Nvidia has released DLSS 4.5, featuring a new Super Resolution upscaling model called Model M, which is available for over 400 games via the DLSS Override feature. This model uses a second-generation Transformer AI architecture, significantly improving image quality compared to earlier versions. It requires five times the compute power of the original transformer model and has been trained on a high-fidelity dataset for better scene interpretation. Users may experience slight performance impacts, especially on older graphics cards, but testing on an RTX 4080 Super showed minimal frame rate drops. A recent demonstration showcased DLSS 4.5's ability to upscale Red Dead Redemption 2 from 240p to 720p. Users can access DLSS 4.5 by updating the Nvidia App and selecting 'DLSS Override - Model Presets' in the settings.