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How does crossfire/sli memory work?

Last response: in Graphics & Displays
February 14, 2011 11:25:33 PM

If I have to 1gb cards in crossfire or SLI, is that essentially the same memory wise as having a 2gb single card? Just talking about the memory here, do the 2x 1gb cards function the same with their combined 2gb memory as a single card with 2gb memory?
a c 358 U Graphics card
a b } Memory
February 14, 2011 11:29:18 PM

No. 1GB of VRAM for both cards still means 1GB of VRAM in total because the same textures are loaded to both cards.
April 10, 2011 9:02:12 AM

1G card running Sli or Crossfire mode..its still running on 1G memory..
only memory bandwidth will double