Intel Xeon E5 2698 v3 's Advantages
Higher specification of memory (DDR4-2133 vs DDR4-1866)
Higher base frequency (2.3GHz vs 1.7GHz)
Larger L3 cache size (40MB vs 30MB)
Intel Xeon E5 4648 v3 's Advantages
Released 9 months late
Lower TDP (105W vs 135W)