Core i5-11400 vs Core 2 Quad Q9550 benchmarks
In our benchmarks, the Core i5-11400 beats the Core 2 Quad Q9550 in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core 2 Quad Q9550 in all gaming tests too.
When comparing core counts for these CPUs, we notice that the Core i5-11400 has significantly more cores with 6 cores compared to the Core 2 Quad Q9550 that has 4 cores. It also has more threads than the Core 2 Quad Q9550. With our hardware info, we find that the Core i5-11400 has a slightly higher clock speed than the Core 2 Quad Q9550. A Core i5-11400 CPU outputs less heat than a Core 2 Quad Q9550 CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. The cache sizes of these CPUs are different. Indeed, the Core 2 Quad Q9550 has significantly more L2 cache than the Core i5-11400
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 i5-11400 has more threads than cores. Each physical core is split into multiple threads.
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