Intel Core i5-7400 vs Intel Core i3-7100

The Intel Core i5-7400 and Intel Core i3-7100 are 7th generation desktop processors, both based on Intel's 14nm Kaby Lake-S architecture.

The Core i5-7400 is aimed at more demanding users, while the Core i3-7100 was designed for basic tasks. The Intel Core i5-7400 features 4 cores and 4 threads, in contrast to the Intel Core i3-7100 with 2 cores and 4 threads through Hyper-Threading. Both support PCIe 3.0 and offer 38 GB/s memory bandwidth as well as integrated Intel HD Graphics 630.

A significant difference lies in the Level 3 Cache: 6 MB for the Intel Core i5-7400 compared to 3 MB for the Intel Core i3-7100. In single-core performance, both processors are comparable. However, for tasks utilizing multiple cores, the Intel Core i5-7400 offers significantly higher performance, making it better suited for multitasking and newer games.

The Intel Core i3-7100 reaches its limits faster here. Information on thermal design and power consumption (TDP) is not directly available for both processors. Generally, however, due to its higher core count, the Intel Core i5-7400 tends to require more energy and generate more heat than the more energy-efficient Intel Core i3-7100.

Since both models are older and mainly available on the used market, prices vary. Historically, the Intel Core i5-7400 offered a better price-performance ratio for balanced performance, while the Intel Core i3-7100 represented the more cost-effective option for basic systems.

In summary, the Intel Core i5-7400 is the recommendation for users who need better multi-core performance for applications and gaming. The Intel Core i3-7100 is sufficient for basic productivity and efficient everyday tasks.