Some of you playing V: Rings of Saturn on AMD Radeon graphics cards have reported a persistent performance issue. Executing some actions in-game (such as entering the Dealer menu) will cause significant performance degradation. I have investigated this issue for the past week, and here are my findings. The root cause is a video memory leak in some OpenGL drivers for AMD Radeon cards, causing the VRAM usage to spike from the usual 1.2GB to over 4GB. Using up all of the VRAM causes excessive texture streaming and ultimately huge performance drops - with some reported cases of going from steady 60 FPS to single digits. I am confident that the bug is in AMD Radeon drivers themselves. During tests, we see this problem emerge on FX570 with driver versions 20.11.2 on Windows 10, but not on the same hardware running the Linux version of the drivers. If you are affected by this bug, please consider upgrading your drivers - we have numerous reports this fixes all performance issues. I have tried multiple workarounds, but I can only do so much to mitigate a faulty driver. If you are thinking about buying V and are unsure if you would be affected by this problem - please try the demo. The demo is indistinguishable from the full game, and your saves will carry over, so it is a perfect way of checking if the games performance is satisfactory. https://store.steampowered.com/app/949730/V_Rings_of_Saturn/