon E5 1620 v2 's Advantages
Higher base frequency (3.7GHz vs 3.5GHz)
Lower TDP (130W vs 220W)
Intel Xeon W 3323 's Advantages
Released 7 years and 10 months late
Higher specification of memory (3200 vs 1866)
Newer PCIe version (4 vs 3)
Larger L3 cache size (18MB vs 10MB)
More modern manufacturing process (10nm vs 22nm)