Ryzen 9 7900X3D vs Ryzen 7 3800XT
Short answer: which is best?
Ryzen 9 7900X3D is 3.1 % stronger than Ryzen 7 3800XT. Ryzen 9 7900X3D ranks #45 of 96 measured processors at WhatFPS (8,209 CPU score over 1 verified runs). Ryzen 7 3800XT ranks #52 of 96 measured processors at WhatFPS (7,966 CPU score over 1 verified runs). The numbers are measured in 2 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | Ryzen 9 7900X3D | Ryzen 7 3800XT |
|---|---|---|
| CPU score (the processor's own performance) | 8,209 | 7,966 |
| Best rig (GAMING — whole PC) | 7,114 | 7,216 |
| Integer (MT) | 4.7 Gop/s | 4.3 Gop/s |
| Single-thread (1T) | 0.66 Gop/s | 0.53 Gop/s |
| Draw calls/s (DX11) | 12,235,584 | 7,440,597 |
| Cores / threads | 6 / 6 | 8 / 16 |
| L3 cache | 96 MB | 32 MB |
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 7900X3D · All measurements for Ryzen 7 3800XT