Intel Core i7-6600U vs Intel Core i7-3940XM

Core i7-6600U vs Core i7-3940XM benchmarks

In our benchmarks, the Core i7-3940XM beats the Core i7-6600U in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-6600U in all gaming tests too.

When comparing core counts for these CPUs, we notice that the Core i7-3940XM has significantly more cores with 4 cores compared to the Core i7-6600U that has 2 cores. It also has more threads than the Core i7-6600U. These CPUs have different clock speeds. Indeed, the Core i7-3940XM has a slightly higher clock speed compared to the Core i7-6600U. Also, the Core i7-3940XM has a slightly higher turbo speed. A Core i7-6600U CPU outputs less heat than a Core i7-3940XM 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.