I have a rx 480 video card with 4gb. It uses up to 7gb in shared ram. If I purchase a second 4gb card will I get better perfor

[devin.johnson53]

I have a gaming rig. Need help maintaining it.

 

[bignastyid]

With Crossfire and SLI vram does not stack it mirrors so with 2 4Gb cards you'll still only have 4Gb of usable Vram.

 

[devin.johnson53]

So my next move should be to upgrade the video card to a 8gb version?