is there any performance gains with the amd 7970 sapphire 6gb over the standard amd 7970 3gb. Is there any benefit with 3 extra Gb. I will be video editing, special effects, and rendering at 2500 x 1600 res. with 3 or more monitors.
I will be running 2 cards in crossfire.
Having different amount's of memory on a Graphics Card is like a buffer rate , it's best to have as much as you need. The 6gb version might be for EyeFinity and for heavy editing and the 3gb might be for hardcore gaming. 3gb is very good though!
There is ZERO reason to spring for a pair of 6GB cards over 3GB cards. There isn't a single test out there that shows a benefit to the extra vram.
Even a pair of 7970s doesn't have the raw muscle needed to deal with the resolutions and graphics settings that would need over 3GB vram (and to my knowledge there is not a single game that suffers from having 3GB vram at any setting/resolution).
thanks for all the help guys, i think what i'm hearing is that the 6gb is just a waist of 100 extra dollars.
And there is no performance gain with extra Gb. I think i'll just go with 2 sapphire 7970 3Gb versions.