AMD Ryzen 7 5800X3D vs AMD Ryzen 9 3900XT
47.9Single-core38.7
48.3Multi-core56.5
87.5Gamingspec-based79
3 spec wins — AMD Ryzen 7 5800X3D7 spec wins — AMD Ryzen 9 3900XT
InnoReviews verdict
This one is close to a dead heat: AMD Ryzen 7 5800X3D scores 58 against 56.8 for AMD Ryzen 9 3900XT. Pick by the categories that matter to you — AMD Ryzen 7 5800X3D edges ahead in single-core, or by price.
Which would you pick?
Key differences
Reasons to pick the AMD Ryzen 7 5800X3D
- Stronger single-core score: 48 vs 39
- 50% higher L3 cache: 96 MB vs 64 MB
- 18% higher PassMark (single thread): 3,233 vs 2,742
- Lower launch price: $449 vs $499
Reasons to pick the AMD Ryzen 9 3900XT
- Stronger multi-core score: 57 vs 48
- 50% higher cores: 12 vs 8
- 50% higher threads: 24 vs 16
- 50% higher L2 cache: 6 MB vs 4 MB
- 15% higher PassMark: 32,456 vs 28,284
General
| Spec | AMD Ryzen 7 5800X3D | AMD Ryzen 9 3900XT |
|---|---|---|
| Announced | 2022 | 2020 |
| Socket | AM4 | AM4 |
| Process | 7 nm | 7 nm |
| Base TDP | 105 W | 105 W |
| Max turbo power | 142 W | — |
| Unlocked multiplier | No | Yes |
| Cooler included | No | No |
Cores & Clocks
| Spec | AMD Ryzen 7 5800X3D | AMD Ryzen 9 3900XT |
|---|---|---|
| Cores | 8 | 12+50% |
| Performance cores | 8 | — |
| Efficiency cores | 0 | — |
| Threads | 16 | 24+50% |
| Base clock | 3.4 GHz | 3.8 GHz+12% |
| Boost clock | 4.5 GHz | 4.7 GHz+4% |
| L2 cache | 4 MB | 6 MB+50% |
| L3 cache | 96 MB+50% | 64 MB |
Memory
| Spec | AMD Ryzen 7 5800X3D | AMD Ryzen 9 3900XT |
|---|---|---|
| Memory support | DDR4-3200 | DDR4-3200 |
| Max memory | 128 GB | — |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 7 5800X3D | AMD Ryzen 9 3900XT |
|---|---|---|
| PCIe version | 4 | 4 |
| CPU PCIe lanes | 24 | — |
Benchmarks
| Spec | AMD Ryzen 7 5800X3D | AMD Ryzen 9 3900XT |
|---|---|---|
| Geekbench 6 (single) | 1,900Bottom 49% | — |
| Geekbench 6 (multi) | 10,500Top 47% | — |
| Cinebench R23 (single) | 1,470Bottom 38% | — |
| Cinebench R23 (multi) | 14,200Bottom 49% | — |
| PassMark | 28,284Top 37% | 32,456+15%Top 32% |
| PassMark (single thread) | 3,233+18%Bottom 46% | 2,742Bottom 33% |
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