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Crossfire Questions 2gb with 1 gb? Also is mobo good enough?

Last response: in Graphics & Displays
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April 30, 2013 3:05:08 PM

I am considering getting a new AMD Radeon HD 7850, however I currently have a 2 gb version of the card and only want to get a 1 gb version to crossfire. Is this a problem? Also my current motherboard is the GIGABYTE GA-990FXA-UD3 is it even worth setting up a crossfire system on it?
April 30, 2013 3:12:19 PM

Well you could, but that would down your VRAM to 1GB. If I were you, I'd try to sell the 7850 and buy a better and more powerful card.
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April 30, 2013 3:17:53 PM

That is a really good motherboard, but if I were you I would avoid crossfire at least until the latency issues are fixed (if ever). The 7850 is a good card by itself. I have a 7850 and a 7950, and the 7950 only works better for 2 of the 15 games that I play, the rest it's hard to tell the difference.
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April 30, 2013 3:45:32 PM

If you Crossfire with a 1gig card you will only be able to use 1gig as both cards will on use the lower amount.

I have a Crossfire HD 7950 and a Crossfire 7970 based rig and so far have not had any problems at all with Crossfire. I have read about the latency issues but have not had any problems with any of my games, over 300. Before the 7950 and 7970 cards I had a Crossfire HD 6950 setup and did not have any problems with that ether. Maybe I have just been lucky.
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April 30, 2013 4:31:52 PM

bryonhowley said:
If you Crossfire with a 1gig card you will only be able to use 1gig as both cards will on use the lower amount.

I have a Crossfire HD 7950 and a Crossfire 7970 based rig and so far have not had any problems at all with Crossfire. I have read about the latency issues but have not had any problems with any of my games, over 300. Before the 7950 and 7970 cards I had a Crossfire HD 6950 setup and did not have any problems with that ether. Maybe I have just been lucky.

I think when they say latency they are talking about the amount of milliseconds per frame. I guess crossfire has a much higher amount of ms per frame than NVidia sli has, but it's not always noticeable. If you have a high enough ms per frame count, it defeats the purpose of having high FPS, because it doesn't run as smooth as it should.
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April 30, 2013 4:50:42 PM

User sensitivity is subjective so bryon probably doesn't notice it much if at all.

What resolution are you currently gaming at? And what are you hoping to achieve performance wise? What games do you play? Is this just to crossfire? I would not suggest it without knowing more.
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