Core i9-9900K vs Ryzen 9 3900X: Which should you buy? (PC World) : r/Amd
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
AMD Ryzen 9 3900X vs. Intel Core i9-9900K: Which High-End CPU to Buy? | PCMag
AMD blows minds with a 16-core 7nm gaming CPU that works like any other Ryzen - The Verge
AMD Ryzen 9 3900X vs. Intel Core i9-9900K | Spec Comparison | Digital Trends