Xeon E 2126G 's Advantages
Released 3 years and 10 months late
Higher specification of memory (DDR4-2666 vs DDR4-2133)
Higher base frequency (3.3GHz vs 1.8GHz)
More modern manufacturing process (14nm vs 22nm)
Intel Xeon E5 2648L v3 's Advantages
Larger L3 cache size (30MB vs 12MB)
Lower TDP (75W vs 80W)