AMD Ryzen 9 3900X vs AMD Ryzen 9 3950X
37.6Single-core38.6
54.2Multi-core64.6
78.3Gaming79
2 spec wins — AMD Ryzen 9 3900X10 spec wins — AMD Ryzen 9 3950X
InnoReviews verdict
AMD Ryzen 9 3950X wins this desktop processor face-off, 60.4 to 55.3, pulling ahead mainly in Multi-core (+10) and Single-core (+1). 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 9 3900X
- Has Cooler included — the other doesn't
- Lower launch price: $499 vs $749
Reasons to pick the AMD Ryzen 9 3950X
- Stronger Multi-core score: 65 vs 54
- 35% higher Cinebench R23 (multi): 24,700 vs 18,300
- 33% higher cores: 16 vs 12
- 33% higher Performance cores: 16 vs 12
- 33% higher threads: 32 vs 24
General
| Spec | AMD Ryzen 9 3900X | AMD Ryzen 9 3950X |
|---|---|---|
| Announced | 2019 | 2019 |
| Socket | AM4 | AM4 |
| Process | 7 nm | 7 nm |
| Base TDP | 105 W | 105 W |
| Max turbo power | 142 W | 142 W |
| Unlocked multiplier | Yes | Yes |
| Cooler included | Yes | No |
Cores & Clocks
| Spec | AMD Ryzen 9 3900X | AMD Ryzen 9 3950X |
|---|---|---|
| Cores | 12 | 16+33% |
| Performance cores | 12 | 16+33% |
| Efficiency cores | 0 | 0 |
| Threads | 24 | 32+33% |
| Base clock | 3.8 GHz+9% | 3.5 GHz |
| Boost clock | 4.6 GHz | 4.7 GHz+2% |
| L2 cache | 6 MB | 8 MB+33% |
| L3 cache | 64 MB | 64 MB |
Memory
| Spec | AMD Ryzen 9 3900X | AMD Ryzen 9 3950X |
|---|---|---|
| Memory support | DDR4-3200 | DDR4-3200 |
| Max memory | 128 GB | 128 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 9 3900X | AMD Ryzen 9 3950X |
|---|---|---|
| PCIe version | 4 | 4 |
| CPU PCIe lanes | 24 | 24 |
Benchmarks
| Spec | AMD Ryzen 9 3900X | AMD Ryzen 9 3950X |
|---|---|---|
| Geekbench 6 (single) | 1,540Top 63% | 1,570+2%Top 57% |
| Geekbench 6 (multi) | 11,000Top 35% | 13,300+21%Top 25% |
| Cinebench R23 (single) | 1,300Top 59% | 1,320+2%Top 56% |
| Cinebench R23 (multi) | 18,300Top 24% | 24,700+35%Top 15% |
| PassMark | 32,600Top 26% | 39,000+20%Top 16% |
Related comparisons
AMD Ryzen 9 3900Xvs AMD Ryzen 7 5700X3DVSAMD Ryzen 9 3900Xvs AMD Ryzen 7 8700GVSAMD Ryzen 9 3900Xvs AMD Ryzen 7 5800XVSAMD Ryzen 9 3900Xvs Intel Core i5-12600KFVSAMD Ryzen 9 3950Xvs AMD Ryzen 5 7600VSAMD Ryzen 9 3950Xvs AMD Ryzen 5 7500FVSAMD Ryzen 9 3950Xvs AMD Ryzen 7 5800X3DVSAMD Ryzen 9 3950Xvs Intel Core i7-12700KVS