AMD Ryzen 9 3900X vs Intel Core i9-9900K

Ryzen 9 3900X vs Core i9-9900K specs and performance

Our benchmark analysis concludes that the Ryzen 9 3900X performs better than the Core i9-9900K. Despite this, the Core i9-9900K has the advantage in our gaming benchmark.

With info from our database, we find that the Ryzen 9 3900X has significantly more cores with 12 cores whereas the Core i9-9900K has 8 cores. It also has more threads than the Core i9-9900K. These CPUs have different clock speeds. Indeed, the Ryzen 9 3900X has a slightly higher clock speed compared to the Core i9-9900K. Despite this, the Core i9-9900K has a slightly higher turbo speed. The Core i9-9900K outputs less heat than Ryzen 9 3900X thanks to a slightly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. In terms of cache, the Ryzen 9 3900X has significantly more L2 cache when compared to the Core i9-9900K. The Ryzen 9 3900X also has significantly more L3 cache.

The more cores a CPU has, the better the overall performance will be in parallel workloads such as multitasking. Many CPUs have more threads than cores, this means that each physical core is split into multiple logical cores, making them more efficient. Indeed, the Ryzen 9 3900X has more threads than cores. Each physical core is split into multiple threads.