AMD Ryzen 9 3950X vs AMD Ryzen 9 7900
38.6Single-core78.6
64.6Multi-core70.5
79Gamingspec-based83.3
3 spec wins — AMD Ryzen 9 3950X13 spec wins — AMD Ryzen 9 7900
InnoReviews verdict
AMD Ryzen 9 7900 wins this desktop processor face-off, 76.1 to 60.4, pulling ahead mainly in single-core (+40) and multi-core (+6). AMD Ryzen 9 3950X 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 9 3950X
- 33% higher cores: 16 vs 12
- 33% higher Performance cores: 16 vs 12
- 33% higher threads: 32 vs 24
Reasons to pick the AMD Ryzen 9 7900
- Stronger single-core score: 79 vs 39
- Stronger multi-core score: 71 vs 65
- 90% higher Geekbench 6 (single): 2,990 vs 1,570
- 50% higher L2 cache: 12 MB vs 8 MB
- 49% higher Cinebench R23 (single): 1,966 vs 1,320
- Lower launch price: $429 vs $749
General
| Spec | AMD Ryzen 9 3950X | AMD Ryzen 9 7900 |
|---|---|---|
| Announced | 2019 | 2023 |
| Socket | AM4 | AM5 |
| Process | 7 nm | 5 nm+29% |
| Base TDP | 105 W | 65 W+38% |
| Max turbo power | 142 W | — |
| Unlocked multiplier | Yes | Yes |
| Cooler included | No | No |
Cores & Clocks
| Spec | AMD Ryzen 9 3950X | AMD Ryzen 9 7900 |
|---|---|---|
| Cores | 16+33% | 12 |
| Performance cores | 16+33% | 12 |
| Efficiency cores | 0 | 0 |
| Threads | 32+33% | 24 |
| Base clock | 3.5 GHz | 3.7 GHz+6% |
| Boost clock | 4.7 GHz | 5.4 GHz+15% |
| L2 cache | 8 MB | 12 MB+50% |
| L3 cache | 64 MB | 64 MB |
Integrated GPU
| Spec | AMD Ryzen 9 3950X | AMD Ryzen 9 7900 |
|---|---|---|
| iGPU | — | AMD Radeon Graphics |
| iGPU clock | — | 2,200 MHz |
Memory
| Spec | AMD Ryzen 9 3950X | AMD Ryzen 9 7900 |
|---|---|---|
| Memory support | DDR4-3200 | DDR5-5200 |
| Max memory | 128 GB | 128 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 9 3950X | AMD Ryzen 9 7900 |
|---|---|---|
| PCIe version | 4 | 5+25% |
| CPU PCIe lanes | 24 | 28+17% |
Benchmarks
| Spec | AMD Ryzen 9 3950X | AMD Ryzen 9 7900 |
|---|---|---|
| Geekbench 6 (single) | 1,570Bottom 37% | 2,990+90%Top 19% |
| Geekbench 6 (multi) | 13,300Top 39% | 15,725+18%Top 28% |
| Cinebench R23 (single) | 1,320Bottom 36% | 1,966+49%Top 26% |
| Cinebench R23 (multi) | 24,700Top 22% | 24,776Top 21% |
| PassMark | 39,000Top 27% | 48,013+23%Top 20% |
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