AMD Ryzen 9 3900X gaming benchmarks reveal turning off SMT narrows the performance gap with the Core i9-9900K only in select titles - NotebookCheck.net News
4GHz CPU Battle: Ryzen 3900X vs. 3700X vs. Core i9-9900K | TechSpot
Temperature & power consumption : AMD Ryzen 9 3900X vs. Ryzen 7 3700X vs. Intel Core i9-9900K: Which is the best gaming CPU? - HardwareZone.com.sg