Gaming benchmarks : AMD Ryzen 9 3900X vs. Ryzen 7 3700X vs. Intel Core i9-9900K: Which is the best gaming CPU? - HardwareZone.com.sg
AMD Ryzen 9 3900X drops to an all-time low price of US$390 potentially jeopardizing both the Intel Core i7-10700K and the Core i9-10900K sales - NotebookCheck.net News
AMD Ryzen 9 3900X review: The Core i9-9900K killer? | Rock Paper Shotgun