Nvidia DLSS 3 - a new dimension in AI upscaling. Here's digitalfoundry with the first preview on the new performance-enhancing technology:
Two key PC technologies started to emerge towards the end of 2018 - hardware-accelerated ray tracing and machine learning based super-sampling. Forming the basis of Nvidia's brand change from GTX to RTX, the technologies have continued to be refined across the years. With the arrival of the new RTX 4000 graphics line, we have a new innovation in performance-boosting technology. DLSS 3 adds AI frame generation to its existing DLSS 2-based spatial upscaling.
At the nuts and bolts level, DLSS 3 is actually a suite of three different technologies Nvidia has spent years developing. It starts with the existing, highly successful DLSS 2 - currently our top pick for image-reconstruction based upscaling . This is joined by DLSS frame generation.
In looking at how the buffering works for frame generation, I'm reminded of the old AFR techniques used with SLI - where two graphics cards worked in tandem rendering every other frame. This had a similar increase in latency, but without the mitigation of Reflex. So, in effect, DLSS frame generation on the same GPU is taking the place of the second graphics card from the SLI days. Still, the bottom line is that the likes of DLSS 2/FSR 2.
Improved performance is the point of the exercise - but also its application in enabling new experiences. Portal RTX is built on Nvidia's new RTX Remix platform, which looks like some kind of crazy science fiction dream. Essentially, Remix is integrated into older titles, allowing for fully path-traced renditions of classic PC games.
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