AMD Ryzen 7 7800X3D 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 7 7800X3D
The legendary gaming CPU. Even with the 9800X3D out, the 7800X3D remains a gaming monster and is now available at attractive prices. Perfect for AM5 builds on a tighter budget.
Buy on Amazon →
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.
Buy on Amazon →Spec Comparison
| Spec | AMD Ryzen 7 7800X3D | Intel Core Ultra 7 265K |
|---|---|---|
| Price (MSRP) | $449 | $394 |
| Cores / Threads | 8 / 16 | 20 / 20 |
| Performance Cores | 8 | 8 |
| Efficiency Cores | 0 | 12 |
| Base Clock | 4.2 GHz | 3.9 GHz |
| Boost Clock | 5.0 GHz | 5.5 GHz |
| L3 Cache | 96 MB | 30 MB |
| TDP | 120W | 125W |
| Socket | AM5 | LGA 1851 |
| Memory Support | DDR5-5200 | DDR5-6400 |
| Process Node | TSMC 5nm | TSMC 3nm |
| Cinebench R23 Multi | 18,500 | 35,600 |
| Cinebench R23 Single | 1,820 | 2,200 |
| Gaming Score | 94/100 | 78/100 |
| Productivity Score | 70/100 | 88/100 |
| Value Score | 90/100 | 76/100 |
The Verdict
Based on our benchmark database and scoring, the AMD Ryzen 7 7800X3D wins on gaming by about 16 points, the Intel Core Ultra 7 265K pulls ahead in productivity by 18 points. Overall the AMD Ryzen 7 7800X3D 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 7 7800X3D needs an AM5 motherboard, the Intel Core Ultra 7 265K needs LGA 1851, so these aren't drop-in swaps on the same platform.