AMD Ryzen 7 5800X vs AMD Ryzen 9 3900X
53Single-core37.6
50Multi-core54.2
62.2Gaming78.3
5 spec wins — AMD Ryzen 7 5800X8 spec wins — AMD Ryzen 9 3900X
InnoReviews verdict
This one is close to a dead heat: AMD Ryzen 7 5800X scores 54 against 55.3 for AMD Ryzen 9 3900X. Pick by the categories that matter to you — AMD Ryzen 9 3900X edges ahead in gaming and Multi-core, or by price.
Which would you pick?
Key differences
Reasons to pick the AMD Ryzen 7 5800X
- Stronger Single-core score: 53 vs 38
- 33% higher Geekbench 6 (single): 2,050 vs 1,540
- 22% higher Cinebench R23 (single): 1,580 vs 1,300
- Lower launch price: $449 vs $499
Reasons to pick the AMD Ryzen 9 3900X
- Stronger Multi-core score: 54 vs 50
- Stronger gaming score: 78 vs 62
- 100% higher L3 cache: 64 MB vs 32 MB
- 50% higher cores: 12 vs 8
- 50% higher Performance cores: 12 vs 8
General
| Spec | AMD Ryzen 7 5800X | AMD Ryzen 9 3900X |
|---|---|---|
| Announced | 2020 | 2019 |
| Socket | AM4 | AM4 |
| Process | 7 nm | 7 nm |
| Base TDP | 105 W | 105 W |
| Max turbo power | 142 W | 142 W |
| Unlocked multiplier | Yes | Yes |
| Cooler included | No | Yes |
Cores & Clocks
| Spec | AMD Ryzen 7 5800X | AMD Ryzen 9 3900X |
|---|---|---|
| Cores | 8 | 12+50% |
| Performance cores | 8 | 12+50% |
| Efficiency cores | 0 | 0 |
| Threads | 16 | 24+50% |
| Base clock | 3.8 GHz | 3.8 GHz |
| Boost clock | 4.7 GHz+2% | 4.6 GHz |
| L2 cache | 4 MB | 6 MB+50% |
| L3 cache | 32 MB | 64 MB+100% |
Memory
| Spec | AMD Ryzen 7 5800X | AMD Ryzen 9 3900X |
|---|---|---|
| Memory support | DDR4-3200 | DDR4-3200 |
| Max memory | 128 GB | 128 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 7 5800X | AMD Ryzen 9 3900X |
|---|---|---|
| PCIe version | 4 | 4 |
| CPU PCIe lanes | 24 | 24 |
Benchmarks
| Spec | AMD Ryzen 7 5800X | AMD Ryzen 9 3900X |
|---|---|---|
| Geekbench 6 (single) | 2,050+33% | 1,540 |
| Geekbench 6 (multi) | 11,300+3% | 11,000 |
| Cinebench R23 (single) | 1,580+22% | 1,300 |
| Cinebench R23 (multi) | 15,300 | 18,300+20% |
| PassMark | 28,300 | 32,600+15% |
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