Found this post as exact question but the thread is 20 months old. My system is very similar w. PSU 550W. There are so many cards above HD5770 Crossfire I don't know what to pick for my 200 bucks. I DO NOT USE Crossfire and don't plan to. You folks have always been the best help and I appreciate it always. Thanks
For 200 dollars, you can find a 7950 on sale lately. If you don't want to wait for a sale, then the 7870ghz edition is going to be your best bet.
Thanks for the heads up and I'll hunt the 7950 for a best price around 200. tho maybe a little time will let me go to 250.
My biggest concern is it fits the punchouts in the back of the case. You can tell I'm no hardware guy.