Intel Xeon E5 2648L v3 's Advantages
Released 2 years and 6 months late
Higher specification of memory (DDR4-2133 vs DDR3)
Larger L3 cache size (30MB vs 20MB)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (75W vs 115W)
Intel Xeon E5 2665 's Advantages
Higher base frequency (2.4GHz vs 1.8GHz)