Intel Xeon E3 1275 v5 's Advantages
Higher base frequency (3.6GHz vs 2.4GHz)
Lower TDP (80W vs 165W)
Intel Xeon Platinum 8260 's Advantages
Released 3 years and 2 months late
Higher specification of memory (DDR4 vs DDR3)
Larger L3 cache size (35.75MB vs 8MB)