I'm looking at getting a 5770. However, I particularly like XFX's products. I'm looking at 2 of their 5770's and have one question, What's the difference? Besides the cheaper one being PCIe 2, and the pricier one being PCIe 2.1, there seems to be no performance differences. But I do like the 2.1, because it's smaller, and it will allow for more airflow in my Lian-Li PC-Q08 case. Would it be worth the extra $20 more for the smaller one, since it would give me the performance and airflow in my case, or should I get the cheaper one?
So it would be wiser to get the dual slot? Also I was thinking that it might be a good idea cause there is a vent a the bottom of the case which looks like a dual slot card with a fan could pull air from outside.