This tells us that scaling on Eyefinity is really going to be on a case-by-case basis and that simply assuming a 3x performance drop is both wrong and foolish. As we said, even with just a single Radeon HD 5870, Batman and HAWX were completely playable at 7680x1600 with 4xAA enabled! That is an impressive feat even though we are talking about frame rates in the 30s rather than the 60s that I know a lot of our readers will want. To that point, AMD is still committed to bringing CrossFire to Eyefinity in the future, just not soon enough for me.
More : http://www.pcper.com/article.php?aid=793&type=expert&pid=1
They say they tested with each screen at 2560x1600, but then when they shown screenshots of the setup options some titles are at 1600x1200, 1680x1050, etc. :?
Assuming all of these tests are done at 7680x1600, then the results overall are pretty promising. Since most of us aren't using triple 30" monitors, lower resolutions should fare better, and hopefully advances in hardware demand will be met with equal or greater advances in hardware.
In other configurations, high-resolution triplescreen gaming has been a true justification for SLI / CrossFire (perhaps the only real justification where the money spent gets you a meaningful performance increase). I imagine that when CrossFire/EyeFinity capability for the 5000-series arrives we will see that this is the case this time around as well.
