AMD Ryzen 9 7900 vs Intel Core i7-5820K
78.6Single-core20.7
70.5Multi-core30.2
83.3Gamingspec-based37.1
17 spec wins — AMD Ryzen 9 79001 spec wins — Intel Core i7-5820K
InnoReviews verdict
AMD Ryzen 9 7900 wins this desktop processor face-off, 76.1 to 29.1, pulling ahead mainly in single-core (+58) and multi-core (+40). 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 7900
- Stronger single-core score: 79 vs 21
- Stronger multi-core score: 71 vs 30
- 700% higher L2 cache: 12 MB vs 2 MB
- 327% higher L3 cache: 64 MB vs 15 MB
- 287% higher Cinebench R23 (multi): 24,776 vs 6,400
Reasons to pick the Intel Core i7-5820K
- 100% higher Memory channels: 4 vs 2
General
| Spec | AMD Ryzen 9 7900 | Intel Core i7-5820K |
|---|---|---|
| Announced | 2023 | 2014 |
| Socket | AM5 | LGA2011-v3 |
| Process | 5 nm+77% | 22 nm |
| Base TDP | 65 W+54% | 140 W |
| Unlocked multiplier | Yes | Yes |
| Cooler included | No | No |
Cores & Clocks
| Spec | AMD Ryzen 9 7900 | Intel Core i7-5820K |
|---|---|---|
| Cores | 12+100% | 6 |
| Performance cores | 12+100% | 6 |
| Efficiency cores | 0 | 0 |
| Threads | 24+100% | 12 |
| Base clock | 3.7 GHz+12% | 3.3 GHz |
| Boost clock | 5.4 GHz+50% | 3.6 GHz |
| L2 cache | 12 MB+700% | 2 MB |
| L3 cache | 64 MB+327% | 15 MB |
Integrated GPU
| Spec | AMD Ryzen 9 7900 | Intel Core i7-5820K |
|---|---|---|
| iGPU | AMD Radeon Graphics | — |
| iGPU clock | 2,200 MHz | — |
Memory
| Spec | AMD Ryzen 9 7900 | 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 7900 | Intel Core i7-5820K |
|---|---|---|
| PCIe version | 5+67% | 3 |
| CPU PCIe lanes | 28 | 28 |
Benchmarks
| Spec | AMD Ryzen 9 7900 | Intel Core i7-5820K |
|---|---|---|
| Geekbench 6 (single) | 2,990+188%Top 19% | 1,040Bottom 6% |
| Geekbench 6 (multi) | 15,725+208%Top 28% | 5,100Bottom 24% |
| Cinebench R23 (single) | 1,966+121%Top 26% | 890Bottom 5% |
| Cinebench R23 (multi) | 24,776+287%Top 21% | 6,400Bottom 19% |
| PassMark | 48,013+278%Top 20% | 12,700Bottom 20% |
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