AMD Ryzen 9 7900 vs AMD Ryzen 9 9900X
78.6Single-core90.1
70.5Multi-core83.6
83.3Gamingspec-based84.6
1 spec wins — AMD Ryzen 9 790010 spec wins — AMD Ryzen 9 9900X
InnoReviews verdict
AMD Ryzen 9 9900X wins this desktop processor face-off, 85.8 to 76.1, pulling ahead mainly in multi-core (+13) and single-core (+12). AMD Ryzen 9 7900 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 7900
- 46% lower Base TDP: 65 W vs 120 W
- Lower launch price: $429 vs $499
Reasons to pick the AMD Ryzen 9 9900X
- Stronger single-core score: 90 vs 79
- Stronger multi-core score: 84 vs 71
- 50% higher Max memory: 192 GB vs 128 GB
- 29% higher Cinebench R23 (multi): 32,000 vs 24,776
- 26% higher Geekbench 6 (multi): 19,800 vs 15,725
General
| Spec | AMD Ryzen 9 7900 | AMD Ryzen 9 9900X |
|---|---|---|
| Announced | 2023 | 2024 |
| Socket | AM5 | AM5 |
| Process | 5 nm | 4 nm+20% |
| Base TDP | 65 W+46% | 120 W |
| Max turbo power | — | 162 W |
| Unlocked multiplier | Yes | Yes |
| Cooler included | No | No |
Cores & Clocks
| Spec | AMD Ryzen 9 7900 | AMD Ryzen 9 9900X |
|---|---|---|
| Cores | 12 | 12 |
| Performance cores | 12 | 12 |
| Efficiency cores | 0 | 0 |
| Threads | 24 | 24 |
| Base clock | 3.7 GHz | 4.4 GHz+19% |
| Boost clock | 5.4 GHz | 5.6 GHz+4% |
| L2 cache | 12 MB | 12 MB |
| L3 cache | 64 MB | 64 MB |
Integrated GPU
| Spec | AMD Ryzen 9 7900 | 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 7900 | 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 7900 | AMD Ryzen 9 9900X |
|---|---|---|
| PCIe version | 5 | 5 |
| CPU PCIe lanes | 28 | 28 |
Benchmarks
| Spec | AMD Ryzen 9 7900 | AMD Ryzen 9 9900X |
|---|---|---|
| Geekbench 6 (single) | 2,990Top 19% | 3,300+10%Top 6% |
| Geekbench 6 (multi) | 15,725Top 28% | 19,800+26%Top 15% |
| Cinebench R23 (single) | 1,966Top 26% | 2,230+13%Top 11% |
| Cinebench R23 (multi) | 24,776Top 21% | 32,000+29%Top 14% |
| PassMark | 48,013Top 20% | 55,500+16%Top 13% |
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