No gaming gpus don't handle auto cad better. You want a workstation card as their drivers are cert differently. They are tested harder. Their clocks tend to be lower and more stable.
Nothing will piss off an engineer more than anything than basically working on a project and boom; the cad program crashes losing all their work. I've had to deal with this a lot with normal graphics cards until I moved them to workstation cards.
K4000 isn't a bad card; getting a little long; but it works. If you got a good price on it then cool; the firepros are good line also specially with autodesk going more opencl these days.
You might think the hardware is the same....its not; because of the dp enabled; and more importantly the drivers and they way they are certified to work with these programs.
Good Luck
Nothing will piss off an engineer more than anything than basically working on a project and boom; the cad program crashes losing all their work. I've had to deal with this a lot with normal graphics cards until I moved them to workstation cards.
K4000 isn't a bad card; getting a little long; but it works. If you got a good price on it then cool; the firepros are good line also specially with autodesk going more opencl these days.
You might think the hardware is the same....its not; because of the dp enabled; and more importantly the drivers and they way they are certified to work with these programs.
Good Luck