A8-5600K vs Core 2 Quad Q9400 specs and performance
In our benchmarks, the A8-5600K beats the Core 2 Quad Q9400 in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core 2 Quad Q9400 in all gaming tests too.
When comparing core counts for these CPUs, we notice that the Core 2 Quad Q9400 has significantly more cores with 4 cores compared to the A8-5600K that has 2 cores. But they both have the same number of threads. The Core 2 Quad Q9400 outputs less heat than A8-5600K thanks to a slightly 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 A8-5600K has more threads than cores. Each physical core is split into multiple threads.
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