AMD Ryzen 7 8700F vs AMD Ryzen 9 3900X
67.4Single-core37.7
54.5Multi-core55.1
47.4Gamingspec-based78.3
8 spec wins — AMD Ryzen 7 8700F5 spec wins — AMD Ryzen 9 3900X
InnoReviews verdict
This one is close to a dead heat: AMD Ryzen 7 8700F scores 56.6 against 55.7 for AMD Ryzen 9 3900X. Pick by the categories that matter to you — AMD Ryzen 7 8700F edges ahead in single-core, or by price.
Which would you pick?
Key differences
Reasons to pick the AMD Ryzen 7 8700F
- Stronger single-core score: 67 vs 38
- 100% higher Max memory: 256 GB vs 128 GB
- 43% lower process: 4 nm vs 7 nm
- 43% higher PassMark (single thread): 3,871 vs 2,702
- 38% lower Base TDP: 65 W vs 105 W
Reasons to pick the AMD Ryzen 9 3900X
- 300% higher L3 cache: 64 MB vs 16 MB
- 50% higher cores: 12 vs 8
- 50% higher threads: 24 vs 16
- 50% higher CPU PCIe lanes: 24 vs 16
General
| Spec | AMD Ryzen 7 8700F | AMD Ryzen 9 3900X |
|---|---|---|
| Announced | 2024 | 2019 |
| Socket | AM5 | AM4 |
| Process | 4 nm+43% | 7 nm |
| Base TDP | 65 W+38% | 105 W |
| Max turbo power | — | 142 W |
| Unlocked multiplier | Yes | Yes |
| Cooler included | — | Yes |
Cores & Clocks
| Spec | AMD Ryzen 7 8700F | AMD Ryzen 9 3900X |
|---|---|---|
| Cores | 8 | 12+50% |
| Performance cores | — | 12 |
| Efficiency cores | — | 0 |
| Threads | 16 | 24+50% |
| Base clock | 4.1 GHz+8% | 3.8 GHz |
| Boost clock | 5 GHz+9% | 4.6 GHz |
| L2 cache | 8 MB+33% | 6 MB |
| L3 cache | 16 MB | 64 MB+300% |
Memory
| Spec | AMD Ryzen 7 8700F | AMD Ryzen 9 3900X |
|---|---|---|
| Memory support | DDR5-5200 | DDR4-3200 |
| Max memory | 256 GB+100% | 128 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 7 8700F | AMD Ryzen 9 3900X |
|---|---|---|
| PCIe version | 4 | 4 |
| CPU PCIe lanes | 16 | 24+50% |
Benchmarks
| Spec | AMD Ryzen 7 8700F | AMD Ryzen 9 3900X |
|---|---|---|
| Cinebench R23 (multi) | — | 18,300Top 36% |
| PassMark | 30,843Top 33% | 32,465+5%Top 31% |
| PassMark (single thread) | 3,871+43%Top 33% | 2,702Bottom 30% |
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