Hi,I have plans to buy a new graphic card and I need help with choosing right one. I am using Infraworks for 3D presentations and Civil 3D for road design. At the moment I have HD 4850 card and it works fine with infraworks, but it is very slow in Civil 3D. Since I have low budget, I am planning to buy GTX 650 2GB or GTX 750 1GB. My question is did I will get better performance in Civil with one of these cards, or better solution is to buy Quadro 2000 (which I can buy for little more money, but it was used). Please note that I am using Infraworks more than Civil 3D, and performance of infraworks are more important to me. I hope that I have succeeded to explain my problem. Thank in advance for help!

Well, I'd go with a certified card by Autodesk: check this out, sir.
:)

Thanks for reply, sir, but I know that Quadro 2000 is certified from Autodesk for Infrastructure suit, and still I found on one of benchmarks this results for both Quadro 2000 and GTX 650 in Cadalyst (I assume, since Civil 3D use Autocad as platform, this test is suitable for Civil, too):http://www.pugetsystems.com/labs/articles/AutoDesk-AutoCAD-2013-GPU-Acceleration-164/It says that GTX 650 is little faster than 2000 in AutoCAD, but it is not that precise (what that exactly means?).