AMD Ryzen 9 3900X vs Intel Core i5-11400
37.6Single-core38.6
54.2Multi-core36.5
78.3Gaming36.7
13 spec wins — AMD Ryzen 9 3900X5 spec wins — Intel Core i5-11400
InnoReviews verdict
AMD Ryzen 9 3900X wins this desktop processor face-off, 55.3 to 37.2, pulling ahead mainly in gaming (+42) and Multi-core (+18). Intel Core i5-11400 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 9 3900X
- Stronger Multi-core score: 54 vs 37
- Stronger gaming score: 78 vs 37
- 433% higher L3 cache: 64 MB vs 12 MB
- 100% higher cores: 12 vs 6
- 100% higher Performance cores: 12 vs 6
Reasons to pick the Intel Core i5-11400
- 38% lower Base TDP: 65 W vs 105 W
- Lower launch price: $182 vs $499
General
| Spec | AMD Ryzen 9 3900X | Intel Core i5-11400 |
|---|---|---|
| Announced | 2019 | 2021 |
| Socket | AM4 | LGA1200 |
| Process | 7 nm+50% | 14 nm |
| Base TDP | 105 W | 65 W+38% |
| Max turbo power | 142 W | 154 W+8% |
| Unlocked multiplier | Yes | No |
| Cooler included | Yes | Yes |
Cores & Clocks
| Spec | AMD Ryzen 9 3900X | Intel Core i5-11400 |
|---|---|---|
| Cores | 12+100% | 6 |
| Performance cores | 12+100% | 6 |
| Efficiency cores | 0 | 0 |
| Threads | 24+100% | 12 |
| Base clock | 3.8 GHz+46% | 2.6 GHz |
| Boost clock | 4.6 GHz+5% | 4.4 GHz |
| L2 cache | 6 MB+100% | 3 MB |
| L3 cache | 64 MB+433% | 12 MB |
Integrated GPU
| Spec | AMD Ryzen 9 3900X | Intel Core i5-11400 |
|---|---|---|
| iGPU | — | Intel UHD Graphics 730 |
| iGPU clock | — | 1,300 MHz |
Memory
| Spec | AMD Ryzen 9 3900X | Intel Core i5-11400 |
|---|---|---|
| Memory support | DDR4-3200 | DDR4-3200 |
| Max memory | 128 GB | 128 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 9 3900X | Intel Core i5-11400 |
|---|---|---|
| PCIe version | 4 | 4 |
| CPU PCIe lanes | 24+20% | 20 |
Benchmarks
| Spec | AMD Ryzen 9 3900X | Intel Core i5-11400 |
|---|---|---|
| Geekbench 6 (single) | 1,540Top 63% | 1,560+1%Top 58% |
| Geekbench 6 (multi) | 11,000+75%Top 35% | 6,300Top 66% |
| Cinebench R23 (single) | 1,300Top 59% | 1,330+2%Top 54% |
| Cinebench R23 (multi) | 18,300+79%Top 24% | 10,200Top 55% |
| PassMark | 32,600+92%Top 26% | 17,000Top 58% |
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