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During NVIDIA's CES 2025 presentation in January, alongside next-generation GPUs, the company introduced the fourth edition of its DLSS technology. Almost all the improvements in its features are powered by AI, such as frame generation and enhanced image quality. NVIDIA has now launched DLSS 4 as a plug-in for Unreal Engine 5, with support for version 5.5.
Here's a recap of what it includes:
- DLSS Multi Frame Generation boosts frame rates by using AI to generate up to three frames per rendered frame, powered by GeForce RTX 50 Series and fifth-generation Tensor Cores;
- DLSS Frame Generation boosts performance by using AI to generate frames while maintaining great responsiveness with NVIDIA Reflex;
- DLSS Ray Reconstruction enhances image quality by using AI to generate additional pixels for intensive ray-traced scenes. DLSS replaces hand-tuned denoisers with an NVIDIA supercomputer-trained AI network that generates higher-quality pixels between sampled rays;
- DLSS Super Resolution boosts performance by using AI to output higher-resolution frames from a lower-resolution input. DLSS samples multiple lower-resolution images and uses motion data and feedback from prior frames to construct high-quality images;
- Deep Learning Anti-Aliasing provides higher image quality with an AI-based anti-aliasing technique. DLAA uses the same Super Resolution technology developed for DLSS, constructing a more realistic, high-quality image at native resolution.
The DLSS 4 plug-in for Unreal Engine 5 provides access to Multi Frame Generation, Frame Generation, Ray Reconstruction, Super Resolution, DLAA, Reflex Low Latency, and NVIDIA Image Scaling. While DLSS 4 supports GPUs starting from the RTX 20 series, not all of its features are available on those older generations.
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