I got around to installing the card today. The specs for my rig are:
AMD 550 XII Black running @ 3100 mhz.
AMX RX780 Chipset motherboard (budget board here folks!) M4A78+
8GB DDRII 800 Corsair XMS
XFX Radeon 5870 running catalyst 9.12
2x 2408
1x 2410
2 DVI cables and 1 displayport cable from Monoprice
Configuring 3 monitors
I highly suggest anyone walking through this to read through the ATI briefing on eyefinity as it is basically a walkthrough on how to setup the displays using the Catalyst Control Center. Being a Nvidia user since the Radeon 9700 I am not familiar with the ATI Graphic Suite. The briefing document will help quite a bit if you take a minute to read it prior to fooling with the software.
http://www.amd.com/us/Documents/ATI_Eyefinity_Technology_Brief.pdf
For some reason my group does not stay in it's arranged position permanently, I've had to change the setting a few times already as for some reason it changes on it's own which is rather frustrating (user error somehow?). No clue but hey that's not why you are reading this post.
Running games @ 5760x1200, using FRAPS to record FPS:
Left4dead 2- everything on high, first level played through (the smoky escape map) Min FPS 33, Max FPS 64, Avg 57.21.
Crysis- settings on high, really took a hit here, avg is 21FPS and only played the first 5-10 minutes. I can only imagine the later part of the game is brutal at this resolution.
Stalker Call of Pripyat Benchmark, high settings. Fraps not used on this one. Avg FPS on Day, Night , Rain and Sun Shafts: 40, 35, 36, 4.2 (not sure about this last one, min is 23 and max is 31).
Note: I have had one lockup with the card so far.
Initial impression: not enough time spent yet with gaming, pleased with the framerates so far, main concerns are motion sickness (I'm normally not with videogames, but when you have an immersive environment like this it changes the whole meaning, took a dramamine to continue gaming....). I think what's amazing here is like Guru3d mentions is that you can game on a budget setup, my rig is the definition of that minus the videocard of course...
I will update the thread when I spend some more time trying out the card on some different levels in l4d2, MW2, and Crysis.
Impressions after 2 or more hours gaming:
I'm finding some games like l4d2 to make me more prone to motion sickness, haven't played it that much to be honest so maybe it will be better after I spend more time with it. I got hooked playing Mechwarrior Living Legends the mod for Crysis. I'm finding it easier to focus on the center screen, after a while I don't notice the monitor bezels.
I've gamed with HDTV's and I have to say this experience far surpasses using an HDTV due to the immersive feeling from using 3 24" monitors. If you are looking for a surreal gaming experience this is it. If it means I have to take a motion sickness pill to enjoy certain games then I'm all for it as I can't see going back to 1920x1200 after running this beauty.
I still have yet to play MW2, I'm holding out for a patch from IW as I really don't want to risk my steam account. Now I just need more time to play games!
To anyone that is considering running eyefinity I would say to go for it. I'd do it again. The only change I would make would be to swap my 2408's for 2410's to have a matching set of three but I'm really picky so take that for what it's worth (just my .02).