Why does my game crash on certain graphics cards?

Because GPUs and their drivers vary enormously in how they handle rendering, shaders, features, precision, and VRAM, so your code can hit a behavior one GPU handles differently or can't handle, crashing on that GPU but not others. A shader that works on your GPU might crash another, or a feature you use might be missing on some hardware. These GPU-specific crashes won't reproduce without the affected GPU, so capturing crashes tagged by GPU from real players reveals which graphics cards crash and points at the cause.

How do I fix a crash that only happens on some GPUs?

Capture crashes tagged by GPU and driver, and look at the pattern, all on one GPU family points at a GPU-specific cause. Then fix or guard it: fix or substitute the problematic shader, provide a fallback for a missing or differently-implemented feature, reduce VRAM usage if it's a memory limit, or guard the problematic rendering path on the affected GPUs. Since you likely can't reproduce a crash on a GPU you don't have, you fix it from the captured GPU-tagged data and the cross-GPU pattern.

What Causes Crashes on Specific GPUs?

Quick answer: Crashes on specific GPUs come from differences in how GPUs and drivers handle rendering: shaders one GPU mishandles, missing or differently-implemented features, driver bugs, and VRAM limits. The bug is in your code's interaction with that GPU's behavior.

Crashes that hit only certain GPUs are baffling because they depend on graphics hardware you may not have. They come from the ways GPUs differ. Here's what causes crashes on specific GPUs.

Why GPUs Differ Enough to Crash

GPUs and their drivers vary enormously in how they handle rendering, and a crash on a specific GPU means your code hits a behavior that GPU handles differently or can't handle.

Shaders a GPU mishandles, a shader that runs fine on one GPU but crashes or fails on another
Missing or differently-implemented features, a rendering feature some GPUs lack or implement differently
Driver bugs, defects in a specific GPU's driver that crash under certain operations
VRAM limits, a GPU with less video memory crashing when you exceed it
Differing precision or behavior, GPUs handling math, precision, or edge cases differently
Vendor differences, GPUs from different vendors behaving differently

The bug is in your code's interaction with a particular GPU's behavior, so it crashes on GPUs with that characteristic and not others.

Why You Can't Reproduce Them

A crash specific to a GPU you don't have simply won't happen for you, you lack the triggering hardware. GPU-specific crashes resist normal debugging because you can't reproduce them without the affected GPU and driver, so they look random until you see they share a GPU.

Bugnet captures crashes tagged by GPU and driver from real players, so GPU-specific crashes surface with the hardware context. Seeing that crashes cluster on a particular GPU is the key clue that it's a GPU-specific issue and which GPU.

Finding and Fixing GPU-Specific Crashes

Finding them means capturing crashes tagged by GPU and looking at the pattern, all on one GPU family points at a GPU-specific cause. Then you fix or guard it, fix or substitute the problematic shader, provide a fallback for the missing feature, reduce VRAM use, or guard the path on the affected GPUs.

Bugnet groups crashes and shows the GPU breakdown, so a GPU-specific crash stands out as a cluster. So crashes on specific GPUs come from shaders, features, driver bugs, and VRAM limits that differ by GPU, and finding them means capturing crashes by GPU to reveal which hardware fails and why.

GPU-specific crashes come from shaders, features, driver bugs, and VRAM limits that differ by GPU. The bug is in your code's interaction with that GPU's behavior. Capture crashes by GPU to find which hardware fails, then fix or guard the path.