Intel Core i5-10400 vs Intel Core i5-8400
30.4Single-core31.1
32.2Multi-core28.6
36Gaming27.2
11 spec wins — Intel Core i5-104001 spec wins — Intel Core i5-8400
InnoReviews verdict
Intel Core i5-10400 wins this desktop processor face-off, 32.6 to 29, pulling ahead mainly in gaming (+9) and Multi-core (+4). Intel Core i5-8400 still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Intel Core i5-10400
- Stronger Multi-core score: 32 vs 29
- Stronger gaming score: 36 vs 27
- 100% higher threads: 12 vs 6
- 100% higher Max memory: 128 GB vs 64 GB
- 37% higher PassMark: 12,600 vs 9,200
Reasons to pick the Intel Core i5-8400
No decisive spec advantages — this side competes on price and preference.
General
| Spec | Intel Core i5-10400 | Intel Core i5-8400 |
|---|---|---|
| Announced | 2020 | 2017 |
| Socket | LGA1200 | LGA1151-v2 |
| Process | 14 nm | 14 nm |
| Base TDP | 65 W | 65 W |
| Max turbo power | 134 W | — |
| Unlocked multiplier | No | No |
| Cooler included | Yes | Yes |
Cores & Clocks
| Spec | Intel Core i5-10400 | Intel Core i5-8400 |
|---|---|---|
| Cores | 6 | 6 |
| Performance cores | 6 | 6 |
| Efficiency cores | 0 | 0 |
| Threads | 12+100% | 6 |
| Base clock | 2.9 GHz+4% | 2.8 GHz |
| Boost clock | 4.3 GHz+7% | 4 GHz |
| L2 cache | 2 MB | 2 MB |
| L3 cache | 12 MB+33% | 9 MB |
Integrated GPU
| Spec | Intel Core i5-10400 | Intel Core i5-8400 |
|---|---|---|
| iGPU | Intel UHD Graphics 630 | Intel UHD Graphics 630 |
| iGPU clock | 1,100 MHz+5% | 1,050 MHz |
Memory
| Spec | Intel Core i5-10400 | Intel Core i5-8400 |
|---|---|---|
| Memory support | DDR4-2666 | DDR4-2666 |
| Max memory | 128 GB+100% | 64 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | Intel Core i5-10400 | Intel Core i5-8400 |
|---|---|---|
| PCIe version | 3 | 3 |
| CPU PCIe lanes | 16 | 16 |
Benchmarks
| Spec | Intel Core i5-10400 | Intel Core i5-8400 |
|---|---|---|
| Geekbench 6 (single) | 1,390+1%Top 73% | 1,370Top 75% |
| Geekbench 6 (multi) | 5,800+18%Top 70% | 4,900Top 78% |
| Cinebench R23 (single) | 1,100Top 80% | 1,150+5%Top 75% |
| Cinebench R23 (multi) | 8,000+25%Top 71% | 6,400Top 77% |
| PassMark | 12,600+37%Top 73% | 9,200Top 80% |
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