I am thinking of getting a motherboard that has a Geforce 9400 igp http://www.newegg.com/Product/Product.aspx?Item=N82E16813128363 and I was wondering, can I sli my XFX 9800gt with the Geforce 9400 igp? If I can, then how much FPS boost would I get? I know that scince I would sli with an IGP, I would get a small performance increase but its better than nothing.