Why Older NVIDIA RTX GPUs Won’t Get New DLSS 3.0 Feature

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GPUs are an important part of any PC, and choosing the right one can be a tough decision. If you look at NVIDIA GPUs, you’re probably wondering if DLSS 3.0 is an available feature. DLSS 3.0 is the latest version of the technology, and it’s only available on RTX 4000 series GPUs. So if you have an older NVIDIA GPU, luck isn’t exactly on your side.

DLSS is a technology that uses the Tensor Cores found in NVIDIA GPUs to improve game performance while maintaining image quality. It’s a AI-Technology based on in-game frame scaling, allowing games to run at higher resolutions and frame rates.

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NVIDIA’s Ada GPUs will offer significant improvements over the company’s previous generation of GPUs, including a new architecture and support for NVIDIA’s Deep Learning Super Sampling 3.0 technology. However, NVIDIA does not intend to offer support for its older generation of RTX GPUs.


What is DLSS 3?

A revolutionary advancement in AI-powered graphics, DLSS 3 dramatically increases the fluidity of gameplay while maintaining excellent visual quality and responsiveness. Building on super resolution, DLSS incorporates NVIDIA Reflex low-latency technology for the best responsiveness and multi-frame optical generation to produce entirely new images. The fourth-generation NVIDIA Ada Lovelace architecture, which also powers the GeForce RTX 40-series graphics cards, is a source of super-sampling power.

The frame-generating convolutional auto-encoder uses two consecutive in-game frames and Ada’s optical flow accelerator. The optical flow field records the direction and speed of pixel movement between frames 1 and 2. Particles, reflections, shadows, lighting, and other pixel-level details that are not captured by the motion vector calculations in the game engines can be seen by the optical flow accelerator. The optical flow fields are calculated using two consecutive frames. Current and previous game frames and engine data such as motion vectors and depth are the four inputs.

The DLSS Frame Generation AI network selects how to use data from sequential game frames, optical flow fields, and game engine data like motion vectors to build intermediate frames for each pixel. DLSS 3 additionally uses a game engine motion vector to accurately track the movement of geometry in the scene, unlike the Optical Flow Accelerator, which registers pixel-level effects such as reflections. Image generation can accurately reconstruct geometry and effects using both engine motion vectors and optical flow to track motion.


Why is DLSS 3 not supported in previous generation RTX GPUs?

Since DLSS Frame Generation runs as a post-process on the GPU, DLSS3 does not work on previous generation cards. The improved optical flow analyzers on the RTX 4000 series cards are light years ahead of the previous generation models. Although older generation cards support OFA, they are not as fast or efficient as Ada.

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Although the latest generation RTX cards may support DLSS 3, NVIDIA has chosen to discontinue their support as they believe the DLSS they can achieve will be slow and have lower overall quality than could be achieved. on RTX4000. This decision may have contributed to a general disinterest in DLSS.



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