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How do I check how much memory there is in my Nvidia Optimus Graphics card?

Question

I have a W510 with 12 GBs of RAM installed.  Recently, my motherboard had to be replaced under warranty service. My question is -  do the replacement motherboards differ from the ones that were originally installed? I ask this because when I run the DirectX Diagnostic Tool,  my approximate total Memory for my display shows as 474 MB, while I thought I remembered it being shown over 1000MB previously. 

 

How do I check how much memory there is in my Graphics card?

Answer

To check how much memory there is in your Graphics card, go to:

 

"NVIDIA Control Panel" --> "System Information" --> "Help" --> "Display" --> "Dedicated video memory", whcih then displays  the correct value of "1024MB DDR3".

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