AMD Ryzen 9 9900X vs Intel Core Ultra 7 265K
Head-to-head CPU comparison: cores, clocks, cache, benchmarks, and value. Which belongs in your next build?
AMD Ryzen 9 9900X
12 Zen 5 cores at a productivity-friendly price. Great for streamers and creators who want strong multithreaded performance without paying X3D premium.
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Intel Core Ultra 7 265K
Strong productivity chip at a reasonable price. 20 cores chew through rendering and compilation. Gaming is solid but not class-leading.
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| Spec | AMD Ryzen 9 9900X | Intel Core Ultra 7 265K |
|---|---|---|
| Price (MSRP) | $499 | $394 |
| Cores / Threads | 12 / 24 | 20 / 20 |
| Performance Cores | 12 | 8 |
| Efficiency Cores | 0 | 12 |
| Base Clock | 4.4 GHz | 3.9 GHz |
| Boost Clock | 5.6 GHz | 5.5 GHz |
| L3 Cache | 64 MB | 30 MB |
| TDP | 120W | 125W |
| Socket | AM5 | LGA 1851 |
| Memory Support | DDR5-5600 | DDR5-6400 |
| Process Node | TSMC 4nm | TSMC 3nm |
| Cinebench R23 Multi | 32,400 | 35,600 |
| Cinebench R23 Single | 2,180 | 2,200 |
| Gaming Score | 88/100 | 78/100 |
| Productivity Score | 91/100 | 88/100 |
| Value Score | 80/100 | 76/100 |
The Verdict
Based on our benchmark database and scoring, the AMD Ryzen 9 9900X wins on gaming by about 10 points, the AMD Ryzen 9 9900X pulls ahead in productivity by 3 points. Overall the AMD Ryzen 9 9900X comes out ahead in this matchup, but the right pick depends on what you're actually building: gaming-first rigs favor higher single-thread and 3D V-Cache designs, while streaming and content-creation rigs benefit more from raw multi-core output. Note the socket mismatch — the AMD Ryzen 9 9900X needs an AM5 motherboard, the Intel Core Ultra 7 265K needs LGA 1851, so these aren't drop-in swaps on the same platform.