Intel Core i3-10100 vs Intel Core i7-8665U

The Intel Core i3-10100, based on the Comet Lake S architecture, was launched in 2020. As a desktop processor, it is aimed at mainstream users for everyday tasks and productivity.

The Intel Core i7-8665U, a mobile processor from the Whiskey Lake U generation of 2019, is designed for Ultrabooks and business laptops where energy efficiency and portability are paramount.

Both CPUs are manufactured using the 14 nm process and feature 4 cores and 8 threads. The Intel Core i3-10100 offers 6 MB of Level 3 Cache and supports PCI Express 3.0. The Intel Core i7-8665U is equipped with 8 MB of Level 3 Cache. The integrated Intel UHD Graphics 630 of the Intel Core i3-10100 achieves 43 GB/s memory bandwidth, while the Intel UHD Graphics 620 of the Intel Core i7-8665U achieves 38 GB/s.

In benchmarks, the Intel Core i3-10100 shows significantly higher multi-core performance and, in relevant tests, also noticeably better single-core performance compared to the Intel Core i7-8665U. This indicates superior computing power for more demanding applications.

For gaming scenarios, the Intel Core i3-10100 offers a better foundation, especially with a dedicated graphics card, due to its higher clock speeds. The integrated graphics unit of the desktop processor is also more powerful. As a desktop CPU, the Intel Core i3-10100 has a higher Thermal Design Power (TDP), requires more cooling, and consumes more power under load.

The Intel Core i7-8665U is designed for maximum energy efficiency and low TDP, ideal for long battery life in mobile devices. The Intel Core i3-10100 offers good value for money for desktop systems. The value of the Intel Core i7-8665U is tied to the overall system in which it is installed.

In summary, the Intel Core i3-10100 is suitable for desktop users looking for performance for everyday tasks and gaming with an external graphics card. The Intel Core i7-8665U is ideal for mobile users who prioritize portability, energy efficiency, and reliable performance on the go.