AMD Ryzen 9 3900X vs Intel Core i3-8100
37.6Single-core26.3
54.2Multi-core23.7
78.3Gaming21.9
17 spec wins — AMD Ryzen 9 3900X1 spec wins — Intel Core i3-8100
InnoReviews verdict
AMD Ryzen 9 3900X wins this desktop processor face-off, 55.3 to 24, pulling ahead mainly in gaming (+56) and Multi-core (+31). Intel Core i3-8100 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 Single-core score: 38 vs 26
- Stronger Multi-core score: 54 vs 24
- Stronger gaming score: 78 vs 22
- 967% higher L3 cache: 64 MB vs 6 MB
- 500% higher threads: 24 vs 4
Reasons to pick the Intel Core i3-8100
- 38% lower Base TDP: 65 W vs 105 W
- Lower launch price: $117 vs $499
General
| Spec | AMD Ryzen 9 3900X | Intel Core i3-8100 |
|---|---|---|
| Announced | 2019 | 2017 |
| Socket | AM4 | LGA1151-v2 |
| Process | 7 nm+50% | 14 nm |
| Base TDP | 105 W | 65 W+38% |
| Max turbo power | 142 W | — |
| Unlocked multiplier | Yes | No |
| Cooler included | Yes | Yes |
Cores & Clocks
| Spec | AMD Ryzen 9 3900X | Intel Core i3-8100 |
|---|---|---|
| Cores | 12+200% | 4 |
| Performance cores | 12+200% | 4 |
| Efficiency cores | 0 | 0 |
| Threads | 24+500% | 4 |
| Base clock | 3.8 GHz+6% | 3.6 GHz |
| Boost clock | 4.6 GHz+28% | 3.6 GHz |
| L2 cache | 6 MB+500% | 1 MB |
| L3 cache | 64 MB+967% | 6 MB |
Integrated GPU
| Spec | AMD Ryzen 9 3900X | Intel Core i3-8100 |
|---|---|---|
| iGPU | — | Intel UHD Graphics 630 |
| iGPU clock | — | 1,100 MHz |
Memory
| Spec | AMD Ryzen 9 3900X | Intel Core i3-8100 |
|---|---|---|
| Memory support | DDR4-3200 | DDR4-2400 |
| Max memory | 128 GB+100% | 64 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 9 3900X | Intel Core i3-8100 |
|---|---|---|
| PCIe version | 4+33% | 3 |
| CPU PCIe lanes | 24+50% | 16 |
Benchmarks
| Spec | AMD Ryzen 9 3900X | Intel Core i3-8100 |
|---|---|---|
| Geekbench 6 (single) | 1,540+28%Top 63% | 1,200Top 83% |
| Geekbench 6 (multi) | 11,000+228%Top 35% | 3,350Top 90% |
| Cinebench R23 (single) | 1,300Top 59% | — |
| Cinebench R23 (multi) | 18,300+382%Top 24% | 3,800Top 92% |
| PassMark | 32,600+434%Top 26% | 6,100Top 90% |
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