13th Gen Core i9-13900H vs Ryzen 9 7900X3D
Short answer: which is best?
13th Gen Core i9-13900H is 21.6 % stronger than Ryzen 9 7900X3D. 13th Gen Core i9-13900H ranks #34 of 107 measured processors at WhatFPS (9,983 CPU score in its best run — best of 3 rigs, 3 verified runs). Ryzen 9 7900X3D ranks #51 of 107 measured processors at WhatFPS (8,209 CPU score in its best run — 1 rig, 1 verified run). Each part is shown at its best run, picked from 4 verified WhatFPS runs — measured, not estimated, not self-reported.
Measured comparison
| Metric | 13th Gen Core i9-13900H | Ryzen 9 7900X3D |
|---|---|---|
| CPU score, best run (the processor's own performance) | 9,983 | 8,209 |
| Best rig (GAMING — whole PC) | 6,652 | 7,114 |
| Integer (MT) | 6.9 Gop/s | 4.7 Gop/s |
| Single-thread (1T) | 0.79 Gop/s | 0.66 Gop/s |
| Draw calls/s (DX11) | 11,581,041 | 12,235,584 |
| Cores / threads | 14 / 20 | 6 / 6 |
| L3 cache | 24 MB | 96 MB |
Fragz' verdict
The Ryzen 9 7900X3D takes a solid win in this CPU showdown, leading the 13th Gen Core i9-13900H by 22.4% in overall CPU score. For gamers, this translates to significantly higher performance, with the Ryzen chip delivering 102 FPS in the Supernova DX11 test compared to the 13th Gen Core i9's 69.6 FPS. This lead is backed by stronger single-thread performance at 0.66 Gop/s and nearly 4 million more draw calls per second, crucial for pushing frame rates. The Ryzen 9's massive 96 MB of L3 cache, significantly more than the 13th Gen's 24 MB, likely plays a key role in its gaming prowess. However, it's important to note that the Ryzen 9 7900X3D's data comes from only one verified run, so the sample is thin and results may vary. While the 13th Gen Core i9-13900H has more cores and threads, the Ryzen 9 7900X3D's superior single-thread, draw call, and Supernova DX11 performance makes it the clear choice for gaming based on our data.
Generated November 10, 2026 from the 4 verified runs available then. The verdict is never silently rewritten — new numbers get a new verdict.
What the numbers mean
The headline score is the part's best measured run, and the measurements under it come from that same run. It shows what the part has been proven to do — not what an average rig gets out of it. 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 13th Gen Core i9-13900H · All measurements for Ryzen 9 7900X3D