Core i5-7400 vs Core i7-2600K: which is better
Intel Core i5-7400 (desktop, 2017) against Intel Core i7-2600K (desktop, 2011): benchmarks, games, specs and current prices.
Key differences
- Core i5-7400 is 0% faster in multi-threaded work (PassMark 5,482 vs 5,475).
- Core i5-7400 is 19% faster per core.
- Core i5-7400 is $17 cheaper ($67 vs $84).
- Core i5-7400 gives 26% more performance per dollar.
- Core i5-7400 has a lower TDP: 65 W vs 95 W.
- Different sockets (LGA1151 and LGA1155): they need different motherboards.
| Core i5-7400 | Core i7-2600K | |
|---|---|---|
| Overall score | 7.6 | 7.6 |
| PassMark CPU Mark | 5,482 | 5,475 |
| Single-thread rating | 2,067 | 1,740 |
| US price | from $67 | from $84 |
| Cores | 4 | 4 |
| Threads | 4 | 8 |
| Base clock | 3.0 GHz | 3.4 GHz |
| Max boost | 3.5 GHz | 3.8 GHz |
| L3 cache | 6 MB | 8 MB |
| TDP | 65 W | 95 W |
| Max power | 65 W | 95 W |
| Memory | DDR4 / DDR3L | DDR3 |
| Memory speed | 2400 MT/s | 1333 MT/s |
| PCI Express | PCIe 3.0 | PCIe 2.0 |
| Socket | LGA1151 | LGA1155 |
| Process | 14 nm (Intel) | 32 nm (Intel) |
| Architecture | Kaby Lake | Sandy Bridge |
| Series | 7th Gen Core | 2nd Gen Core |
| Release year | 2017 | 2011 |
| Integrated graphics | HD Graphics 630 | HD Graphics 3000 |