Search for Belarc Advisor, small, free, save PC profile generated as "web page only" to desktop. It will list some hardware and all programs with keys or codes.
Same with Aida32, small, free, gives a lot of hardware info, including video RAM. I bet it's only 4mb, maybe listed as 3.5mb because it shares some of the ram.
Update to DirectX 8.1 or higher, plus critical updates, and start>run>dxdiag and go to display tab.
I have an Emachines model that is a couple years old, and want to buy Tiger Woods 2005 for my PC, but don't want to if it will run poorly. I want to know what video cards I have and so forth to see if it matches with the games minimum requirements.