AMD Threadripper PRO 7965WX 's Advantages
Newer PCIe version (5 vs 4)
Higher base frequency (4.2GHz vs 3.5GHz)
Larger L3 cache size (128MB vs 16MB)
AMD Ryzen Embedded 8640U 's Advantages
Released 6 months late
Higher specification of memory (DDR5-5600 vs DDR5-5200)
More modern manufacturing process (4nm vs 5nm)
Lower TDP (28W vs 350W)