Hey guys i'm new to the forum, but i'm a long time linus tech tips watcher. I currently have a evga gtx 580 running in my computer. i have just added another monitor so now the card shows some stress. my question is i can find another gtx 580 for 400.00 on newegg. but considering the age of the card would it be better going for a 680 or 670 any of the types. my budget is somewhat around the 400 area. i need help. i do some gaming and want to have the other monitor "monitoring" the backround temps of my computer. at times i see some waves on the screen very slightly but they are there. which is why i know that the card is stressing out a bit. thanks in advance.
