Xeon E 2456 's Advantages
Lower TDP (80W vs 350W)
AMD Threadripper PRO 7975WX 's Advantages
Higher specification of memory (5200 vs 4800)
Higher base frequency (4GHz vs 3.3GHz)
Larger L3 cache size (128MB vs 18MB)
More modern manufacturing process (5nm vs 10nm)