I know that this is an old thread but I would know what are the graphic card requirements for DAZ Studio Pro? I read that DAZ at version 4.22+ requires nVidia RTX graphic cards and the nVidia Studio Drivers.

I have nVidia GTX 970 card with dedicated 6 GB, plus the 16 GB system RAM. Also, SSD hard disk drive. At the moment, I use DAZ 4.24 but my system does not work properly as soon as I use Iray Render (in View Port and when clicking on 'Render'). My Windows 10 begins to make loud noises, slows down other applications (especially Windows Explorer) so that it is impossible to do other things when DAZ is still rendering.

Too bad that Daz3d.com does not allow to download older DAZ Studio versions. I have, of course, DAZ account.
My question is, is there a(ny) way to get older DAZ Studio versions? Or, is it "illegal" to download older DAZ Studio version?? If YES, WHY??

What was the LATEST version that worked with nVidia GTX, before RTX requirements?