Right now, NVIDIA’s Deep Learning Super Sampling (DLSS) is still the most effective method for taking low-resolution gameplay and turning it into high-resolution display output without impacting interactive performance. That may change with future updates to AMD’s open-source FSR 2.0, but for now, DLSS is king, with the best mix of performance
Source: Hot Hardware – NVIDIA DLSS Adds 12 Games And Claims 2X Boost In Hitman 3 At 4K