Ryzen 9 9950X3D vs 13th Gen Core i9-13900K
Short answer: which is best?
Ryzen 9 9950X3D is 21.7 % stronger than 13th Gen Core i9-13900K. Ryzen 9 9950X3D ranks #1 of 102 measured processors at WhatFPS (16,059 CPU score over 6 verified runs). 13th Gen Core i9-13900K ranks #8 of 102 measured processors at WhatFPS (13,199 CPU score over 2 verified runs). The numbers are measured in 8 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | Ryzen 9 9950X3D | 13th Gen Core i9-13900K |
|---|---|---|
| CPU score (the processor's own performance) | 16,059 | 13,199 |
| Best rig (GAMING — whole PC) | 21,848 | 10,782 |
| Integer (MT) | 15.2 Gop/s | 12.5 Gop/s |
| Single-thread (1T) | 0.92 Gop/s | 0.88 Gop/s |
| Draw calls/s (DX11) | 16,365,486 | 9,342,700 |
| Cores / threads | 16 / 32 | 24 / 32 |
| L3 cache | 128 MB | 36 MB |
Fragz' verdict
The Ryzen 9 9950X3D takes the lead as the top CPU, scoring 9.6% higher than the 13th Gen Core i9-13900K. This advantage is clear in gaming-focused metrics, with the Ryzen chip delivering 131.4 FPS in Supernova DX11 compared to the Core i9's 116.4 FPS, alongside a higher single-thread performance of 0.92 Gop/s and superior draw calls per second. Its massive 128 MB of L3 cache, combined with a higher peak clock of 5625 MHz, likely contributes to its strong performance in scenarios where the CPU is the bottleneck, providing a smoother experience in many games. While the 13th Gen Core i9-13900K shows a slight edge in multi-threaded integer performance and has more cores, its single verified run means the sample size is thin, introducing uncertainty into its overall ranking.
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 Ryzen 9 9950X3D · All measurements for 13th Gen Core i9-13900K