Intel Xeon E5 2643 's Advantages
Higher base frequency (3.3GHz vs 2.4GHz)
Lower TDP (130W vs 165W)
Xeon Platinum 8260 's Advantages
Released 6 years and 9 months late
Higher specification of memory (4 vs 3)
Larger L3 cache size (35.75MB vs 10MB)
More modern manufacturing process (14nm vs 32nm)