AMD Ryzen 9 7900X3D vs AMD Ryzen 9 9900X
77.8Single-core90.1
75.2Multi-core83.6
94.4Gamingspec-based84.6
1 spec wins — AMD Ryzen 9 7900X3D9 spec wins — AMD Ryzen 9 9900X
InnoReviews verdict
AMD Ryzen 9 9900X wins this desktop processor face-off, 85.8 to 80.8, pulling ahead mainly in single-core (+12) and multi-core (+8). AMD Ryzen 9 7900X3D 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 7900X3D
- 100% higher L3 cache: 128 MB vs 64 MB
Reasons to pick the AMD Ryzen 9 9900X
- Stronger single-core score: 90 vs 78
- Stronger multi-core score: 84 vs 75
- 50% higher Max memory: 192 GB vs 128 GB
- 20% lower process: 4 nm vs 5 nm
- 20% higher Cinebench R23 (multi): 32,000 vs 26,747
- Lower launch price: $499 vs $599
General
| Spec | AMD Ryzen 9 7900X3D | AMD Ryzen 9 9900X |
|---|---|---|
| Announced | 2023 | 2024 |
| Socket | AM5 | AM5 |
| Process | 5 nm | 4 nm+20% |
| Base TDP | 120 W | 120 W |
| Max turbo power | 162 W | 162 W |
| Unlocked multiplier | No | Yes |
| Cooler included | No | No |
Cores & Clocks
| Spec | AMD Ryzen 9 7900X3D | AMD Ryzen 9 9900X |
|---|---|---|
| Cores | 12 | 12 |
| Performance cores | 12 | 12 |
| Efficiency cores | 0 | 0 |
| Threads | 24 | 24 |
| Base clock | 4.4 GHz | 4.4 GHz |
| Boost clock | 5.6 GHz | 5.6 GHz |
| L2 cache | 12 MB | 12 MB |
| L3 cache | 128 MB+100% | 64 MB |
Integrated GPU
| Spec | AMD Ryzen 9 7900X3D | AMD Ryzen 9 9900X |
|---|---|---|
| iGPU | AMD Radeon Graphics | AMD Radeon Graphics (2 CU RDNA 2) |
| iGPU clock | 2,200 MHz | 2,200 MHz |
Memory
| Spec | AMD Ryzen 9 7900X3D | AMD Ryzen 9 9900X |
|---|---|---|
| Memory support | DDR5-5200 | DDR5-5600 |
| Max memory | 128 GB | 192 GB+50% |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 9 7900X3D | AMD Ryzen 9 9900X |
|---|---|---|
| PCIe version | 5 | 5 |
| CPU PCIe lanes | 28 | 28 |
Benchmarks
| Spec | AMD Ryzen 9 7900X3D | AMD Ryzen 9 9900X |
|---|---|---|
| Geekbench 6 (single) | 3,020Top 17% | 3,300+9%Top 6% |
| Geekbench 6 (multi) | 18,128Top 20% | 19,800+9%Top 15% |
| Cinebench R23 (single) | 1,908Top 29% | 2,230+17%Top 11% |
| Cinebench R23 (multi) | 26,747Top 19% | 32,000+20%Top 14% |
| PassMark | 50,200Top 17% | 55,500+11%Top 13% |
Related comparisons
AMD Ryzen 9 7900X3Dvs Intel Core i7-14700KVSAMD Ryzen 9 7900X3Dvs AMD Ryzen 9 7900XVSAMD Ryzen 9 7900X3Dvs Intel Core Ultra 5 250K PlusVSAMD Ryzen 9 7900X3Dvs Intel Core Ultra 9 285VSAMD Ryzen 9 9900Xvs Intel Core i9-13900KVSAMD Ryzen 9 9900Xvs AMD Ryzen 9 7950XVSAMD Ryzen 9 9900Xvs Intel Core Ultra 7 265KFVSAMD Ryzen 9 9900Xvs Intel Core i9-14900KVS