AMD Ryzen 5 PRO 9645 vs AMD Ryzen 7 7800X3D
85.2Single-core65.3
54.1Multi-core55.5
66.6Gamingspec-based90.6
7 spec wins — AMD Ryzen 5 PRO 96457 spec wins — AMD Ryzen 7 7800X3D
InnoReviews verdict
This one is close to a dead heat: AMD Ryzen 5 PRO 9645 scores 66.6 against 67.2 for AMD Ryzen 7 7800X3D. Pick by the categories that matter to you — AMD Ryzen 7 7800X3D edges ahead in multi-core, or by price.
Which would you pick?
Key differences
Reasons to pick the AMD Ryzen 5 PRO 9645
- Stronger single-core score: 85 vs 65
- 50% higher Max memory: 192 GB vs 128 GB
- 46% lower Base TDP: 65 W vs 120 W
- 22% higher PassMark (single thread): 4,571 vs 3,759
- 20% lower process: 4 nm vs 5 nm
Reasons to pick the AMD Ryzen 7 7800X3D
- 200% higher L3 cache: 96 MB vs 32 MB
- 33% higher cores: 8 vs 6
- 33% higher Performance cores: 8 vs 6
- 33% higher threads: 16 vs 12
- 33% higher L2 cache: 8 MB vs 6 MB
General
| Spec | AMD Ryzen 5 PRO 9645 | AMD Ryzen 7 7800X3D |
|---|---|---|
| Announced | 2025 | 2023 |
| Socket | AM5 | AM5 |
| Process | 4 nm+20% | 5 nm |
| Base TDP | 65 W+46% | 120 W |
| Max turbo power | — | 162 W |
| Unlocked multiplier | No | No |
| Cooler included | Yes | No |
Cores & Clocks
| Spec | AMD Ryzen 5 PRO 9645 | AMD Ryzen 7 7800X3D |
|---|---|---|
| Cores | 6 | 8+33% |
| Performance cores | 6 | 8+33% |
| Efficiency cores | 0 | 0 |
| Threads | 12 | 16+33% |
| Base clock | 3.9 GHz | 4.2 GHz+8% |
| Boost clock | 5.4 GHz+8% | 5 GHz |
| L2 cache | 6 MB | 8 MB+33% |
| L3 cache | 32 MB | 96 MB+200% |
Integrated GPU
| Spec | AMD Ryzen 5 PRO 9645 | AMD Ryzen 7 7800X3D |
|---|---|---|
| iGPU | AMD Radeon Graphics (2 CU) | AMD Radeon Graphics (2 CU RDNA 2) |
| iGPU clock | 2,200 MHz | 2,200 MHz |
Memory
| Spec | AMD Ryzen 5 PRO 9645 | AMD Ryzen 7 7800X3D |
|---|---|---|
| Memory support | DDR5-5600 | DDR5-5200 |
| Max memory | 192 GB+50% | 128 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 5 PRO 9645 | AMD Ryzen 7 7800X3D |
|---|---|---|
| PCIe version | 5 | 5 |
| CPU PCIe lanes | 28 | 28 |
Benchmarks
| Spec | AMD Ryzen 5 PRO 9645 | AMD Ryzen 7 7800X3D |
|---|---|---|
| Cinebench R23 (single) | — | 1,810Top 41% |
| Cinebench R23 (multi) | — | 17,800Top 37% |
| PassMark | 30,512Top 34% | 34,279+12%Top 29% |
| PassMark (single thread) | 4,571+22%Top 11% | 3,759Top 37% |
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