On September 27, 2026, Vapor posted a GTA V benchmark on iPhone 18 Pro Max, reporting an average of 66 frames per second (FPS) in city-driving scenes and 80 FPS in other scenes. Vapor described the project as a work in progress, with minor issues still to fix.
Vapor’s reported frame rates differ by scene
The two averages Vapor reported apply to separate scene categories:
| Scene category | Reported average |
| City-driving scenes | 66 FPS |
| Other scenes | 80 FPS |
The reported graphics settings
Vapor listed the test at 1080p with DirectX 11. The stated settings included high textures, FXAA, 16× anisotropic filtering, sharp shadows, and MSAA turned off. Population density was set to 75%, distance scaling to 50%, and all remaining settings to Normal.
A separate RPCS3 test uses a different software route
A separate GTA V demonstration on iPhone 18 Pro Max used RPCS3, a PlayStation 3 emulator. Its frame-rate display generally fluctuated between 10 and 30 FPS, and the setup used an external magnetic cooler. An infrared temperature gun aimed at the back of the phone read about 103°F.
Vapor’s benchmark was presented as running in Vapor, while this separate demonstration used RPCS3. They are distinct tests with different software routes, not two results from a shared benchmark.
Vapor described the project as a work in progress
Vapor said minor issues remained to fix. The post presented development work, not a finished consumer release of GTA V for iPhone.
