Ryzen 9 3900X vs Core i5-11400 comparison
Our benchmark analysis concludes that the Ryzen 9 3900X performs better than the Core i5-11400. Despite this, the Core i5-11400 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 i5-11400 has 6 cores. It also has more threads than the Core i5-11400. Our comparison shows that the Ryzen 9 3900X has a slightly higher clock speed compared to the Core i5-11400. Also, the Ryzen 9 3900X has a slightly higher turbo speed. The Core i5-11400 outputs less heat than Ryzen 9 3900X thanks to a significantly 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 i5-11400. 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.
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