AMD Ryzen 9 3900X vs Intel Core i7-11700K
37.6Single-core47.9
54.2Multi-core46.8
78.3Gaming47.4
13 spec wins — AMD Ryzen 9 3900X5 spec wins — Intel Core i7-11700K
InnoReviews verdict
AMD Ryzen 9 3900X wins this desktop processor face-off, 55.3 to 47.3, pulling ahead mainly in gaming (+31) and Multi-core (+7). Intel Core i7-11700K 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 3900X
- Stronger Multi-core score: 54 vs 47
- Stronger gaming score: 78 vs 47
- 300% higher L3 cache: 64 MB vs 16 MB
- 50% lower process: 7 nm vs 14 nm
- 50% higher cores: 12 vs 8
Reasons to pick the Intel Core i7-11700K
- Stronger Single-core score: 48 vs 38
- 77% higher Max turbo power: 251 W vs 142 W
- 19% higher Cinebench R23 (single): 1,550 vs 1,300
- 17% higher Geekbench 6 (single): 1,800 vs 1,540
- Lower launch price: $399 vs $499
General
| Spec | AMD Ryzen 9 3900X | Intel Core i7-11700K |
|---|---|---|
| Announced | 2019 | 2021 |
| Socket | AM4 | LGA1200 |
| Process | 7 nm+50% | 14 nm |
| Base TDP | 105 W+16% | 125 W |
| Max turbo power | 142 W | 251 W+77% |
| Unlocked multiplier | Yes | Yes |
| Cooler included | Yes | No |
Cores & Clocks
| Spec | AMD Ryzen 9 3900X | Intel Core i7-11700K |
|---|---|---|
| Cores | 12+50% | 8 |
| Performance cores | 12+50% | 8 |
| Efficiency cores | 0 | 0 |
| Threads | 24+50% | 16 |
| Base clock | 3.8 GHz+6% | 3.6 GHz |
| Boost clock | 4.6 GHz | 5 GHz+9% |
| L2 cache | 6 MB+50% | 4 MB |
| L3 cache | 64 MB+300% | 16 MB |
Integrated GPU
| Spec | AMD Ryzen 9 3900X | Intel Core i7-11700K |
|---|---|---|
| iGPU | — | Intel UHD Graphics 750 |
| iGPU clock | — | 1,300 MHz |
Memory
| Spec | AMD Ryzen 9 3900X | Intel Core i7-11700K |
|---|---|---|
| Memory support | DDR4-3200 | DDR4-3200 |
| Max memory | 128 GB | 128 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 9 3900X | Intel Core i7-11700K |
|---|---|---|
| PCIe version | 4 | 4 |
| CPU PCIe lanes | 24+20% | 20 |
Benchmarks
| Spec | AMD Ryzen 9 3900X | Intel Core i7-11700K |
|---|---|---|
| Geekbench 6 (single) | 1,540Top 63% | 1,800+17%Top 46% |
| Geekbench 6 (multi) | 11,000+15%Top 35% | 9,600Top 42% |
| Cinebench R23 (single) | 1,300Top 59% | 1,550+19%Top 42% |
| Cinebench R23 (multi) | 18,300+22%Top 24% | 15,000Top 36% |
| PassMark | 32,600+32%Top 26% | 24,700Top 39% |
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