Hi everyone, so I'm looking for a new GPU for my desktop. I haven't kept up with developments since... forever, so I don't know what's good or bad in terms of model numbers. I have around a US$100 budget (± $20), and I'm not really looking for anything for gaming. I'd preferably want to go with an Nvidia GTX model. For most of the time I won't be doing anything intensive, but sometimes I may want to play older games or run CAD software / 3D simulations. Thanks for the help!
Edit: I currently have a GTX 465 installed and it's causing some issues. I'm looking to upgrade to something with cooler temps than 85° at idle and preferably doesn't use a blower design. Thanks to everyone who's provided suggestions so far.