I was looking at that but, I would need to get a crossfire enabled motherboard as mine doesn't support it at present. Unfortunately, currently living in China it is really hard to fine them. I miss typed, my motherboard is a ASUS P5Q Turbo. Not Pro..
No problem, yes that does change things... I assume you are using this system for gaming, what resolution? I would say it's probably not worth starting fresh with a sandy bridge build unless you're experiencing problems/slow performance from your current build as it's still pretty powerful.
Gaming mostly, I am running a res of 1920X1080 on a 22" Samsung moniter. The real reason I want this upgrade is due to The Witcher 2. I have to be able to play it at full without any problems, greed? Perhaps but, I also want to get a card I won't need to replace for a while.
The GTX 590 is another option but I am not much of a green team fan.
Yes, it seems that game does have some pretty high hardware needs even though the minimum specs wouldn't give it away. Still, the 6990 would absolutely destroy anything at 1080p.
Unfortunately, you are very very wrong.
I have two unlocked 6950's in Crossfire with an i7 920 @ 3.4ghz and ultra settings on The Witcher 2 kick the hell out of my computer. Although I'm at 1920x1200, which is a little bigger than 1080p, I get 15 FPS after leaving the tent at the beginning of the game. At high settings, I get between 20-60 FPS, which is reasonable.
Metro 2033, is also demanding, but not nearly as demanding as The Witcher 2.
Let me clarify: destroy anything = outpace all other hardware. Also, it doesn't look there are too many alternatives (its a $700+ card and he can't crossfire). Thanks for the correction, though.
I see, I didn't take it that way obviously
It is possible that some performance may be gained with driver or game patches. The game doesn't look that flashy to have that low of FPS. I have a good feeling that the game would have ran a lot smoother for the visuals if they had just use DX11 instead of DX9.