AMD EPYC 7663 's Advantages
Released 10 years and 1 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 2)
Larger L3 cache size (256MB vs 12MB)
Intel Xeon X5675 's Advantages
Higher base frequency (3.066GHz vs 2GHz)
Lower TDP (95W vs 240W)