i3-10100 vs Ryzen 9 3900X
Full specification comparison between the Intel Core i3-10100 (2020) and the AMD Ryzen 9 3900X (2019).
i3-10100
Intel Entry-level
- ✓ Has integrated graphics
- ✓ Lower power draw (65 W vs 105 W)
- ✓ Cheaper at launch ($122 vs $499)
- ✓ Newer (2020 vs 2019)
- ✓ Better performance per dollar
Ryzen 9 3900X
AMD Entry-level
- ✓ ~16% faster on average
- ✓ More cores (12 vs 4)
- ✓ Larger L3 cache (64 MB vs 6 MB)
- ✓ Higher boost clock (4.6 vs 4.3 GHz)
Verdict: The Ryzen 9 3900X is roughly 16% faster than the i3-10100 on average — a clear, noticeable performance advantage.
Note they use different platforms (AM4 vs LGA1200), so this is a motherboard decision too, not just a CPU swap.
At launch pricing, the i3-10100 offers more performance per dollar, and the i3-10100 is the more power-efficient chip.
Estimated performance
Estimated average 1080p gaming performance compiled from publicly available benchmark data. Individual games vary.
Specs side by side
| Specification | i3-10100 | Ryzen 9 3900X |
|---|---|---|
| Family | Comet Lake | Zen 2 |
| Socket | LGA1200 | AM4 |
| Release year | 2020 | 2019 |
| Est. gaming perf. | ||
| Est. multi-core perf. | ||
| Est. single-core perf. | ||
| Cores | ||
| Threads | ||
| Max boost clock | ||
| L3 cache | ||
| TDP (base) | ||
| Integrated graphics | UHD 630 | None |
| Launch MSRP |
Green bars mark the better value in each row (for power and price, lower wins).
Frequently asked questions
Is the Ryzen 9 3900X better than the i3-10100?
Yes — based on aggregated benchmark data, the Ryzen 9 3900X is about 16% faster than the i3-10100 on average.
How much faster is the Ryzen 9 3900X than the i3-10100?
Roughly 16% on average in gaming workloads. The gap varies by title, resolution and settings.
Which processor is better value?
Comparing launch prices, the i3-10100 delivers more performance per dollar. Check current street prices, as market pricing often shifts the value equation.