AMD Ryzen 7 5800XT vs AMD Ryzen 9 3900X
58.8Single-core37.7
51Multi-core55.1
62.8Gamingspec-based78.3
3 spec wins — AMD Ryzen 7 5800XT6 spec wins — AMD Ryzen 9 3900X
InnoReviews verdict
This one is close to a dead heat: AMD Ryzen 7 5800XT scores 56.3 against 55.7 for AMD Ryzen 9 3900X. Pick by the categories that matter to you — AMD Ryzen 7 5800XT edges ahead in single-core, or by price.
Which would you pick?
Key differences
Reasons to pick the AMD Ryzen 7 5800XT
- Stronger single-core score: 59 vs 38
- 31% higher PassMark (single thread): 3,532 vs 2,702
Reasons to pick the AMD Ryzen 9 3900X
- Stronger multi-core score: 55 vs 51
- 100% higher L3 cache: 64 MB vs 32 MB
- 50% higher cores: 12 vs 8
- 50% higher threads: 24 vs 16
- 50% higher L2 cache: 6 MB vs 4 MB
General
| Spec | AMD Ryzen 7 5800XT | AMD Ryzen 9 3900X |
|---|---|---|
| Announced | 2024 | 2019 |
| Socket | AM4 | AM4 |
| Process | 7 nm | 7 nm |
| Base TDP | 105 W | 105 W |
| Max turbo power | — | 142 W |
| Unlocked multiplier | Yes | Yes |
| Cooler included | Yes | Yes |
Cores & Clocks
| Spec | AMD Ryzen 7 5800XT | AMD Ryzen 9 3900X |
|---|---|---|
| Cores | 8 | 12+50% |
| Performance cores | — | 12 |
| Efficiency cores | — | 0 |
| Threads | 16 | 24+50% |
| Base clock | 3.8 GHz | 3.8 GHz |
| Boost clock | 4.8 GHz+4% | 4.6 GHz |
| L2 cache | 4 MB | 6 MB+50% |
| L3 cache | 32 MB | 64 MB+100% |
Memory
| Spec | AMD Ryzen 7 5800XT | 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 5800XT | AMD Ryzen 9 3900X |
|---|---|---|
| PCIe version | 4 | 4 |
| CPU PCIe lanes | 20 | 24+20% |
Benchmarks
| Spec | AMD Ryzen 7 5800XT | AMD Ryzen 9 3900X |
|---|---|---|
| Cinebench R23 (multi) | — | 18,300Top 36% |
| PassMark | 28,022Top 38% | 32,465+16%Top 31% |
| PassMark (single thread) | 3,532+31%Top 42% | 2,702Bottom 30% |
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