Enabling NVIDIA DLSS 4.5 can significantly boost performance and image quality. This guide covers how to activate it in supported titles and how to force-upgrade older games using the DLL swap method.
Prerequisites:
- NVIDIA GeForce Game Ready Driver 565.00+
- Windows 11 (23H2 Update) or later for Hardware Scheduling
- RTX 40/50 Series GPU for Frame Generation features
Method 1: In-Game Settings (Official Support)
For games that officially support DLSS 4.5, activation is simple:
- Launch the game and open the Graphics or Video settings menu.
- Locate the Upscaling Technology section.
- Set "DLSS" to On.
- Choose a Quality Mode:
- Quality: Best for 1440p/4K. Slight FPS boost, sharpest image.
- Balanced: Great middle ground.
- Performance: Recommended for 4K/8K to maximize FPS.
- Toggle DLSS Frame Generation to "On" (Requires RTX 40/50).
- Set Ray Reconstruction to "On" if using Ray Tracing.
Method 2: Force Update via DLSS Swapper
If a game ships with an older version (like DLSS 2.4 or 3.7), you can manually inject the DLSS 4.5 library to gain better image stability and reduced ghosting.
- Download and install DLSS Swapper.
- Run the application and wait for it to scan your Steam/Epic/GOG library.
- Click on the game you wish to update (e.g., The Witcher 3).
- In the "DLSS Version" dropdown, select 4.5.10.0 (or latest).
- Click Swap. The notification will confirm success.
Troubleshooting DLSS 4.5
Game Crashes on Startup
Arguments in the newer DLL might conflict with older game engine code. If this happens:
- Revert to the original DLL using DLSS Swapper's backup feature.
- Try an intermediate version like DLSS 3.7.10.
"Frame Generation" Option is Greyed Out
This usually happens for two reasons:
- Hardware Limit: You are using an RTX 20/30 series card. These support Super Resolution but NOT Frame Generation.
- Windows Setting: Ensure "Hardware-accelerated GPU scheduling" is enabled in Windows Graphics Settings.