Intel Xeon E5 2658 's Advantages
Released 3 years and 6 months late
Newer PCIe version (3 vs 2)
More modern manufacturing process (32nm vs 45nm)
Lower TDP (95W vs 120W)
Xeon X5470 's Advantages
Higher specification of memory (3 vs 3)
Higher base frequency (3.333GHz vs 2.1GHz)