Intel Xeon E 2124 's Advantages
Released 6 years late
Higher specification of memory (DDR4 vs DDR3)
Higher base frequency (3.4GHz vs 2.2GHz)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (72W vs 80W)
Intel Xeon E5 2407 's Advantages
Larger L3 cache size (10MB vs 8MB)