Core i7-5500U vs Core 2 Quad Q9400 comparison
Our benchmark analysis concludes that the Core 2 Quad Q9400 performs better than the Core i7-5500U. Despite this, the Core i7-5500U has the advantage in our gaming benchmark.
In terms of the number of cores of each of these CPUs, the Core 2 Quad Q9400 has significantly more cores than the Core i7-5500U. Indeed, the Core 2 Quad Q9400 has 4 cores compared to 2 cores found in the Core i7-5500U. But they both have the same number of threads. With our hardware info, we find that the Core 2 Quad Q9400 has a slightly higher clock speed than the Core i7-5500U. A Core i7-5500U CPU outputs less heat than a Core 2 Quad Q9400 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 Q9400 has significantly more L2 cache than the Core i7-5500U
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 i7-5500U has more threads than cores. Each physical core is split into multiple threads.
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