Intel Core i5-8400 vs Intel Core i5-9400
30.5Single-core30.3
28.8Multi-core27.5
27.2Gamingspec-based27.8
0 spec wins — Intel Core i5-84006 spec wins — Intel Core i5-9400
InnoReviews verdict
This one is close to a dead heat: Intel Core i5-8400 scores 28.9 against 28.4 for Intel Core i5-9400. Pick by the categories that matter to you — Intel Core i5-8400 edges ahead in multi-core and single-core, or by price.
Which would you pick?
Key differences
Reasons to pick the Intel Core i5-8400
No decisive spec advantages — this side competes on price and preference.
Reasons to pick the Intel Core i5-9400
- 100% higher Max memory: 128 GB vs 64 GB
General
| Spec | Intel Core i5-8400 | Intel Core i5-9400 |
|---|---|---|
| Announced | 2017 | 2019 |
| Socket | LGA1151-v2 | LGA1151 |
| Process | 14 nm | 14 nm |
| Base TDP | 65 W | 65 W |
| Unlocked multiplier | No | No |
| Cooler included | Yes | Yes |
Cores & Clocks
| Spec | Intel Core i5-8400 | Intel Core i5-9400 |
|---|---|---|
| Cores | 6 | 6 |
| Performance cores | 6 | — |
| Efficiency cores | 0 | — |
| Threads | 6 | 6 |
| Base clock | 2.8 GHz | 2.9 GHz+4% |
| Boost clock | 4 GHz | 4.1 GHz+2% |
| L2 cache | 1.5 MB | 1.5 MB |
| L3 cache | 9 MB | 9 MB |
Integrated GPU
| Spec | Intel Core i5-8400 | Intel Core i5-9400 |
|---|---|---|
| iGPU | Intel UHD Graphics 630 | Intel UHD Graphics 630 |
| iGPU clock | 1,050 MHz | 1,050 MHz |
Memory
| Spec | Intel Core i5-8400 | Intel Core i5-9400 |
|---|---|---|
| Memory support | DDR4-2666 | DDR4-2666 |
| Max memory | 64 GB | 128 GB+100% |
| Memory channels | 2 | 2 |
Platform
| Spec | Intel Core i5-8400 | Intel Core i5-9400 |
|---|---|---|
| PCIe version | 3 | 3 |
| CPU PCIe lanes | 16 | 16 |
Benchmarks
| Spec | Intel Core i5-8400 | Intel Core i5-9400 |
|---|---|---|
| Cinebench R23 (single) | 1,150Bottom 21% | — |
| Cinebench R23 (multi) | 6,400Bottom 14% | — |
| PassMark | 9,235Bottom 15% | 9,350+1%Bottom 15% |
| PassMark (single thread) | 2,364Bottom 15% | 2,412+2%Bottom 16% |
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