Digital Foundry : 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. We've been putting the technology through its paces for the last ten days and we're impressed by the results.