AMD Threadripper PRO 7975WX 's Advantages
Released 13 years and 7 months late
Higher specification of memory (DDR5-5200 vs DDR3)
Newer PCIe version (5 vs 2)
Higher base frequency (4GHz vs 2.4GHz)
Larger L3 cache size (128MB vs 12MB)
Intel Xeon E5620 's Advantages
Lower TDP (80W vs 350W)