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What's your budget, what PSU model do you have and what resolutions are the monitors running at?
As ThePengu1n said, running Eyefinity will require quite a beefy card so something like a 2gb 6950 will help provide reasonable framerates at reasonable quality.
£100, i wouldn't bother
unless you can get 2 5850's second hand and crossfire them. That'll be fine![]()
that looks do able lol , are there any other cards i can look at getting 2nd hand that will do that job???
on the 5850 does it matter what brand it is?
Nvidia does their own (surround). It requires 2 cards minimum though - which isn't an issue if you are planning to get 2 cards anyway.
If you don't mind running games at medium graphic settings, a 5870 or 5850 might work. People used single 5870's in eyefinity when the technology was first introduced, though i haven't tried it.
Try a single 5850 for now seeing as you don't mind playing on low detail. Then when you get a bit more cash go for a more beefier card, assuming 79**s will fall in price a bit when Keplar's out, or even a Keplar card if it can support three screens on one card.
The 5850 will still be fine displaying three monitors on desktop, and is very handy for massive multitasking.
XFX has more stream processors so go with that one. However, I would imagine the 896mb VRAM would limit the framerates by quite a bit.
What motherboard and power supply do you have?
EDIT: How about a second hand 460 1gb? Could stick with one and then add another when you get more cash? Is there no way of extending the £100 budget?