AMD Ryzen 7 9800X3D vs AMD Ryzen 9 3900X
85.2Single-core37.6
64.7Multi-core54.2
91.9Gaming78.3
15 spec wins — AMD Ryzen 7 9800X3D5 spec wins — AMD Ryzen 9 3900X
InnoReviews verdict
AMD Ryzen 7 9800X3D wins this desktop processor face-off, 77.6 to 55.3, pulling ahead mainly in Single-core (+48) and gaming (+14). 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 9800X3D
- Stronger Single-core score: 85 vs 38
- Stronger Multi-core score: 65 vs 54
- Stronger gaming score: 92 vs 78
- 105% higher Geekbench 6 (single): 3,150 vs 1,540
- 68% higher Geekbench 6 (multi): 18,500 vs 11,000
Reasons to pick the AMD Ryzen 9 3900X
- 50% higher cores: 12 vs 8
- 50% higher Performance cores: 12 vs 8
- 50% higher threads: 24 vs 16
- 12% lower Base TDP: 105 W vs 120 W
- Has Cooler included — the other doesn't
General
| Spec | AMD Ryzen 7 9800X3D | AMD Ryzen 9 3900X |
|---|---|---|
| Announced | 2024 | 2019 |
| Socket | AM5 | AM4 |
| Process | 4 nm+43% | 7 nm |
| Base TDP | 120 W | 105 W+12% |
| Max turbo power | 162 W+14% | 142 W |
| Unlocked multiplier | Yes | Yes |
| Cooler included | No | Yes |
Cores & Clocks
| Spec | AMD Ryzen 7 9800X3D | AMD Ryzen 9 3900X |
|---|---|---|
| Cores | 8 | 12+50% |
| Performance cores | 8 | 12+50% |
| Efficiency cores | 0 | 0 |
| Threads | 16 | 24+50% |
| Base clock | 4.7 GHz+24% | 3.8 GHz |
| Boost clock | 5.2 GHz+13% | 4.6 GHz |
| L2 cache | 8 MB+33% | 6 MB |
| L3 cache | 96 MB+50% | 64 MB |
Integrated GPU
| Spec | AMD Ryzen 7 9800X3D | AMD Ryzen 9 3900X |
|---|---|---|
| iGPU | AMD Radeon Graphics (2 CU RDNA 2) | — |
| iGPU clock | 2,200 MHz | — |
Memory
| Spec | AMD Ryzen 7 9800X3D | AMD Ryzen 9 3900X |
|---|---|---|
| Memory support | DDR5-5600 | DDR4-3200 |
| Max memory | 192 GB+50% | 128 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 7 9800X3D | AMD Ryzen 9 3900X |
|---|---|---|
| PCIe version | 5+25% | 4 |
| CPU PCIe lanes | 28+17% | 24 |
Benchmarks
| Spec | AMD Ryzen 7 9800X3D | AMD Ryzen 9 3900X |
|---|---|---|
| Geekbench 6 (single) | 3,150+105%Top 5% | 1,540Top 63% |
| Geekbench 6 (multi) | 18,500+68%Top 10% | 11,000Top 35% |
| Cinebench R23 (single) | 2,130+64%Top 12% | 1,300Top 59% |
| Cinebench R23 (multi) | 19,500+7%Top 21% | 18,300Top 24% |
| PassMark | 40,000+23%Top 15% | 32,600Top 26% |
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