Why FH6 Triggers Low Video Memory Warnings
Forza Horizon 6's upgraded ForzaTech engine with ray-traced global illumination is significantly more VRAM-intensive than FH5. The "low video memory" warning and related startup crashes occur because:
- Environment Geometry Quality on Extreme uses high-poly models across the entire open world, consuming up to 4–6 GB VRAM
- Environment Texture Quality on Extreme loads 4K textures for building surfaces, roads, and vegetation, adding another 2–3 GB
- Combined with ray tracing, total VRAM usage can exceed 10 GB at 4K Extreme, overflowing 8 GB GPUs and causing instant crashes
Step-by-Step Fix
- Lower Environment Geometry Quality: Go to Settings → Video → Advanced Graphics. Set "Environment Geometry Quality" to High or Medium (not Extreme). This reduces the polygon count for world objects and cuts VRAM usage by 2–3 GB with minimal visual difference during gameplay.
- Lower Environment Texture Quality: In the same menu, set "Environment Texture Quality" to High or Medium. Extreme textures load 4K-resolution surfaces which are barely noticeable at racing speeds but consume massive VRAM.
- Close Background Apps: Before launching FH6, close:
- Epic Games Launcher — known to reserve GPU resources even when minimized
- Web browsers with multiple tabs (each tab uses some GPU memory)
- Discord hardware acceleration (disable in Discord settings if needed)
- Disable TV Motion Smoothing: If playing on a TV connected to your PC, disable Motion Smoothing / Auto Motion Plus / TruMotion in your TV's picture settings. This can interfere with FH6's frame pacing and cause perceived stuttering that feels like a VRAM issue.
VRAM Usage Reference
At 1440p with High settings (not Extreme), FH6 typically uses 5–7 GB VRAM. For 4K, aim for at least 12 GB VRAM if you want to keep settings at High+.
Recommended Settings by GPU
| GPU | VRAM | Recommended Preset | Expected FPS |
|---|---|---|---|
| RTX 4090 / RX 7900 XTX | 16–24 GB | Extreme (4K) | 60–80 FPS |
| RTX 4070 Ti / RX 9070 XT | 12–16 GB | High (4K) / Extreme (1440p) | 60–100 FPS |
| RTX 3070 / RX 6800 | 8–16 GB | High (1440p) | 60–90 FPS |
| RTX 2060 / RX 6600 | 6–8 GB | Medium (1080p) | 45–60 FPS |
| GTX 1060 / RX 580 | 4–6 GB | Low (1080p) | 30–45 FPS |
Extreme Caution
Running FH6 at Extreme settings on an 8 GB GPU at 4K will cause VRAM overflow and crashes. The game does not gracefully handle running out of VRAM — it will either crash to desktop or show a persistent "low video memory" warning that won't go away until you restart.
Still having performance issues? See our stuttering fix guide →