NVIDIA has unveiled DLSS 3.5 with Ray Reconstruction, which further leverages GPU tensor cores to improve ray tracing performance with artificial intelligence. On AMD's side, FSR 3 now includes Fluid Motion Frames technology as a response to DLSS 3 frame generation.
DLSS 3.5 (NVIDIA)
Nvidia has unveiled DLSS 3.5 with a new AI-powered ray tracing reconstruction technique designed to improve ray tracing quality and performance. Unlike DLSS 3's frame generation, which is limited only to RTX 40-series GPUs, DLSS 3.5 will improve ray tracing across all RTX series GPUs, starting with the RTX 20 series.
It has been found by NVIDIA that using the denoisers removes essential data needed for upscaling, causing color data loss during denoising and subsequent upscaling. In addition, traditional methods can lead to inaccurate lighting effects due to the accumulation of pixels from previous frames, often causing ghosting.
Denoisers also contribute to poor global illumination and lower quality reflections, as there is not enough data for interpolation. Upgrading to DLSS 3.5 will greatly reduce this phenomenon.
Replacing denoisers manually implemented by game developers with a specially designed AI model means that ray tracing is faster overall than before. This is demonstrated by NVIDIA in Alan Wake 2, one of the most anticipated games of the year, when comparing DLSS 3 with DLSS 3.5 side by side.
Cyberpunk 2077: Phantom Liberty will also benefit from DLSS 3.5, showing an improvement in frame rates and ray tracing quality. Previously, the game introduced Ray Tracing Overdrive mode with Path Tracing, simulating refraction and reflection. DLSS 3.5 further improves efficiency and visual quality, allowing full use of ray tracing capabilities without sacrificing performance.
DLSS 3.5 will be launched with the most intensive ray tracing games in mind first and will certainly be implemented by other developers in the coming months. It remains to be seen how many games will be supported by NVIDIA's new AI learning model, especially for titles that really push hardware to the limit.
FSR 3.0 (AMD)
After a long wait, at Gamescom 2023 AMD finally announced the new version of its “FidelityFX Super Resolution” upscaler, which will work on all graphics cards, not just those produced by AMD.
AMD's best new feature is called “fluid motion frames”, it will use different AI features that will allow it to generate extra frames without losing performance. As a result, gamers will be able to increase the graphics quality of their games by enabling ray tracing and still get a much higher number of frames per second.
According to developers, this feature is likely to arrive in the first quarter of 2024. In addition, the company has partnered with various gaming giants to develop games using FSR 3.0 and help create a better experience for all players.
FSR 3 also introduces Radeon Anti-Lag+, to help counteract latency added by inserted frames, similar to how NVIDIA requires DLSS 3 games to include NVIDIA Reflex.
AMD will modify its driver software by adding HYPR-RX, a one-click solution for game optimization. The Radeon software will be able to suggest the optimal settings to run a game with high number of frames per second and at the highest possible quality.
Another important accessibility feature is that AMD software will be released under the MIT license, a permissive free software license that allows anyone to use, copy, modify, and so on, for free. As a result, developers will not need permissions to implement FSR 3 in their games.
AMD already has 15 game developers and publishers who have already pledged to support AMD FSR 3, and more are expected to join in the future.