Ryzen 7 9800X3D vs Ryzen 9 3900X
Full specification comparison between the AMD Ryzen 7 9800X3D (2024) and the AMD Ryzen 9 3900X (2019).
Ryzen 7 9800X3D
AMD Enthusiast
- ✓ ~72% faster on average
- ✓ Larger L3 cache (96 MB vs 64 MB)
- ✓ Higher boost clock (5.2 vs 4.6 GHz)
- ✓ Has integrated graphics
- ✓ Cheaper at launch ($479 vs $499)
Ryzen 9 3900X
AMD Entry-level
- ✓ More cores (12 vs 8)
- ✓ Lower power draw (105 W vs 120 W)
Verdict: The Ryzen 7 9800X3D is roughly 72% faster than the Ryzen 9 3900X on average — a clear, noticeable performance advantage.
Note they use different platforms (AM5 vs AM4), so this is a motherboard decision too, not just a CPU swap.
At launch pricing, the Ryzen 7 9800X3D offers more performance per dollar, and the Ryzen 7 9800X3D 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 | Ryzen 7 9800X3D | Ryzen 9 3900X |
|---|---|---|
| Family | Zen 5 (X3D) | Zen 2 |
| Socket | AM5 | AM4 |
| Release year | 2024 | 2019 |
| Est. gaming perf. | ||
| Est. multi-core perf. | ||
| Est. single-core perf. | ||
| Cores | ||
| Threads | ||
| Max boost clock | ||
| L3 cache | ||
| TDP (base) | ||
| Integrated graphics | Radeon Graphics | None |
| Launch MSRP |
Green bars mark the better value in each row (for power and price, lower wins).
Frequently asked questions
Is the Ryzen 7 9800X3D better than the Ryzen 9 3900X?
Yes — based on aggregated benchmark data, the Ryzen 7 9800X3D is about 72% faster than the Ryzen 9 3900X on average.
How much faster is the Ryzen 7 9800X3D than the Ryzen 9 3900X?
Roughly 72% on average in gaming workloads. The gap varies by title, resolution and settings.
Which processor is better value?
Comparing launch prices, the Ryzen 7 9800X3D delivers more performance per dollar. Check current street prices, as market pricing often shifts the value equation.