Nividia https://www.nvidia.com/en-us/geforce/news/battlefield-v-metro-exodus-ray-tracing-dlss/
TL:DR from the aricle above
DLSS is available with the following GPUs, with ray tracing turned on, at the resolutions listed below:
3840x2160: All RTX GPUs
2560x1440: RTX 2060, 2070, and 2080
1920x1080: RTX 2060 and 2070