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What is better: Dual x1900xtx or a 7950x2?

Last response: in Graphics & Displays
July 15, 2006 10:12:13 PM

I don't really know much about ATi crossfire, which is why I am asking. I've heard that dual x1900xtx in crossfire can outperform a 7950x2. Is this true?

More about : dual x1900xtx 7950x2

July 15, 2006 10:20:56 PM

I'd assume dual 1900XTX, although I have a feeling it'd be different for different games.

What screen do you have?
a b U Graphics card
July 15, 2006 10:35:04 PM

Crossfire X1900XT would win in performance and Image quality...but also cost you more money than a single GX2.
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July 19, 2006 3:24:18 AM

In most games, an X1900XTX CrossFire setup would shred a single 7950 GX2. Remember that it actually uses a pair of mobile graphics setups; hence, performance is only like that of a pair of 7900GTs, not GTXs.

In Oblivion, and possibly F.E.A.R. as well, a SINGLE X1900XTX could beat a 7950GX2, as due to the X1900's inordinate number of shaders, a single one has better shader power than a GX2, which has a pair of mobile G71 cores.
a b U Graphics card
July 19, 2006 4:09:18 AM

A 7950 GX2 will beat the x1900xtx once you get to a resolution of about 1600x1200 in most games (Oblivion and Fear Included). You simply can't run two 7950 GX2s because nVidia won't provide the drivers for end consumers. I think the gx2 has a slight advantage over other sli/crossfire solutions because the communication between the two gpus is a bit tighter. I beleive this shows up in Black and White 2.

One disadvantage a gx2 or any other crossfire/sli solution may have is frame latency. Because most configurations prefer the the gpus to alternate frames you end up with a triple buffering situation. Which means the time between when a frame starts to draw and when you actually see it could be double that of a single GPU solution. I assume this isn't the case in a split frame (scissor) setup. It's also a good reason to avoid a quad sli