Intel Xeon E5 2620 's Advantages
Larger L3 cache size (15MB vs 12MB)
Intel Xeon E 2356G 's Advantages
Released 9 years and 6 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 3)
Higher base frequency (3.2GHz vs 2GHz)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (80W vs 95W)