Dedicating RAM to video card

Not sure if this is the best forum for this. If it is not, can you point me in the general direction of the best one?

I would like to play a video game that needs 1GB of dedicated RAM to the graphics card. When I use the "Can I run it" site, it tells me that there is only 32 MB of dedicated graphics RAM. When I run the game it is unbearably choppy and I am not able to play it.

I have, but cannot post Computer Properties and dxdiag screenshots. The Display screenshot says that I have just about 4GB of RAM for graphics. The computer is running 64bit Win 10 and has 8GB of installed RAM. I have checked all the drivers, they are up to date. I have attempted to go in to the BIOS and change the amount, as recommended by some Google searchage, but there is no option in there that I can find. I've selected every single option I can, just in case it's lurking somewhere I wouldn't expect to find it. Is there anything else that I can do, other than replacing the card, to satisfy the game requirements?

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