Ultra 9 285K vs Ryzen 9 3900X
Full specification comparison between the Intel Core Ultra 9 285K (2024) and the AMD Ryzen 9 3900X (2019).
Ultra 9 285K
Intel High-end
- ✓ ~45% faster on average
- ✓ More cores (24 vs 12)
- ✓ Higher boost clock (5.7 vs 4.6 GHz)
- ✓ Has integrated graphics
- ✓ Newer (2024 vs 2019)
Ryzen 9 3900X
AMD Entry-level
- ✓ Larger L3 cache (64 MB vs 36 MB)
- ✓ Lower power draw (105 W vs 125 W)
- ✓ Cheaper at launch ($499 vs $589)
Verdict: The Ultra 9 285K is roughly 45% faster than the Ryzen 9 3900X on average — a clear, noticeable performance advantage.
Note they use different platforms (LGA1851 vs AM4), so this is a motherboard decision too, not just a CPU swap.
At launch pricing, the Ultra 9 285K offers more performance per dollar, and the Ultra 9 285K 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 | Ultra 9 285K | Ryzen 9 3900X |
|---|---|---|
| Family | Arrow Lake | Zen 2 |
| Socket | LGA1851 | 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 | Intel Graphics | None |
| Launch MSRP |
Green bars mark the better value in each row (for power and price, lower wins).
Frequently asked questions
Is the Ultra 9 285K better than the Ryzen 9 3900X?
Yes — based on aggregated benchmark data, the Ultra 9 285K is about 45% faster than the Ryzen 9 3900X on average.
How much faster is the Ultra 9 285K than the Ryzen 9 3900X?
Roughly 45% on average in gaming workloads. The gap varies by title, resolution and settings.
Which processor is better value?
Comparing launch prices, the Ultra 9 285K delivers more performance per dollar. Check current street prices, as market pricing often shifts the value equation.