Intel Core i7-6600U vs Intel Core 2 Quad Q9400

Core i7-6600U vs Core 2 Quad Q9400 comparison

In our benchmarks, the Core i7-6600U 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.

With info from our database, we find that the Core 2 Quad Q9400 has significantly more cores with 4 cores whereas the Core i7-6600U has 2 cores. But they both have the same number of threads. These CPUs have different clock speeds. Indeed, the Core 2 Quad Q9400 has a slightly higher clock speed compared to the Core i7-6600U. A Core i7-6600U 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.

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 i7-6600U has more threads than cores. Each physical core is split into multiple threads.