Xeon X5570 's Advantages
Higher specification of memory (1333 vs 4)
Higher base frequency (2.933GHz vs 2.4GHz)
Lower TDP (95W vs 165W)
Xeon Platinum 8260 's Advantages
Released 9 years and 9 months late
Larger L3 cache size (35.75MB vs 8MB)
More modern manufacturing process (14nm vs 45nm)