AMD Ryzen 9 7900X vs AMD Ryzen 9 PRO 9945
77.4Single-core86.4
78Multi-core76.9
84.6Gamingspec-based83.3
4 spec wins — AMD Ryzen 9 7900X6 spec wins — AMD Ryzen 9 PRO 9945
InnoReviews verdict
AMD Ryzen 9 PRO 9945 wins this desktop processor face-off, 81.4 to 79.4, pulling ahead mainly in single-core (+9). AMD Ryzen 9 7900X 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 7900X
- 38% higher Base clock: 4.7 GHz vs 3.4 GHz
- Has Unlocked multiplier — the other doesn't
Reasons to pick the AMD Ryzen 9 PRO 9945
- Stronger single-core score: 86 vs 77
- 62% lower Base TDP: 65 W vs 170 W
- 50% higher Max memory: 192 GB vs 128 GB
- 20% lower process: 4 nm vs 5 nm
- Has Cooler included — the other doesn't
General
| Spec | AMD Ryzen 9 7900X | AMD Ryzen 9 PRO 9945 |
|---|---|---|
| Announced | 2022 | 2025 |
| Socket | AM5 | AM5 |
| Process | 5 nm | 4 nm+20% |
| Base TDP | 170 W | 65 W+62% |
| Max turbo power | 230 W | — |
| Unlocked multiplier | Yes | No |
| Cooler included | No | Yes |
Cores & Clocks
| Spec | AMD Ryzen 9 7900X | AMD Ryzen 9 PRO 9945 |
|---|---|---|
| Cores | 12 | 12 |
| Performance cores | 12 | 12 |
| Efficiency cores | 0 | 0 |
| Threads | 24 | 24 |
| Base clock | 4.7 GHz+38% | 3.4 GHz |
| Boost clock | 5.6 GHz+4% | 5.4 GHz |
| L2 cache | 12 MB | 12 MB |
| L3 cache | 64 MB | 64 MB |
Integrated GPU
| Spec | AMD Ryzen 9 7900X | AMD Ryzen 9 PRO 9945 |
|---|---|---|
| iGPU | AMD Radeon Graphics (2 CU RDNA 2) | AMD Radeon Graphics (2 CU) |
| iGPU clock | 2,200 MHz | 2,200 MHz |
Memory
| Spec | AMD Ryzen 9 7900X | AMD Ryzen 9 PRO 9945 |
|---|---|---|
| Memory support | DDR5-5200 | DDR5-5600 |
| Max memory | 128 GB | 192 GB+50% |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 9 7900X | AMD Ryzen 9 PRO 9945 |
|---|---|---|
| PCIe version | 5 | 5 |
| CPU PCIe lanes | 28 | 28 |
Benchmarks
| Spec | AMD Ryzen 9 7900X | AMD Ryzen 9 PRO 9945 |
|---|---|---|
| Geekbench 6 (single) | 2,880Top 29% | — |
| Geekbench 6 (multi) | 18,500Top 20% | — |
| Cinebench R23 (single) | 2,000Top 27% | — |
| Cinebench R23 (multi) | 29,000Top 20% | — |
| PassMark | 51,211+5%Top 12% | 48,664Top 15% |
| PassMark (single thread) | 4,225Top 21% | 4,619+9%Top 10% |
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