1)Click Start.
2)On the Start menu, click Run.
3)In the Open box, type "dxdiag" (without the quotation marks), and then click OK.
4)The DirectX Diagnostic Tool opens. ...
5)On the Display tab, information about your graphics card is shown in the Device section.
Do you have an Intel sticker anywhere on your computer? Or an AMD sticker? If Intel, their site can detect which driver you have.
3rd Party Software
It's possible to detect your video card using software like "Video Card Detector". It's free, easy to use and can be downloaded from CNET:
http://download.cnet.com/Video-Card-Detector/3000-2094_4-76062374.html
Another way
What is 'dxdiag'?
"Dxdiag" is Microsoft's multimedia test program, which will identify your graphics card or chip set.
If you already have a graphics driver installed, you can use this procedure to identify the card via the driver name.
Windows XP:
Right click "My Computer"
Click properties
Click Hardware
Click Device Manager
Click Display Adapters
It will tell you what kind of card you have. BUT it's not specific becuase it will only tell you the series not a specific model of card ie... radeoon 6700 series or geforce 7000 series etc
If you have a laptop for exampleyou won't usually have a graphics card but it will be and an embedded graphics process either controller by one of the chipsets on the motherboard or in todays newer systems like the amd fusion the graphics are controlled by the apu/cpu itslef but of course you can get some infomation about the gpu in the same manner.
Windows 7:
Click Start
Click Control Panel
Click System
Click Device Manager
Click Display Adapters
4 GTX 580s in Quad-Sli
More information
Try opening the run command and typing 'dxdiag' This is a diagnostic tool for direct x. Here you can see how much system ram and the speed of your CPU. It will also open a bunch of tabs for video, audio, etc., too. You will see the amount of video RAM on the video tab and the chip type (Nvidia GforceX, Intel XXXX, ATI XXXX, etc.). If your computer has win2k or XP, you have direct X. If you use your computer for gaming, you have direct X. If you have an old win98 machine, you may not have directX installed. You can go through the Device Manager to get some info, then.
More information
Depending on your Operating System, check the device manager OR right click desktop and drill down to "Properties" then select the "settings" tab, then the "advance" tab.
Mac OS X
Apple>About This Mac>More Info>Graphics/Displays
Lion or Later Mac OS X User interface:
Apple>About This Mac>More Info>System Report>Graphics/Displays
Command Line (terminal): also used with other unix derived systems (linux, solaris, bsd etc)
Making sure Pciutils is installed....for mac os x (command iis native on some operating systems)
$ lspci
$ lspci -v
$ lspci -v | less
....................................... If all that is too much for you ......................................
There is a program called "TheOne Computer Inventory" which does all of the above and more. Go to Cnet, download & install it. It gives you a breakdown of all your software and all your hardware on your computer. Below is the link.
________________________________________________________________
Consider also this:
If using Windows, open your Device Manager (Easiest way, click Start and type Device Manager). Expand Display Adapters. It should be listed there.
If it says "Generic" or so forth, right-click it, go to properties. Go to details tab. Drop down the list to the Hardware ID's, then use Google to search for that hardware ID. That will tell you specifically what the card is (Vendor, model, etc.)