AMD Ryzen 7 5800X vs Intel Core i5-8400
53Single-core31.1
50Multi-core28.6
62.2Gamingspec-based27.2
18 spec wins — AMD Ryzen 7 5800X2 spec wins — Intel Core i5-8400
InnoReviews verdict
AMD Ryzen 7 5800X wins this desktop processor face-off, 54 to 29, pulling ahead mainly in single-core (+22) and multi-core (+21). 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 AMD Ryzen 7 5800X
- Stronger single-core score: 53 vs 31
- Stronger multi-core score: 50 vs 29
- 256% higher L3 cache: 32 MB vs 9 MB
- 208% higher PassMark: 28,300 vs 9,200
- 167% higher threads: 16 vs 6
Reasons to pick the Intel Core i5-8400
- 38% lower Base TDP: 65 W vs 105 W
- Has Cooler included — the other doesn't
- Lower launch price: $182 vs $449
General
| Spec | AMD Ryzen 7 5800X | Intel Core i5-8400 |
|---|---|---|
| Announced | 2020 | 2017 |
| Socket | AM4 | LGA1151-v2 |
| Process | 7 nm+50% | 14 nm |
| Base TDP | 105 W | 65 W+38% |
| Max turbo power | 142 W | — |
| Unlocked multiplier | Yes | No |
| Cooler included | No | Yes |
Cores & Clocks
| Spec | AMD Ryzen 7 5800X | Intel Core i5-8400 |
|---|---|---|
| Cores | 8+33% | 6 |
| Performance cores | 8+33% | 6 |
| Efficiency cores | 0 | 0 |
| Threads | 16+167% | 6 |
| Base clock | 3.8 GHz+36% | 2.8 GHz |
| Boost clock | 4.7 GHz+18% | 4 GHz |
| L2 cache | 4 MB+167% | 2 MB |
| L3 cache | 32 MB+256% | 9 MB |
Integrated GPU
| Spec | AMD Ryzen 7 5800X | Intel Core i5-8400 |
|---|---|---|
| iGPU | — | Intel UHD Graphics 630 |
| iGPU clock | — | 1,050 MHz |
Memory
| Spec | AMD Ryzen 7 5800X | Intel Core i5-8400 |
|---|---|---|
| Memory support | DDR4-3200 | DDR4-2666 |
| Max memory | 128 GB+100% | 64 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 7 5800X | Intel Core i5-8400 |
|---|---|---|
| PCIe version | 4+33% | 3 |
| CPU PCIe lanes | 24+50% | 16 |
Benchmarks
| Spec | AMD Ryzen 7 5800X | Intel Core i5-8400 |
|---|---|---|
| Geekbench 6 (single) | 2,050+50%Top 49% | 1,370Bottom 22% |
| Geekbench 6 (multi) | 11,300+131%Top 44% | 4,900Bottom 19% |
| Cinebench R23 (single) | 1,580+37%Bottom 49% | 1,150Bottom 22% |
| Cinebench R23 (multi) | 15,300+139%Top 44% | 6,400Bottom 19% |
| PassMark | 28,300+208%Top 43% | 9,200Bottom 14% |
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