Core i5-9400F vs Core i7-7700K: which is better
Intel Core i5-9400F (desktop, 2019) against Intel Core i7-7700K (desktop, 2017): benchmarks, games, specs and current prices.
Key differences
- Core i7-7700K is 2% faster in multi-threaded work (PassMark 9,633 vs 9,463).
- Core i7-7700K is 11% faster per core.
- Core i7-7700K is $8 cheaper ($109 vs $117).
- Core i7-7700K gives 9% more performance per dollar.
- Core i5-9400F has a lower TDP: 65 W vs 91 W.
- Different sockets (LGA1151 v2 and LGA1151): they need different motherboards.
| Core i5-9400F | Core i7-7700K | |
|---|---|---|
| Overall score | 13.1 | 13.4 |
| PassMark CPU Mark | 9,463 | 9,633 |
| Single-thread rating | 2,421 | 2,699 |
| US price | from $117 | from $109 |
| Cores | 6 | 4 |
| Threads | 6 | 8 |
| Base clock | 2.9 GHz | 4.2 GHz |
| Max boost | 4.1 GHz | 4.5 GHz |
| L3 cache | 9 MB | 8 MB |
| TDP | 65 W | 91 W |
| Max power | 65 W | 91 W |
| Memory | DDR4 | DDR4 / DDR3L |
| Memory speed | 2666 MT/s | 2400 MT/s |
| PCI Express | PCIe 3.0 | PCIe 3.0 |
| Socket | LGA1151 v2 | LGA1151 |
| Process | 14 nm (Intel) | 14 nm (Intel) |
| Architecture | Coffee Lake Refresh | Kaby Lake |
| Series | 9th Gen Core | 7th Gen Core |
| Release year | 2019 | 2017 |
| Integrated graphics | none | HD Graphics 630 |