I'm gonna have some money in my hands soon, and I'm thinking about getting a new graphics card. I currently have a GTX 275, and performance in Bad Company 2 is pretty bad. I run that game at medium/low settings, with DirectX dropped to version 9 to get the smoothness I need when playing an FPS.
 
I've been looking at both the HD 5850 and the HD 5870, and I can't decide if it's worth the extra money for the 5870. I know that the 5850 not a whole lot faster than my gtx 275, but it supports DirectX 11 and all that jazz, which makes games like BC2 run much smoother. The Nvidia Fermi cards seem to cost a lot more and have high power usage and heating issues. I have the core i7 920 CPU and 6gb RAM, so I just want a good graphics card that will support future games like Deus Ex 3 at high or maxed graphics.
 
Thanks in advance for any advice! :)

I say to go with a Nvidia card. U mentioned heat issues and power usage, but right now the best card for price vs. performance is the GTX 460. You can buy one for two hundred and if you double up it is 26% faster than a GTX 480 which is faster than a 5770. 
 
Edit: Link to proof of what I'm saying.

" @hakooon: Screen Resolution? Also if you getting the performance you want at the minute buy your new card when Deus Ex 3 comes out, I'll guess ATi will be well into their 6000 cards by then. "

@MonetaryDread

" I say to go with a Nvidia card. U mentioned heat issues and power usage, but right now the best card for price vs. performance is the GTX 460. You can buy one for two hundred and if you double up it is 26% faster than a GTX 480 which is faster than a 5770. 
 
Edit: Link to proof of what I'm saying.

Link To Proof

"

750W should be enough for 2x GTX460. I recently replaced my 8800GTX with a 1GB GTX460 (rather than the 768MB version) and it's been great so far. The low power draw and low temps compared to the other fermi cards is very appealing.

" 750W should be enough for 2x GTX460. I recently replaced my 8800GTX with a 1GB GTX460 (rather than the 768MB version) and it's been great so far. The low power draw and low temps compared to the other fermi cards is very appealing. "

Two gtx460 1gb = $250X 2 = $500 = more powerful than a gtx 480 = a bit overpowered.  
 
then again one gtx480 1g = gtx275, gtx280 in power, so not alot of difference from what you got, only now your using it in sli  

A hd5870 = slightly less powerful than gtx480 = $430 
 
I would go with nvidia, however it's just something to think about.

get 3 nvidia 480s. Tri-SLI.

"

Two gtx460 1gb = $250X 2 = $500 = more powerful than a gtx 480 = a bit overpowered.  
 
then again one gtx480 1g = gtx275, gtx280 in power, so not alot of difference from what you got, only now your using it in sli  

A hd5870 = slightly less powerful than gtx480 = $430 
 
I would go with nvidia, however it's just something to think about.

"

" get 3 nvidia 480s. Tri-SLI. "

" @hakooon:  
 
Take a look at benchmarks of Sapphire Toxic 5850 2GB -- it has a custom cooler, is pre-overclocked and comes with 2gb of memory.
 
http://www.pureoverclock.com/review.php?id=940&page=15 "

"
Looks like a good card, but here in Norway that card costs the same as an HD 5870, which is faster. "

I don't recommend a hd5850, for what it cost in the states, it's too much for a card incapable of physX. Still 2 gtx460 1gb will give you alot of power. Somewhere inbetween a gtx480 and hd5970.

" @hakooon said:

"
Looks like a good card, but here in Norway that card costs the same as an HD 5870, which is faster. "

You mean it costs as much as a 2GB 5870?  Weird.  BTW, from what I read it runs a bit cooler under load and is a bit quieter than the stock card...but that may not be worth the extra cash. "