AMD Ryzen 7 5800XT vs AMD Ryzen 9 3900X
—Single-core37.6
51Multi-core54.2
62.8Gamingspec-based78.3
2 spec wins — AMD Ryzen 7 5800XT6 spec wins — AMD Ryzen 9 3900X
InnoReviews verdict
No overall winner yet: AMD Ryzen 7 5800XT lacks the published benchmark results an Inno Score requires, so there is no Inno Score to compare — we don't rank chips on their spec sheet alone. The spec table below still shows every difference we track.
Which would you pick?
Key differences
Reasons to pick the AMD Ryzen 7 5800XT
No decisive spec advantages — this side competes on price and preference.
Reasons to pick the AMD Ryzen 9 3900X
- Stronger multi-core score: 54 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 |
|---|---|---|
| Geekbench 6 (single) | — | 1,540Bottom 33% |
| Geekbench 6 (multi) | — | 11,000Top 46% |
| Cinebench R23 (single) | — | 1,300Bottom 34% |
| Cinebench R23 (multi) | — | 18,300Top 31% |
| PassMark | 28,022Top 46% | 32,600+16%Top 37% |
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