Intel Xeon E3 1220L v3 's Advantages
Higher specification of memory (DDR3-1600 vs DDR3)
Lower TDP (13W vs 35W)
Intel Xeon E3 1268L v5 's Advantages
Released 2 years and 1 months late
Higher base frequency (2.4GHz vs 1.1GHz)
Larger L3 cache size (8MB vs 4MB)
More modern manufacturing process (14nm vs 22nm)