10 core Intel Core i9-10900X disappoints in Geekbench; scores 10% less than the AMD Ryzen 9 3900X in multicore tasks and falls up to 2.3x behind the Threadripper Zen 2 series - NotebookCheck.net News
AMD Ryzen 9 3900X: A challenger for Intel's CPU crown
AMD's third-generation Ryzen series is finally available, with comparative reviews of Ryzen 9 3900X and Intel Core i9-9900K available - GIGAZINE
AMD Ryzen 9 3900X vs. Intel Core i9-9900K: Which High-End CPU to Buy? | PCMag
First official gaming benchmarks released for AMD Ryzen 9 3900X, as fast as Intel's i9 9900K