Intel Xeon E3 1270L v4 's Advantages
Higher base frequency (3GHz vs 1.9GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (45W vs 105W)
Intel Xeon E5 4640 v3 's Advantages
Higher specification of memory (1866 vs 1866)
Larger L3 cache size (30MB vs 6MB)