Intel Core i3-8109U vs Intel Core i7-8665U

Core i3-8109U vs Core i7-8665U specs and performance

Our benchmark analysis concludes that the Core i7-8665U performs better than the Core i3-8109U. Furthermore, our gaming benchmark shows that it also outperforms the Core i3-8109U in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Core i7-8665U has significantly more cores than the Core i3-8109U. Indeed, the Core i7-8665U has 4 cores compared to 2 cores found in the Core i3-8109U. It also has more threads than the Core i3-8109U. Our comparison shows that the Core i3-8109U has a significantly higher clock speed compared to the Core i7-8665U. Despite this, the Core i7-8665U has a slightly higher turbo speed. The Core i7-8665U outputs less heat than Core i3-8109U thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

The more cores a CPU has, the better the overall performance will be in parallel workloads such as multitasking. Many CPUs have more threads than cores, this means that each physical core is split into multiple logical cores, making them more efficient. Indeed, the Core i3-8109U has more threads than cores. Each physical core is split into multiple threads.