Intel Xeon D 1521 's Advantages
Lower TDP (45W vs 500W)
AMD EPYC 9755 's Advantages
Released 8 years and 11 months late
Higher specification of memory (6000 vs 4)
Newer PCIe version (5 vs 3)
Higher base frequency (2.7GHz vs 2.4GHz)
Larger L3 cache size (512MB vs 1.5MB)
More modern manufacturing process (4nm vs 14nm)