README: NVIDIA support, which cards

README.md

@@ -30,11 +30,8 @@ Steam Machine.
      as OS Version (e.g. `steamos-3.9`), `steam-machine` as OS Codename and
      Steamify's version as OS Variant. The OS name stays CachyOS
      ([details](TECHNICAL.md#what-steams-system-settings-show)).
-   - **NVIDIA graphics cards** (GTX 16 / RTX 20 series or newer) get the same
-     conversion: Steamify installs a patched gamescope for them and starts
-     gaming mode at your monitor's own resolution and refresh rate. A newer
-     patched gamescope shows up as an **Update** in the menu
-     ([details](TECHNICAL.md#nvidia-graphics-cards)).
+   - **NVIDIA support**: GeForce GTX 16 series and RTX 20, 30, 40 and 50 series
+     (Turing and newer) ([details](TECHNICAL.md#nvidia-graphics-cards)).
 2. **SteamOS theme** - the Vapor look of SteamOS for the desktop, with
    **Add to Steam** in right-click menus
    ([details](TECHNICAL.md#steamos-desktop-look)).