AMD Ryzen 7 7700X vs AMD Ryzen 9 3900X
74.9Single-core37.6
61.2Multi-core54.2
66.6Gaming78.3
12 spec wins — AMD Ryzen 7 7700X5 spec wins — AMD Ryzen 9 3900X
InnoReviews verdict
AMD Ryzen 7 7700X wins this desktop processor face-off, 66.6 to 55.3, pulling ahead mainly in Single-core (+37) and Multi-core (+7). AMD Ryzen 9 3900X still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the AMD Ryzen 7 7700X
- Stronger Single-core score: 75 vs 38
- Stronger Multi-core score: 61 vs 54
- 81% higher Geekbench 6 (single): 2,780 vs 1,540
- 52% higher Cinebench R23 (single): 1,970 vs 1,300
- 45% higher Geekbench 6 (multi): 16,000 vs 11,000
- Lower launch price: $399 vs $499
Reasons to pick the AMD Ryzen 9 3900X
- Stronger gaming score: 78 vs 67
- 100% higher L3 cache: 64 MB vs 32 MB
- 50% higher cores: 12 vs 8
- 50% higher Performance cores: 12 vs 8
- 50% higher threads: 24 vs 16
General
| Spec | AMD Ryzen 7 7700X | AMD Ryzen 9 3900X |
|---|---|---|
| Announced | 2022 | 2019 |
| Socket | AM5 | AM4 |
| Process | 5 nm+29% | 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 7700X | AMD Ryzen 9 3900X |
|---|---|---|
| Cores | 8 | 12+50% |
| Performance cores | 8 | 12+50% |
| Efficiency cores | 0 | 0 |
| Threads | 16 | 24+50% |
| Base clock | 4.5 GHz+18% | 3.8 GHz |
| Boost clock | 5.4 GHz+17% | 4.6 GHz |
| L2 cache | 8 MB+33% | 6 MB |
| L3 cache | 32 MB | 64 MB+100% |
Integrated GPU
| Spec | AMD Ryzen 7 7700X | AMD Ryzen 9 3900X |
|---|---|---|
| iGPU | AMD Radeon Graphics (2 CU RDNA 2) | — |
| iGPU clock | 2,200 MHz | — |
Memory
| Spec | AMD Ryzen 7 7700X | AMD Ryzen 9 3900X |
|---|---|---|
| Memory support | DDR5-5200 | DDR4-3200 |
| Max memory | 128 GB | 128 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 7 7700X | AMD Ryzen 9 3900X |
|---|---|---|
| PCIe version | 5+25% | 4 |
| CPU PCIe lanes | 28+17% | 24 |
Benchmarks
| Spec | AMD Ryzen 7 7700X | AMD Ryzen 9 3900X |
|---|---|---|
| Geekbench 6 (single) | 2,780+81%Top 17% | 1,540Top 63% |
| Geekbench 6 (multi) | 16,000+45%Top 16% | 11,000Top 35% |
| Cinebench R23 (single) | 1,970+52%Top 19% | 1,300Top 59% |
| Cinebench R23 (multi) | 19,500+7%Top 21% | 18,300Top 24% |
| PassMark | 36,500+12%Top 22% | 32,600Top 26% |
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