Intel Pentium J3710 's Advantages
Integrated graphics card
Lower TDP (6.5W vs 105W)
AMD Ryzen 9 3900X 's Advantages
Released 3 years and 6 months late
Higher specification of memory (3200 vs 1600)
Larger memory bandwidth (47.68GB/s vs 25.6GB/s)
Newer PCIe version (4.0 vs 2.0)
Higher base frequency (3.8GHz vs 1.6GHz)
More modern manufacturing process (7nm vs 14nm)