Intel Core i5-4570 vs Intel Core i5-6400

The Intel Core i5-4570 (Haswell S-architecture) and the Intel Core i5-6400 (Skylake S-architecture) are mainstream desktop processors for everyday tasks.

The Intel Core i5-4570 was manufactured using a 22nm process, while the Intel Core i5-6400 was manufactured using a 14nm process. Both CPUs have 4 cores, 4 threads, PCIe 3.0, and 6 MB of Level 3 cache. The Intel Core i5-6400 achieves a higher maximum memory bandwidth of 34 GB/s compared to the Intel Core i5-4570's 26 GB/s.

In single-core and multi-core performance, both processors are comparable, as benchmark differences are under 10 percent. They are only conditionally suitable for gaming. The Intel Core i5-4570 uses Intel HD Graphics 4600, while the Intel Core i5-6400 uses Intel HD Graphics 530.

The latter is marginally better, but modern games require a dedicated graphics card. The Intel Core i5-6400's 14nm manufacturing process ensures higher energy efficiency and lower heat generation. On the used market, the Intel Core i5-6400 might offer a better price-performance ratio due to its more modern architecture.

The Intel Core i5-6400 offers slight advantages in energy efficiency and integrated graphics. With similar core performance, both are sufficient for basic tasks; the Intel Core i5-6400 is the preferred choice at comparable used market prices.