AMD Ryzen 9 3900X vs Intel Core i5-12600KF
37.6Single-core66.5
54.2Multi-core52.4
78.3Gaming52.1
11 spec wins — AMD Ryzen 9 3900X9 spec wins — Intel Core i5-12600KF
InnoReviews verdict
This one is close to a dead heat: AMD Ryzen 9 3900X scores 55.3 against 56.6 for Intel Core i5-12600KF. Pick by the categories that matter to you — Intel Core i5-12600KF edges ahead in Single-core, or by price.
Which would you pick?
Key differences
Reasons to pick the AMD Ryzen 9 3900X
- Stronger gaming score: 78 vs 52
- 220% higher L3 cache: 64 MB vs 20 MB
- 100% higher Performance cores: 12 vs 6
- 50% higher threads: 24 vs 16
- 30% lower process: 7 nm vs 10 nm
Reasons to pick the Intel Core i5-12600KF
- Stronger Single-core score: 67 vs 38
- 58% higher L2 cache: 10 MB vs 6 MB
- 56% higher Geekbench 6 (single): 2,400 vs 1,540
- 46% higher Cinebench R23 (single): 1,900 vs 1,300
- 25% higher PCIe version: 5 vs 4
- Lower launch price: $264 vs $499
General
| Spec | AMD Ryzen 9 3900X | Intel Core i5-12600KF |
|---|---|---|
| Announced | 2019 | 2021 |
| Socket | AM4 | LGA1700 |
| Process | 7 nm+30% | 10 nm |
| Base TDP | 105 W+16% | 125 W |
| Max turbo power | 142 W | 150 W+6% |
| Unlocked multiplier | Yes | Yes |
| Cooler included | Yes | No |
Cores & Clocks
| Spec | AMD Ryzen 9 3900X | Intel Core i5-12600KF |
|---|---|---|
| Cores | 12+20% | 10 |
| Performance cores | 12+100% | 6 |
| Efficiency cores | 0 | 4 |
| Threads | 24+50% | 16 |
| Base clock | 3.8 GHz+3% | 3.7 GHz |
| Boost clock | 4.6 GHz | 4.9 GHz+7% |
| L2 cache | 6 MB | 10 MB+58% |
| L3 cache | 64 MB+220% | 20 MB |
Memory
| Spec | AMD Ryzen 9 3900X | Intel Core i5-12600KF |
|---|---|---|
| Memory support | DDR4-3200 | DDR5-4800 / DDR4-3200 |
| Max memory | 128 GB | 128 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 9 3900X | Intel Core i5-12600KF |
|---|---|---|
| PCIe version | 4 | 5+25% |
| CPU PCIe lanes | 24+20% | 20 |
Benchmarks
| Spec | AMD Ryzen 9 3900X | Intel Core i5-12600KF |
|---|---|---|
| Geekbench 6 (single) | 1,540 | 2,400+56% |
| Geekbench 6 (multi) | 11,000 | 12,500+14% |
| Cinebench R23 (single) | 1,300 | 1,900+46% |
| Cinebench R23 (multi) | 18,300+6% | 17,300 |
| PassMark | 32,600+19% | 27,300 |
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