Core Ultra 7 265K vs Ryzen 7 7800X3D
Short answer: which is best?
Core Ultra 7 265K is 44.2 % stronger than Ryzen 7 7800X3D. Core Ultra 7 265K ranks #6 of 84 measured processors at WhatFPS (13,700 CPU score over 2 verified runs). Ryzen 7 7800X3D ranks #29 of 84 measured processors at WhatFPS (9,502 CPU score over 6 verified runs). The numbers are measured in 8 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | Core Ultra 7 265K | Ryzen 7 7800X3D |
|---|---|---|
| CPU score (the processor's own performance) | 13,700 | 9,502 |
| Best rig (GAMING — whole PC) | 13,665 | 13,434 |
| Integer (MT) | 11.5 Gop/s | 6.8 Gop/s |
| Single-thread (1T) | 0.87 Gop/s | 0.62 Gop/s |
| Draw calls/s (DX11) | 11,952,062 | 6,727,198 |
| Cores / threads | 20 / 20 | 8 / 16 |
| L3 cache | 30 MB | 96 MB |
Fragz' verdict
The Core Ultra 7 265K takes a decisive lead over the Ryzen 7 7800X3D, outperforming it by 33.9% in overall CPU score. This lead is evident in its stronger single-thread performance at 0.76 Gop/s, which often dictates the FPS ceiling in games, and its impressive 99.5 FPS in the Supernova DX11 test. The Ultra 7 also shows significantly higher multi-threaded integer performance at 9.7 Gop/s and more than triple the draw calls per second, indicating better handling of background tasks and game complexity, likely due to its 20 cores and 20 threads. However, both CPUs have very thin sample sizes with only two and one verified runs respectively, so these results should be viewed with caution. While the Ryzen 7 7800X3D does boast a much larger 96 MB L3 cache, the Core Ultra 7 265K's higher peak clock speed of 5316 MHz and core count give it a clear edge in our current CPU benchmarks for raw processing power.
Generated September 29, 2026 from the 8 verified runs available then. The verdict is never silently rewritten — new numbers get a new verdict.
What the numbers mean
The CPU score is the processor's own performance — that is what we rank on. GAMING is the whole rig's score in the best PC we measured the processor in, and leans heavily on the graphics card. A strong processor in a weak PC gets a low GAMING score without being worse. We show both and never mix them.
All numbers come from our benchmark suite: four hand-built 3D scenes written directly against the graphics APIs in Rust, the same load on every PC. The methodology is open at https://whatfps.com/metodik
All measurements for Core Ultra 7 265K · All measurements for Ryzen 7 7800X3D