Intel Xeon E5 1620 v2 's Advantages
Higher base frequency (3.7GHz vs 3.4GHz)
Larger L3 cache size (10MB vs 8MB)
Intel Xeon E 2334 's Advantages
Released 8 years late
Higher specification of memory (3200 vs 1866)
Newer PCIe version (4 vs 3)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (65W vs 130W)