Intel Xeon E5 2689 's Advantages
Higher specification of memory (1600 vs 4)
Higher base frequency (2.6GHz vs 2.4GHz)
Lower TDP (115W vs 165W)
Xeon Platinum 8260 's Advantages
Released 6 years and 9 months late
Larger L3 cache size (35.75MB vs 20MB)
More modern manufacturing process (14nm vs 32nm)