AMD Ryzen 9 3900X vs Intel Core i9-11900KF

Ryzen 9 3900X vs Core i9-11900KF specs and performance

In our benchmarks, the Core i9-11900KF beats the Ryzen 9 3900X in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Ryzen 9 3900X in all gaming tests too.

When comparing core counts for these CPUs, we notice that the Ryzen 9 3900X has significantly more cores with 12 cores compared to the Core i9-11900KF that has 8 cores. It also has more threads than the Core i9-11900KF. These CPUs have different clock speeds. Indeed, the Ryzen 9 3900X has a slightly higher clock speed compared to the Core i9-11900KF. Despite this, the Core i9-11900KF has a slightly higher turbo speed. A Ryzen 9 3900X CPU outputs less heat than a Core i9-11900KF CPU because of its slightly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. The info from our database shows that the Ryzen 9 3900X has more L2 cache than the Core i9-11900KF. The Ryzen 9 3900X also has significantly more L3 cache.

Most CPUs have more threads than cores. This technology, colloquially called hyperthreading, improves performance by splitting a core into multiple virtual ones. This provides more efficient utilisation of a core. Indeed, the Ryzen 9 3900X has more threads than cores. Each physical core is split into multiple threads.