Intel Core i5-10400 vs Intel Core i7-7700

The Intel Core i7-7700, based on the Kaby Lake S architecture, was introduced as part of the 7th generation for the mainstream desktop market.

The Intel Core i5-10400, from the 10th generation with the Comet Lake S architecture, represented a newer option for the broad market.

Both processors are manufactured using Intel's 14 nm fabrication process and support PCIe Version 3.0. The Intel Core i7-7700 features 4 cores and 8 threads, complemented by 8 MB of Level 3 cache and 0 MB of Level 2 cache. Its integrated graphics unit is the Intel HD Graphics 630, which achieves a maximum memory bandwidth of 38 GB/s.

The Intel Core i5-10400, on the other hand, offers 6 cores and 12 threads, a larger 12 MB Level 3 cache, and also 0 MB of Level 2 cache. It integrates the Intel UHD Graphics 630 with a memory bandwidth of 43 GB/s. In single-core performance, the Intel Core i5-10400 surpasses the Intel Core i7-7700 by more than 10 percent.

For multi-core tasks, the Intel Core i5-10400 shows significantly higher performance, clearly exceeding the 10 percent threshold. This makes it the better choice for modern multitasking and gaming. Both CPUs have a Thermal Design Power (TDP) of 65 watts, indicating similar cooling requirements.

The Intel Core i5-10400 offers better value for money due to its superior performance and more current platform. The Intel Core i7-7700 is suitable for basic tasks on existing older systems. The Intel Core i5-10400 is the clearly better recommendation for demanding applications, gaming, and future requirements.