To the best of my knowledge Quadro FX5800 supports shader model 5. But it’s DirectX feature level is only 10_0. You will need feature level 11_0 to work with UE
Geforce Kepler series and later should be compatible.
Here is a link to refer the feature level requirements:
Thanks for the answer. So to run UE5 with my actual PC configuration, what exact GPU model should I get avoiding wasting money and getting bottlenecks?
I use GPU mainly for CAD, Second Life, PhotoEditing (PaintShopPro 2022-Exposure-PortraitPro…)