AMD Ryzen 9 3900X vs AMD Ryzen 9 5950X
37.6Single-core55.8
54.2Multi-core72.6
78.3Gamingspec-based80.2
2 spec wins — AMD Ryzen 9 3900X11 spec wins — AMD Ryzen 9 5950X
InnoReviews verdict
AMD Ryzen 9 5950X wins this desktop processor face-off, 69.5 to 55.3, pulling ahead mainly in multi-core (+18) and single-core (+18). 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
- 12% higher Base clock: 3.8 GHz vs 3.4 GHz
- Has Cooler included — the other doesn't
- Lower launch price: $499 vs $799
Reasons to pick the AMD Ryzen 9 5950X
- Stronger single-core score: 56 vs 38
- Stronger multi-core score: 73 vs 54
- 56% higher Cinebench R23 (multi): 28,500 vs 18,300
- 40% higher Geekbench 6 (multi): 15,400 vs 11,000
- 40% higher PassMark: 45,700 vs 32,600
General
| Spec | AMD Ryzen 9 3900X | AMD Ryzen 9 5950X |
|---|---|---|
| Announced | 2019 | 2020 |
| 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 5950X |
|---|---|---|
| Cores | 12 | 16+33% |
| Performance cores | 12 | 16+33% |
| Efficiency cores | 0 | 0 |
| Threads | 24 | 32+33% |
| Base clock | 3.8 GHz+12% | 3.4 GHz |
| Boost clock | 4.6 GHz | 4.9 GHz+7% |
| L2 cache | 6 MB | 8 MB+33% |
| L3 cache | 64 MB | 64 MB |
Memory
| Spec | AMD Ryzen 9 3900X | AMD Ryzen 9 5950X |
|---|---|---|
| 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 5950X |
|---|---|---|
| PCIe version | 4 | 4 |
| CPU PCIe lanes | 24 | 24 |
Benchmarks
| Spec | AMD Ryzen 9 3900X | AMD Ryzen 9 5950X |
|---|---|---|
| Geekbench 6 (single) | 1,540Bottom 32% | 2,130+38%Top 45% |
| Geekbench 6 (multi) | 11,000Top 47% | 15,400+40%Top 30% |
| Cinebench R23 (single) | 1,300Bottom 33% | 1,640+26%Top 50% |
| Cinebench R23 (multi) | 18,300Top 32% | 28,500+56%Top 17% |
| PassMark | 32,600Top 37% | 45,700+40%Top 22% |
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