670's or 7970's

7970 without a doubt, last i looked in reviews it scaled better in multi configs and with the 12.11 drivers it should have increase the scaling performance i would imagine. Also another plus is there cheaper.
 
I have a 7970 and run on 3 screens, I am currently changing out to nvidia. Tried crossfire and the microstuttering would drive me crazy and the tearing on one screen has already done so. I would go with the 670's
 
From what I've heard about mutli-GPU configuration and such with the HD7xxx cards, I would say a GTX670 would probably be a better choice.

In terms of pure performance, the 7970's are definitely faster as already said. Recent driver updates and such have pushed the performance of the card significantly. However, the card seems to have a larger deviation in framerate values - which can be seen in certain games. With a single card setup this is often perfectly fine, however it seems like such issues become more predominant with multiple cards resulting in microstuttering.

Also the GTX670's are notably slower, they aren't too bad in terms of price/performance either. Currently you can get a reference design card for ~$340, which is a bit cheaper than the 7970.
 
I have a 7970 and run on 3 screens, I am currently changing out to nvidia. Tried crossfire and the microstuttering would drive me crazy and the tearing on one screen has already done so. I would go with the 670's

you get microstutter with 670s i found it terrible on far cry 3

money isnt a problem guys, ive alway had nvidia cards time for a change. strugglig with the 670 on three screens with the likes of max payne and looking at crysis 3 may nees the extra horsepower
 
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For someone who doesn't recommend SLI/xfire, I been using it for a month on and off, just cos the gear was laying around. Don't/haven't experienced any stuttering.

I do often think of how builders/users have their rigs setup, as far as Windows/apps are concerned. Many of them use their computer for everything, and can have everything running in the background (all the little checking for updates/devices parts) whilst gaming. I do have the advantage of using the gaming computer just for gaming and absolutely nothing else.

Personally, if I'm buying a new bunch of kit, for a fair sized build, i.e. 3x screens etc, I'd insist on nVidia because at the end of the day I want every game played on it to have, full detail and physx whenever required (without relying on the cpu for it).

If it's a one off card for not a big build, I'd recommend the card, AMD/nVidia depending on the person's budget per fps. But, if there's a big spend, or big build involved, I'd want all graphic options available and all the qualities.

I've never personally understood the purchase of a.... 7990, for example. Why spend all that cash and have a rig that doesn't do everything ? Pure fps yes, but not everything.

Not had microstutter tho. Ever. On anything.
 
see the amount of games i have that make use of physx is one, Mafia 2, i hear what your saying rasta and i love physx, if it was more widely used than that aweful havok then id be going nvidia all the way, seeing as i mostly play racers like F1 maxed on three screens i think the horsepower of a 7970 may be the best choice!
 
see the amount of games i have that make use of physx is one, Mafia 2, i hear what your saying rasta and i love physx, if it was more widely used than that aweful havok then id be going nvidia all the way, seeing as i mostly play racers like F1 maxed on three screens i think the horsepower of a 7970 may be the best choice!

I would agree with you. Having a 670 in my rig as well I see how much VRAM gets consumed under full 1080 gaming and the fact that I also have a 2GB version of the card, the 7970 is a far better decision for multi monitor gaming... unless one had the 4 GB 670... but that's besides the point.
 
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