AMD Ryzen 9 7900X3D vs Intel Core i7-5820K
77.8Single-core20.7
75.2Multi-core30.2
94.4Gamingspec-based37.1
17 spec wins — AMD Ryzen 9 7900X3D2 spec wins — Intel Core i7-5820K
InnoReviews verdict
AMD Ryzen 9 7900X3D wins this desktop processor face-off, 80.8 to 29.1, pulling ahead mainly in single-core (+57) and multi-core (+45). Intel Core i7-5820K 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
- Stronger single-core score: 78 vs 21
- Stronger multi-core score: 75 vs 30
- 753% higher L3 cache: 128 MB vs 15 MB
- 700% higher L2 cache: 12 MB vs 2 MB
- 318% higher Cinebench R23 (multi): 26,747 vs 6,400
Reasons to pick the Intel Core i7-5820K
- 100% higher Memory channels: 4 vs 2
- Has Unlocked multiplier — the other doesn't
- Lower launch price: $389 vs $599
General
| Spec | AMD Ryzen 9 7900X3D | Intel Core i7-5820K |
|---|---|---|
| Announced | 2023 | 2014 |
| Socket | AM5 | LGA2011-v3 |
| Process | 5 nm+77% | 22 nm |
| Base TDP | 120 W+14% | 140 W |
| Max turbo power | 162 W | — |
| Unlocked multiplier | No | Yes |
| Cooler included | No | No |
Cores & Clocks
| Spec | AMD Ryzen 9 7900X3D | Intel Core i7-5820K |
|---|---|---|
| Cores | 12+100% | 6 |
| Performance cores | 12+100% | 6 |
| Efficiency cores | 0 | 0 |
| Threads | 24+100% | 12 |
| Base clock | 4.4 GHz+33% | 3.3 GHz |
| Boost clock | 5.6 GHz+56% | 3.6 GHz |
| L2 cache | 12 MB+700% | 2 MB |
| L3 cache | 128 MB+753% | 15 MB |
Integrated GPU
| Spec | AMD Ryzen 9 7900X3D | Intel Core i7-5820K |
|---|---|---|
| iGPU | AMD Radeon Graphics | — |
| iGPU clock | 2,200 MHz | — |
Memory
| Spec | AMD Ryzen 9 7900X3D | Intel Core i7-5820K |
|---|---|---|
| Memory support | DDR5-5200 | DDR4-2133 |
| Max memory | 128 GB+100% | 64 GB |
| Memory channels | 2 | 4+100% |
Platform
| Spec | AMD Ryzen 9 7900X3D | Intel Core i7-5820K |
|---|---|---|
| PCIe version | 5+67% | 3 |
| CPU PCIe lanes | 28 | 28 |
Benchmarks
| Spec | AMD Ryzen 9 7900X3D | Intel Core i7-5820K |
|---|---|---|
| Geekbench 6 (single) | 3,020+190%Top 17% | 1,040Bottom 6% |
| Geekbench 6 (multi) | 18,128+255%Top 20% | 5,100Bottom 24% |
| Cinebench R23 (single) | 1,908+114%Top 29% | 890Bottom 5% |
| Cinebench R23 (multi) | 26,747+318%Top 19% | 6,400Bottom 19% |
| PassMark | 50,200+295%Top 17% | 12,700Bottom 20% |
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