Core i5-8400 vs Core i5-9400F: which is better
Intel Core i5-8400 (desktop, 2017) against Intel Core i5-9400F (desktop, 2019): benchmarks, games, specs and current prices.
Key differences
- Core i5-9400F is 2% faster in multi-threaded work (PassMark 9,463 vs 9,235).
- Core i5-9400F is 2% faster per core.
- Core i5-8400 is $38 cheaper ($79 vs $117).
- Core i5-8400 gives 45% more performance per dollar.
- Both use socket LGA1151 v2 and fit the same motherboards (with a suitable BIOS).
| Core i5-8400 | Core i5-9400F | |
|---|---|---|
| Overall score | 12.8 | 13.1 |
| PassMark CPU Mark | 9,235 | 9,463 |
| Single-thread rating | 2,364 | 2,421 |
| US price | from $79 | from $117 |
| Cores | 6 | 6 |
| Threads | 6 | 6 |
| Base clock | 2.8 GHz | 2.9 GHz |
| Max boost | 4.0 GHz | 4.1 GHz |
| L3 cache | 9 MB | 9 MB |
| TDP | 65 W | 65 W |
| Max power | 65 W | 65 W |
| Memory | DDR4 | DDR4 |
| Memory speed | 2666 MT/s | 2666 MT/s |
| PCI Express | PCIe 3.0 | PCIe 3.0 |
| Socket | LGA1151 v2 | LGA1151 v2 |
| Process | 14 nm (Intel) | 14 nm (Intel) |
| Architecture | Coffee Lake | Coffee Lake Refresh |
| Series | 8th Gen Core | 9th Gen Core |
| Release year | 2017 | 2019 |
| Integrated graphics | UHD Graphics 630 | none |