AMD Ryzen 9 3900X vs Intel Core i9-13900K
37.6Single-core84.3
54.2Multi-core92.6
78.3Gamingspec-based71.9
7 spec wins — AMD Ryzen 9 3900X13 spec wins — Intel Core i9-13900K
InnoReviews verdict
Intel Core i9-13900K wins this desktop processor face-off, 84.9 to 55.3, pulling ahead mainly in single-core (+47) and multi-core (+38). AMD Ryzen 9 3900X 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
- 78% higher L3 cache: 64 MB vs 36 MB
- 50% higher Performance cores: 12 vs 8
- 30% lower process: 7 nm vs 10 nm
- 27% higher Base clock: 3.8 GHz vs 3 GHz
- 20% higher CPU PCIe lanes: 24 vs 20
- Lower launch price: $499 vs $589
Reasons to pick the Intel Core i9-13900K
- Stronger single-core score: 84 vs 38
- Stronger multi-core score: 93 vs 54
- 433% higher L2 cache: 32 MB vs 6 MB
- 116% higher Cinebench R23 (multi): 39,500 vs 18,300
- 100% higher cores: 24 vs 12
General
| Spec | AMD Ryzen 9 3900X | Intel Core i9-13900K |
|---|---|---|
| Announced | 2019 | 2022 |
| Socket | AM4 | LGA1700 |
| Process | 7 nm+30% | 10 nm |
| Base TDP | 105 W+16% | 125 W |
| Max turbo power | 142 W | 253 W+78% |
| Unlocked multiplier | Yes | Yes |
| Cooler included | Yes | No |
Cores & Clocks
| Spec | AMD Ryzen 9 3900X | Intel Core i9-13900K |
|---|---|---|
| Cores | 12 | 24+100% |
| Performance cores | 12+50% | 8 |
| Efficiency cores | 0 | 16 |
| Threads | 24 | 32+33% |
| Base clock | 3.8 GHz+27% | 3 GHz |
| Boost clock | 4.6 GHz | 5.8 GHz+26% |
| L2 cache | 6 MB | 32 MB+433% |
| L3 cache | 64 MB+78% | 36 MB |
Integrated GPU
| Spec | AMD Ryzen 9 3900X | Intel Core i9-13900K |
|---|---|---|
| iGPU | — | Intel UHD Graphics 770 |
| iGPU clock | — | 1,650 MHz |
Memory
| Spec | AMD Ryzen 9 3900X | Intel Core i9-13900K |
|---|---|---|
| Memory support | DDR4-3200 | DDR5-5600 / DDR4-3200 |
| Max memory | 128 GB | 128 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 9 3900X | Intel Core i9-13900K |
|---|---|---|
| PCIe version | 4 | 5+25% |
| CPU PCIe lanes | 24+20% | 20 |
Benchmarks
| Spec | AMD Ryzen 9 3900X | Intel Core i9-13900K |
|---|---|---|
| Geekbench 6 (single) | 1,540Bottom 32% | 2,950+92%Top 23% |
| Geekbench 6 (multi) | 11,000Top 47% | 20,500+86%Top 11% |
| Cinebench R23 (single) | 1,300Bottom 33% | 2,250+73%Top 9% |
| Cinebench R23 (multi) | 18,300Top 32% | 39,500+116%Top 8% |
| PassMark | 32,600Top 37% | 59,500+83%Top 8% |
Related comparisons
AMD Ryzen 9 3900Xvs Intel Core i5-12600KVSAMD Ryzen 9 3900Xvs AMD Ryzen 5 8400FVSAMD Ryzen 9 3900Xvs AMD Ryzen 7 5700X3DVSAMD Ryzen 9 3900Xvs AMD Ryzen 7 8700GVSIntel Core i9-13900Kvs Intel Core i9-14900KFVSIntel Core i9-13900Kvs Intel Core Ultra 7 265KFVSIntel Core i9-13900Kvs AMD Ryzen 9 9900XVSIntel Core i9-13900Kvs AMD Ryzen 9 7950XVS