AMD Ryzen 9 3900X 's Advantages
Higher specification of memory (DDR4-3200 vs DDR4-2666)
Larger memory bandwidth (47.68GB/s vs 41.6GB/s)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (3.8GHz vs 3.5GHz)
Larger L3 cache size (64MB vs 2MB)
Intel Celeron G5920 's Advantages
Released 10 months late
Integrated graphics card
Lower TDP (58W vs 105W)