Intel Core i9-12900K vs Intel Core i7-5820K

Core i9-12900K vs Core i7-5820K specs and performance

According to the hardwareDB Benchmark tool, the Core i9-12900K is faster than the Core i7-5820K. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-5820K in all gaming tests too.

When comparing core counts for these CPUs, we notice that the Core i9-12900K has significantly more cores with 16 cores compared to the Core i7-5820K that has 6 cores. It also has more threads than the Core i7-5820K. These CPUs have different clock speeds. Indeed, the Core i7-5820K has a slightly higher clock speed compared to the Core i9-12900K. Despite this, the Core i9-12900K has a significantly higher turbo speed. The Core i7-5820K outputs less heat than Core i9-12900K thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

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 Core i9-12900K has more threads than cores. Each physical core is split into multiple threads.