AMD Ryzen 9 3900X vs Intel Core i9-14900KS
37.6Single-core92.1
54.2Multi-core96.7
78.3Gaming74.4
7 spec wins — AMD Ryzen 9 3900X14 spec wins — Intel Core i9-14900KS
InnoReviews verdict
Intel Core i9-14900KS wins this desktop processor face-off, 89.8 to 55.3, pulling ahead mainly in Single-core (+54) and Multi-core (+43). 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
- Stronger gaming score: 78 vs 74
- 78% higher L3 cache: 64 MB vs 36 MB
- 50% higher Performance cores: 12 vs 8
- 30% lower process: 7 nm vs 10 nm
- 30% lower Base TDP: 105 W vs 150 W
- Lower launch price: $499 vs $689
Reasons to pick the Intel Core i9-14900KS
- Stronger Single-core score: 92 vs 38
- Stronger Multi-core score: 97 vs 54
- 433% higher L2 cache: 32 MB vs 6 MB
- 127% higher Cinebench R23 (multi): 41,500 vs 18,300
- 111% higher Geekbench 6 (single): 3,250 vs 1,540
General
| Spec | AMD Ryzen 9 3900X | Intel Core i9-14900KS |
|---|---|---|
| Announced | 2019 | 2024 |
| Socket | AM4 | LGA1700 |
| Process | 7 nm+30% | 10 nm |
| Base TDP | 105 W+30% | 150 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 i9-14900KS |
|---|---|---|
| Cores | 12 | 24+100% |
| Performance cores | 12+50% | 8 |
| Efficiency cores | 0 | 16 |
| Threads | 24 | 32+33% |
| Base clock | 3.8 GHz+19% | 3.2 GHz |
| Boost clock | 4.6 GHz | 6.2 GHz+35% |
| L2 cache | 6 MB | 32 MB+433% |
| L3 cache | 64 MB+78% | 36 MB |
Integrated GPU
| Spec | AMD Ryzen 9 3900X | Intel Core i9-14900KS |
|---|---|---|
| iGPU | — | Intel UHD Graphics 770 |
| iGPU clock | — | 1,650 MHz |
Memory
| Spec | AMD Ryzen 9 3900X | Intel Core i9-14900KS |
|---|---|---|
| Memory support | DDR4-3200 | DDR5-5600 / DDR4-3200 |
| Max memory | 128 GB | 192 GB+50% |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 9 3900X | Intel Core i9-14900KS |
|---|---|---|
| PCIe version | 4 | 5+25% |
| CPU PCIe lanes | 24+20% | 20 |
Benchmarks
| Spec | AMD Ryzen 9 3900X | Intel Core i9-14900KS |
|---|---|---|
| Geekbench 6 (single) | 1,540Top 63% | 3,250+111%Top 4% |
| Geekbench 6 (multi) | 11,000Top 35% | 21,800+98%Top 3% |
| Cinebench R23 (single) | 1,300Top 59% | 2,360+82%Top 2% |
| Cinebench R23 (multi) | 18,300Top 24% | 41,500+127%Top 3% |
| PassMark | 32,600Top 26% | 63,500+95%Top 3% |
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