Intel Xeon E5 2637 v2 's Advantages
Higher base frequency (3.5GHz vs 3.4GHz)
Larger L3 cache size (10MB vs 8MB)
Intel Xeon E 2124G 's Advantages
Released 4 years and 8 months late
Higher specification of memory (DDR4 vs DDR3)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (72W vs 130W)