Xeon X5570 's Advantages
Higher base frequency (2.933GHz vs 2.1GHz)
Lower TDP (95W vs 125W)
Xeon D 2798NT 's Advantages
Released 12 years and 11 months late
Higher specification of memory (3200 vs 1333)
Newer PCIe version (4 vs 2)
Larger L3 cache size (30MB vs 8MB)
More modern manufacturing process (10nm vs 45nm)