Windows operating systems let you check your graphics card model via built-in applets such as the Device Manager or the DirectX Diagnostic Tool. Alternately, use third-party applications, like GPU-Z or Speccy, to find additional information such as the amount of dedicated memory built in to your graphics card.
Open the Power User menu -- press Windows-X -- and then select Device Manager. The Device Manager opens.
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Double-click Display Adapters to find the manufacturer and model name of your graphics card.
DirectX Diagnostic Tool
Open the Run box -- press Windows-R -- enter dxdiag into the Open field and then click OK. The DirectX Diagnostic Tool opens.
Click the Display tab. Find information about your video card listed under the Device section.
Install GPU-Z after downloading the GPU-Z installer from the TechPowerUp website. Launch the application and then click the Graphics Card tab. Find the model of your graphics card listed next to Name; the amount of video memory on your graphics card is listed next to Memory Size.
Download and install the free version of Speccy from the Piriform website. Launch the application and then click Summary to find the model name and video memory listed under Graphics. To find additional information about your graphics card, click the Graphics tab on the side menu.