AMD Ryzen 9 3900X vs Intel Core i5-11600K

Ryzen 9 3900X vs Core i5-11600K comparison

In our benchmarks, the Ryzen 9 3900X beats the Core i5-11600K in overall performance. Despite this, the Core i5-11600K has the advantage in our gaming benchmark.

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 i5-11600K that has 6 cores. It also has more threads than the Core i5-11600K. Our comparison shows that the Core i5-11600K has a slightly higher clock speed compared to the Ryzen 9 3900X. Also, the Core i5-11600K has a slightly higher turbo speed. A Ryzen 9 3900X CPU outputs less heat than a Core i5-11600K CPU because of its 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 i5-11600K. The Ryzen 9 3900X also has significantly more L3 cache.

Modern CPUs generally have more logical cores than physical cores, this means that each core is split into multiple virtual cores, improving efficiency for parallel workloads. Indeed, the Ryzen 9 3900X has more threads than cores. Each physical core is split into multiple threads.