Cost

Two 8800 Ultras from any manufacturer is going to set you back at least £800 which is an insane amount of money for the small performance gains over a single one at these resolutions.

Noise and Cooling

Both cards were not particularly loud at any point during testing which was nice to see. However, this was reflected in the temperatures as both cards were extremely hot to the touch, even with extra fans blowing on them while attempting to overclock.

Conclusion

It seems that without an extremely overclocked CPU and running at a very high resolution is the only way to get your money's worth from these cards which is going to cost a lot. Still, if you can afford two of these cards you should be able to afford a top of the line monitor too. For anyone currently with a single Ultra, if you are playing at anything below 2560*1600, I would be very surprised if there was anything out there at the moment that wouldn't be able to be played at full tilt with a single Ultra let alone two. Unless you want the most raw graphical power possible and plan on gaming on a monitor with a monstrous resolution, steer well clear of Ultra SLI.

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Thanks go to Gainward and PNY for providing us with these cards.