AMD Ryzen 9 3900X vs Intel Core i5-14400
37.6Single-core—
54.2Multi-core47.2
78.3Gamingspec-based50.9
9 spec wins — AMD Ryzen 9 3900X8 spec wins — Intel Core i5-14400
InnoReviews verdict
No overall winner yet: Intel Core i5-14400 lacks the published benchmark results an Inno Score requires, so there is no Inno Score to compare — we don't rank chips on their spec sheet alone. The spec table below still shows every difference we track.
Which would you pick?
Key differences
Reasons to pick the AMD Ryzen 9 3900X
- Stronger multi-core score: 54 vs 47
- 220% higher L3 cache: 64 MB vs 20 MB
- 100% higher Performance cores: 12 vs 6
- 52% higher Base clock: 3.8 GHz vs 2.5 GHz
- 50% higher threads: 24 vs 16
Reasons to pick the Intel Core i5-14400
- 58% higher L2 cache: 10 MB vs 6 MB
- 50% higher Max memory: 192 GB vs 128 GB
- 38% lower Base TDP: 65 W vs 105 W
- 25% higher PCIe version: 5 vs 4
- Lower launch price: $221 vs $499
General
| Spec | AMD Ryzen 9 3900X | Intel Core i5-14400 |
|---|---|---|
| Announced | 2019 | 2024 |
| Socket | AM4 | LGA1700 |
| Process | 7 nm+30% | 10 nm |
| Base TDP | 105 W | 65 W+38% |
| Max turbo power | 142 W | 148 W+4% |
| Unlocked multiplier | Yes | No |
| Cooler included | Yes | Yes |
Cores & Clocks
| Spec | AMD Ryzen 9 3900X | Intel Core i5-14400 |
|---|---|---|
| Cores | 12+20% | 10 |
| Performance cores | 12+100% | 6 |
| Efficiency cores | 0 | 4 |
| Threads | 24+50% | 16 |
| Base clock | 3.8 GHz+52% | 2.5 GHz |
| Boost clock | 4.6 GHz | 4.7 GHz+2% |
| L2 cache | 6 MB | 10 MB+58% |
| L3 cache | 64 MB+220% | 20 MB |
Integrated GPU
| Spec | AMD Ryzen 9 3900X | Intel Core i5-14400 |
|---|---|---|
| iGPU | — | Intel UHD Graphics 730 |
| iGPU clock | — | 1,550 MHz |
Memory
| Spec | AMD Ryzen 9 3900X | Intel Core i5-14400 |
|---|---|---|
| Memory support | DDR4-3200 | DDR5-4800 / DDR4-3200 |
| Max memory | 128 GB | 192 GB+50% |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 9 3900X | Intel Core i5-14400 |
|---|---|---|
| PCIe version | 4 | 5+25% |
| CPU PCIe lanes | 24+20% | 20 |
Benchmarks
| Spec | AMD Ryzen 9 3900X | Intel Core i5-14400 |
|---|---|---|
| Geekbench 6 (single) | 1,540Bottom 33% | — |
| Geekbench 6 (multi) | 11,000Top 46% | — |
| Cinebench R23 (single) | 1,300Bottom 34% | — |
| Cinebench R23 (multi) | 18,300Top 31% | — |
| PassMark | 32,600+30%Top 37% | 25,033Bottom 47% |
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