When you use eyefinity, you essentially run all three monitors on one big resolution. so the scaling would be a little weird if each individual monitor is different resolutions. They should all be the same and then when using eyefinity, you will create one big display and that's how you can run a game across all your monitors. Depending on your final resolution and the graphics settings aswell as the game you're playing, you will get varied results because you only have 1GB of ram and a fairly medium to low range card. As long as your resolution is outrageous and your settings are ultra. I think you'll be able to play most games at 30FPS at least by adjusting some of your graphics settings accordingly.