Intel Xeon E5 2648L v3 's Advantages
Higher specification of memory (DDR4-2133 vs DDR3)
Larger L3 cache size (30MB vs 8MB)
Intel Xeon E3 1565L v5 's Advantages
Released 1 years and 8 months late
Higher base frequency (2.5GHz vs 1.8GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (35W vs 75W)