Hd6870 vs 6950

What case (make/model) and power supply (same) are you using? BTW, your post title and message lists different GPUs. Which are you actually considering and what is your budget?

O.K. I am confused as to which cards you were trying to ask about.I saw on the thread title it said 6870 or 6950.And in the actual thread it says 6850 or 6870.I will give you an answer for both.There are not any 6870 cards that are supporting 3 way Crossfire that are on New Egg that I have seen(that means nothing,there are probably some coming out as I speak).If you are going to use more than 1 card I would go with this card--http://www.newegg.com/Product/Product.aspx?Item=N82E168...;><>It has support for more than 2 cards and is less than $200.It leaves you room for Crossfire(3-way)if you so choose.If you are choosing between the 6870 and the 6950, I would go with this for under $300--http://www.newegg.com/Product/Product.aspx?Item=N82E168...;><>or if you want a monster to push more displays for a great price--for slightly over $300---http://www.newegg.com/Product/Product.aspx?Item=N82E168...;><>But it really boils down to how much you want to spend and what kind of case you have.You definately want something with good cooling.I personally do not buy anything with the cheap fans(reference).They just do not cool enough for me and when they get hot enough,you have to crank up the fans which are just too loud.The XFX 6950 with the dual fans runs cool and quiet(compared to the single fan cards).Good luck on your selection,I hope I helped.

the case is --- cooler master CM 690 II Plus Black ATX Case
the power supply - thermalrake TR2 550 w

Both will fit and your PSU is sufficient. Let your budget be your guide. Good luck!