Core i5-650 vs Core 2 Quad Q9400 comparison
Our benchmark analysis concludes that the Core 2 Quad Q9400 performs better than the Core i5-650. Furthermore, our gaming benchmark shows that it also outperforms the Core i5-650 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 Core i5-650 that has 2 cores. But they both have the same number of threads. These CPUs have different clock speeds. Indeed, the Core i5-650 has a slightly higher clock speed compared to the Core 2 Quad Q9400. A Core i5-650 CPU outputs less heat than a Core 2 Quad Q9400 CPU because of its slightly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.
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 Core i5-650 has more threads than cores. Each physical core is split into multiple threads.
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