I have to say.... These new gfx cards are really a step-up!!! Bith AMD's and Nvidia's new architecture are completely badass!! I'm not a fanboy, so I will take whatever offers the best framerates per dollar, and right now that looks like an HD7870. But Nvidia has only released it's 680, so I'm going to wait for at least another month to see what the rest of their lineup looks like.
On the topic of being a fanboy.... I tried it a while back.
I built my first serious gaming rig a few years ago, it was a AMD Phenom II 955 BE @ 4Ghz with a Sapphire HD6870. I was completely impressed by it's performance and I turned into an AMD fanboy for about a year there... I was totally seduced by the value for money they offered. An unlocked 64bit quad core for 150$??? I was in love... Thought for sure AMD had the low-mid cpu range dominated. I knew that intel had the fastest processors around, but they were the 1366 socket $1000 extreme acpu's and I couldn't afford it. i couldn't even afford an I7 920.
Then Sandy-Bridge came out.
And I watched as Intel displaced AMD from the low-end all the way to the High-end. It was a mind shattering experience, to see a dual core locked multipleir i3 2120 stomp all over everything AMD had. And it also put 1156 and 1366 to shame as well. It really opened my eyes. From that point on, I swore to never be a fanboy again. I'd chose whatever componenets had the best performance per dollar.
Now I have an I5-2500k and a MSI GTX 560Ti 2GB running 2 HD displays. I can max out all my games, so I don't really need a GFX upgrade but......
My Friend has an i7 2600k and an HD6970, and my pride can't stand to be second best!
He always wins in the "benchmark wars"......
So I really want to upgrade my GFX card.
I'm debating what to do though....
Get a new Nvidia 600 series or AMD 700 series card
or
Get another 560Ti and SLi them!!!
I'm not sure yet.....
I may not be able to power 2 560Ti with my current psu. It's an OCZ 600W modular, and I don't think it can handle a pair of 560Ti's... So if I wanted to go that route I might have to get a better psu. Which adds to the cost of my upgrade. And if I have to get a better psu, than maybe it's more cost effective to just get a newer single GPU setup than trying to go for 560Ti Sli setup...
It would cost me roughly 100$ for a nice PSU, plus around 150-180 for another 2GB 560ti. I haven't really decided yet. If I was smart, I'd just be happy with what I have. But pride is a biatch.