Intel Xeon E5 2640 v3 's Advantages
Higher specification of memory (DDR4-1866 vs DDR4)
Lower TDP (90W vs 205W)
Intel Xeon Platinum 8268 's Advantages
Released 4 years and 3 months late
Higher base frequency (2.9GHz vs 2.6GHz)
Larger L3 cache size (35.75MB vs 20MB)
More modern manufacturing process (14nm vs 22nm)