I am using Autocad 2013 with a gtx 460 that is not certified I want to buy another graphic card, should I buy a Quadro 600 or a k600? which is the diference between both and which is better? Is the k600 certified? because I could not see in the Autodesk certified hardware page. An other question is that if it will be work well with Inventor too.
Autodesk Supported Graphics Cards List and drivers tends to only have older cards that have been tested:
One of many online reviews of Vid Cards on the market: