So I got a XFX 5770 that I've had for about 3 years now, lately the card has increased operating heat to about 85-90c while just playing Dota2 and it's Idling around 50-60c. I'm looking to upgrade the card or buy another 5770 but I've been out of the GPU scene for a little while. My motherboard only supports PCI 2.0 and I have a OCZ 500w PSU. Oh and I'd like to stay under 150$.
I remember my HD5770, was epic for the price! I'd say you should go for a GTX650 if you can, I find the HD7770 to be one of the most dissapointing cards from this generation, it's only a small upgrade from the 5770 despite being 2 years newer and not much cheaper.
I got a 7770 and I love it. The temps at full in the games I play barely peak 52ish. I got the Asus 7770 2gig for only 160$ from Fry's. I like AMD and on a budget I'll take it. Most of the time the performance differences are only single maybe double digit % anyways.