AMD Ryzen 9 7900X vs Intel Core i7-5820K
77.4Single-core20.7
78.5Multi-core30.2
84.6Gaming37.1
16 spec wins — AMD Ryzen 9 7900X2 spec wins — Intel Core i7-5820K
InnoReviews verdict
AMD Ryzen 9 7900X wins this desktop processor face-off, 79.7 to 29.1, pulling ahead mainly in Single-core (+57) and Multi-core (+48). 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 7900X
- Stronger Single-core score: 77 vs 21
- Stronger Multi-core score: 79 vs 30
- Stronger gaming score: 85 vs 37
- 700% higher L2 cache: 12 MB vs 2 MB
- 353% higher Cinebench R23 (multi): 29,000 vs 6,400
Reasons to pick the Intel Core i7-5820K
- 100% higher Memory channels: 4 vs 2
- 18% lower Base TDP: 140 W vs 170 W
- Lower launch price: $389 vs $549
General
| Spec | AMD Ryzen 9 7900X | Intel Core i7-5820K |
|---|---|---|
| Announced | 2022 | 2014 |
| Socket | AM5 | LGA2011-v3 |
| Process | 5 nm+77% | 22 nm |
| Base TDP | 170 W | 140 W+18% |
| Max turbo power | 230 W | — |
| Unlocked multiplier | Yes | Yes |
| Cooler included | No | No |
Cores & Clocks
| Spec | AMD Ryzen 9 7900X | Intel Core i7-5820K |
|---|---|---|
| Cores | 12+100% | 6 |
| Performance cores | 12+100% | 6 |
| Efficiency cores | 0 | 0 |
| Threads | 24+100% | 12 |
| Base clock | 4.7 GHz+42% | 3.3 GHz |
| Boost clock | 5.6 GHz+56% | 3.6 GHz |
| L2 cache | 12 MB+700% | 2 MB |
| L3 cache | 64 MB+327% | 15 MB |
Integrated GPU
| Spec | AMD Ryzen 9 7900X | Intel Core i7-5820K |
|---|---|---|
| iGPU | AMD Radeon Graphics (2 CU RDNA 2) | — |
| iGPU clock | 2,200 MHz | — |
Memory
| Spec | AMD Ryzen 9 7900X | 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 7900X | Intel Core i7-5820K |
|---|---|---|
| PCIe version | 5+67% | 3 |
| CPU PCIe lanes | 28 | 28 |
Benchmarks
| Spec | AMD Ryzen 9 7900X | Intel Core i7-5820K |
|---|---|---|
| Geekbench 6 (single) | 2,880+177%Top 15% | 1,040Top 95% |
| Geekbench 6 (multi) | 18,500+263%Top 10% | 5,100Top 73% |
| Cinebench R23 (single) | 2,000+125%Top 17% | 890Top 96% |
| Cinebench R23 (multi) | 29,000+353%Top 12% | 6,400Top 77% |
| PassMark | 52,500+313%Top 10% | 12,700Top 72% |
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