Intel Xeon W3670 's Advantages
Higher base frequency (3.2GHz vs 2.1GHz)
Lower TDP (130W vs 170W)
AMD EPYC 7281 's Advantages
Released 6 years and 10 months late
Higher specification of memory (DDR4-2666 vs DDR3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (32MB vs 12MB)