AMD Ryzen 9 3900X vs Intel Core i5-11600K
37.6Single-core48
54.2Multi-core39.1
78.3Gaming39.8
12 spec wins — AMD Ryzen 9 3900X6 spec wins — Intel Core i5-11600K
InnoReviews verdict
AMD Ryzen 9 3900X wins this desktop processor face-off, 55.3 to 42, pulling ahead mainly in gaming (+39) and Multi-core (+15). Intel Core i5-11600K 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 39
- Stronger gaming score: 78 vs 40
- 433% higher L3 cache: 64 MB vs 12 MB
- 100% higher cores: 12 vs 6
- 100% higher Performance cores: 12 vs 6
Reasons to pick the Intel Core i5-11600K
- Stronger Single-core score: 48 vs 38
- 77% higher Max turbo power: 251 W vs 142 W
- 21% higher Geekbench 6 (single): 1,870 vs 1,540
- 15% higher Cinebench R23 (single): 1,500 vs 1,300
- Lower launch price: $262 vs $499
General
| Spec | AMD Ryzen 9 3900X | Intel Core i5-11600K |
|---|---|---|
| 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 i5-11600K |
|---|---|---|
| Cores | 12+100% | 6 |
| Performance cores | 12+100% | 6 |
| Efficiency cores | 0 | 0 |
| Threads | 24+100% | 12 |
| Base clock | 3.8 GHz | 3.9 GHz+3% |
| Boost clock | 4.6 GHz | 4.9 GHz+7% |
| L2 cache | 6 MB+100% | 3 MB |
| L3 cache | 64 MB+433% | 12 MB |
Integrated GPU
| Spec | AMD Ryzen 9 3900X | Intel Core i5-11600K |
|---|---|---|
| iGPU | — | Intel UHD Graphics 750 |
| iGPU clock | — | 1,300 MHz |
Memory
| Spec | AMD Ryzen 9 3900X | Intel Core i5-11600K |
|---|---|---|
| Memory support | DDR4-3200 | DDR4-3200 |
| Max memory | 128 GB | 128 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 9 3900X | Intel Core i5-11600K |
|---|---|---|
| PCIe version | 4 | 4 |
| CPU PCIe lanes | 24+20% | 20 |
Benchmarks
| Spec | AMD Ryzen 9 3900X | Intel Core i5-11600K |
|---|---|---|
| Geekbench 6 (single) | 1,540Top 63% | 1,870+21%Top 44% |
| Geekbench 6 (multi) | 11,000+55%Top 35% | 7,100Top 56% |
| Cinebench R23 (single) | 1,300Top 59% | 1,500+15%Top 44% |
| Cinebench R23 (multi) | 18,300+65%Top 24% | 11,100Top 50% |
| PassMark | 32,600+65%Top 26% | 19,800Top 48% |
Related comparisons
AMD Ryzen 9 3900Xvs AMD Ryzen 7 5700X3DVSAMD Ryzen 9 3900Xvs AMD Ryzen 7 8700GVSAMD Ryzen 9 3900Xvs AMD Ryzen 7 5800XVSAMD Ryzen 9 3900Xvs Intel Core i5-12600KFVSIntel Core i5-11600Kvs AMD Ryzen 5 3600VSIntel Core i5-11600Kvs Intel Core i9-9900KVSIntel Core i5-11600Kvs AMD Ryzen 5 3600XVSIntel Core i5-11600Kvs AMD Ryzen 5 5600GVS