Intel Core i7-7700K vs Intel Core i5-10400

The Intel Core i7-7700K, based on the Kaby Lake S architecture, was introduced in the first quarter of 2017 as a high-end processor.

It is manufactured using a 14nm process and features 4 cores and 8 threads. The processor utilizes PCIe 3.0, offers a maximum memory bandwidth of 38 GB/s, and has 8 MB of Level 3 Cache. The integrated graphics unit is the Intel HD Graphics 630. Its strengths lie in high clock speeds and overclockability.

The Intel Core i5-10400, based on the newer Comet Lake S architecture, was launched in the second quarter of 2020 and targeted the mainstream desktop market.

Also manufactured using a 14nm process, it offers 6 cores and 12 threads. It utilizes PCIe 3.0, achieves a maximum memory bandwidth of 43 GB/s, and has 12 MB of Level 3 Cache. The integrated graphics unit is the Intel UHD Graphics 630. It scores with a higher core count and architectural improvements.

In terms of computing performance, the Intel Core i5-10400 surpasses the Intel Core i7-7700K in newer single-core benchmarks and significantly in multi-core applications. For gaming, the Intel Core i5-10400 generally delivers better performance, especially in modern titles.

The Intel Core i7-7700K is still competitive in older games but quickly reaches its limits in new titles. Regarding power consumption, the Intel Core i5-10400 is more efficient in standard operation. On the used market, the Intel Core i5-10400 offers a more advantageous price-performance ratio due to its newer platform and better overall performance.

In summary, the Intel Core i5-10400 is the recommended choice for most modern applications and gaming. The Intel Core i7-7700K is more suitable for users who already own a compatible LGA1151 system and benefit from high clock speeds.