Intel Xeon E3 1275 's Advantages
Higher base frequency (3.4GHz vs 2.8GHz)
Lower TDP (95W vs 240W)
AMD EPYC 74F3 's Advantages
Released 9 years and 11 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (256MB vs 8MB)
More modern manufacturing process (7nm vs 32nm)