AMD Ryzen Threadripper 3990X 's Advantages
Larger memory bandwidth (95.37GB/s vs 83.2GB/s)
Larger L3 cache size (128MB vs 32MB)
AMD Ryzen 7 7700X 's Advantages
Released 2 years and 8 months late
Integrated graphics card
Higher specification of memory (DDR5-5200 vs DDR4-3200)
Newer PCIe version (5.0 vs 4.0)
Higher base frequency (4.5GHz vs 2.9GHz)
More modern manufacturing process (5nm vs 7nm)
Lower TDP (105W vs 280W)