Intel Xeon X5660 's Advantages
Higher base frequency (2.8GHz vs 2.2GHz)
Lower TDP (95W vs 180W)
AMD EPYC 7601 's Advantages
Released 7 years and 3 months late
Higher specification of memory (2666 vs 3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (64MB vs 12MB)
More modern manufacturing process (14nm vs 32nm)