i5-10400F vs Ultra 7 265K
Full specification comparison between the Intel Core i5-10400F (2020) and the Intel Core Ultra 7 265K (2024).
i5-10400F
Intel Entry-level
- ✓ Lower power draw (65 W vs 125 W)
- ✓ Cheaper at launch ($157 vs $394)
- ✓ Better performance per dollar
Ultra 7 265K
Intel High-end
- ✓ ~46% faster on average
- ✓ More cores (20 vs 6)
- ✓ Larger L3 cache (30 MB vs 12 MB)
- ✓ Higher boost clock (5.5 vs 4.3 GHz)
- ✓ Has integrated graphics
Verdict: The Ultra 7 265K is roughly 46% faster than the i5-10400F on average — a clear, noticeable performance advantage.
Note they use different platforms (LGA1851 vs LGA1200), so this is a motherboard decision too, not just a CPU swap.
At launch pricing, the i5-10400F offers more performance per dollar, and the i5-10400F 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 | i5-10400F | Ultra 7 265K |
|---|---|---|
| Family | Comet Lake | Arrow Lake |
| Socket | LGA1200 | LGA1851 |
| Release year | 2020 | 2024 |
| Est. gaming perf. | ||
| Est. multi-core perf. | ||
| Est. single-core perf. | ||
| Cores | ||
| Threads | ||
| Max boost clock | ||
| L3 cache | ||
| TDP (base) | ||
| Integrated graphics | None | Intel Graphics |
| Launch MSRP |
Green bars mark the better value in each row (for power and price, lower wins).
Frequently asked questions
Is the Ultra 7 265K better than the i5-10400F?
Yes — based on aggregated benchmark data, the Ultra 7 265K is about 46% faster than the i5-10400F on average.
How much faster is the Ultra 7 265K than the i5-10400F?
Roughly 46% on average in gaming workloads. The gap varies by title, resolution and settings.
Which processor is better value?
Comparing launch prices, the i5-10400F delivers more performance per dollar. Check current street prices, as market pricing often shifts the value equation.