Is DLSS good enough in scaling resolution

so I’m doing a archviz walkthrough and my memory usage is 500-600 Mb in deficiency so it keeps giving me d3d crash
I saw a youtube video and it said that reducing resolution could help a lot, so I’m thinking if with DLSS I could render my video in 720p and upscale it to 1080p
I already have 2 shots in 1080p so will it have a difference in looks compared to the upscale version