Intel Xeon E5 4607 's Advantages
Higher base frequency (2.2GHz vs 1.7GHz)
Lower TDP (95W vs 105W)
Intel Xeon E5 4648 v3 's Advantages
Released 3 years and 1 months late
Higher specification of memory (DDR4-1866 vs DDR3)
Larger L3 cache size (30MB vs 15MB)
More modern manufacturing process (22nm vs 32nm)