AMD Ryzen 9 3900X vs Intel Core i7-9700K
37.6Single-core39
54.2Multi-core35.5
78.3Gaming39.8
16 spec wins — AMD Ryzen 9 3900X3 spec wins — Intel Core i7-9700K
InnoReviews verdict
AMD Ryzen 9 3900X wins this desktop processor face-off, 55.3 to 37.6, pulling ahead mainly in gaming (+39) and Multi-core (+19). Intel Core i7-9700K 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 36
- Stronger gaming score: 78 vs 40
- 433% higher L3 cache: 64 MB vs 12 MB
- 200% higher threads: 24 vs 8
- 200% higher L2 cache: 6 MB vs 2 MB
Reasons to pick the Intel Core i7-9700K
- 10% lower Base TDP: 95 W vs 105 W
- Lower launch price: $374 vs $499
General
| Spec | AMD Ryzen 9 3900X | Intel Core i7-9700K |
|---|---|---|
| Announced | 2019 | 2018 |
| Socket | AM4 | LGA1151-v2 |
| Process | 7 nm+50% | 14 nm |
| Base TDP | 105 W | 95 W+10% |
| Max turbo power | 142 W+19% | 119 W |
| Unlocked multiplier | Yes | Yes |
| Cooler included | Yes | No |
Cores & Clocks
| Spec | AMD Ryzen 9 3900X | Intel Core i7-9700K |
|---|---|---|
| Cores | 12+50% | 8 |
| Performance cores | 12+50% | 8 |
| Efficiency cores | 0 | 0 |
| Threads | 24+200% | 8 |
| Base clock | 3.8 GHz+6% | 3.6 GHz |
| Boost clock | 4.6 GHz | 4.9 GHz+7% |
| L2 cache | 6 MB+200% | 2 MB |
| L3 cache | 64 MB+433% | 12 MB |
Integrated GPU
| Spec | AMD Ryzen 9 3900X | Intel Core i7-9700K |
|---|---|---|
| iGPU | — | Intel UHD Graphics 630 |
| iGPU clock | — | 1,200 MHz |
Memory
| Spec | AMD Ryzen 9 3900X | Intel Core i7-9700K |
|---|---|---|
| Memory support | DDR4-3200 | DDR4-2666 |
| Max memory | 128 GB | 128 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 9 3900X | Intel Core i7-9700K |
|---|---|---|
| PCIe version | 4+33% | 3 |
| CPU PCIe lanes | 24+50% | 16 |
Benchmarks
| Spec | AMD Ryzen 9 3900X | Intel Core i7-9700K |
|---|---|---|
| Geekbench 6 (single) | 1,540Top 63% | 1,680+9%Top 53% |
| Geekbench 6 (multi) | 11,000+57%Top 35% | 7,000Top 57% |
| Cinebench R23 (single) | 1,300+4%Top 59% | 1,250Top 66% |
| Cinebench R23 (multi) | 18,300+89%Top 24% | 9,700Top 59% |
| PassMark | 32,600+128%Top 26% | 14,300Top 64% |
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 i7-9700Kvs Intel Core i5-11400VSIntel Core i7-9700Kvs Intel Core i5-11400FVSIntel Core i7-9700Kvs Intel Core i7-8700KVSIntel Core i7-9700Kvs Intel Core i5-10600KVS