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Would Crossfire (2X5850) help with current games

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a b U Graphics card
April 19, 2010 1:51:40 PM

I currently have the following system:

CPU: Intel Core I7 920 (D0@2.66GHz)
M/B: Asus Rampage II Extreme
Ram: 12 GB Mushkin 1600 MHz (9-9-9-24)
GPU: Sapphire ATI Radeon HD 5850 1GB
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Hdd: 2X300GB WD Raptor (Raid 0)
Case: Cooler Master 690 II Advanced
PSU: Corsair TX950W
CPU Cooling: Noctua NH-U12P SE2
Case Cooling: 4 X 140mm, 2 X 120mm
Monitor: Samsung (1680x1050)
OS: Windows 7 Pro 64 Bit

I currently play games like Battlefield Bad Company 2, Need for Speed: Shift, Modern Warfare 2, etc. and am wondering if I would see a drastic increase in framerate if I was to install a second Radeon HD 5850. As my resolution is limited to 1680x1050 I'm not sure if I may be maxing out as it is. In NFS:Shift I am getting a constant 60 frames/second and BC2 I have a min of 40 fps.

Thanks.
a c 169 U Graphics card
April 19, 2010 2:03:15 PM

For that resolution a single HD 5850 is enough,and your FPS are good in games.
If you want to CrossFire,then IMO get a bigger monitor with more resolution(like 1920x1080)first

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a c 140 U Graphics card
April 19, 2010 2:04:57 PM
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You are aiming for 60FPS, unless you have a higher refresh rate on your monitor. That is a very capable system and really at 1680x1050 a 2nd 5850 would be a waste.

Your system eats Modern Warfare 2 alive. Its based on the COD4 DX9 engine which is what? 3 years old. You have no issues.

Not sure about Need for Speed: Shift, but if you get 60FPS that is what you aim for. If you have Vsync on it aims to clock in 60FPS even if it can do more.

Bad Company 2 is just as hard on your CPU as it is your GPU. If you overclock both you will get better frames. Look at the graphs on the below link and see the difference in frames between the i7 920 and 975. If you OC your CPU you will get better frames as it is handling the Physics of the game. Also, the 5850 overclocks pretty well. If you bump up the clocks on your GPU it will add even better performance.
http://www.xbitlabs.com/articles/video/display/battlefi...
Put this in perspective. I have an i7 920 @ 4GHZ and a stock clocked 5870 (well did it is out for an RMA as it artifacts a bit at high temps). This system runs at 1680x1050 and I get 60 FPS all the time, as I have Vsync on. I think i took vsync off before and it actually gets like 70fps. The 5850 can be clocked at 5870 speeds and it performs slightly under it. I would try that out. The i7 920 is also an OC monster. Even an OC in the 3-3.6GHz range should not take much effort at all. If you have a stock cooler you should be able to get lo 3GHz without any issues.
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a b U Graphics card
April 19, 2010 2:20:54 PM

jay2tall said:
You are aiming for 60FPS, unless you have a higher refresh rate on your monitor. That is a very capable system and really at 1680x1050 a 2nd 5850 would be a waste.

Your system eats Modern Warfare 2 alive. Its based on the COD4 DX9 engine which is what? 3 years old. You have no issues.

Not sure about Need for Speed: Shift, but if you get 60FPS that is what you aim for. If you have Vsync on it aims to clock in 60FPS even if it can do more.

Bad Company 2 is just as hard on your CPU as it is your GPU. If you overclock both you will get better frames. Look at the graphs on the below link and see the difference in frames between the i7 920 and 975. If you OC your CPU you will get better frames as it is handling the Physics of the game. Also, the 5850 overclocks pretty well. If you bump up the clocks on your GPU it will add even better performance.
http://www.xbitlabs.com/articles/video/display/battlefi...
Put this in perspective. I have an i7 920 @ 4GHZ and a stock clocked 5870 (well did it is out for an RMA as it artifacts a bit at high temps). This system runs at 1680x1050 and I get 60 FPS all the time, as I have Vsync on. I think i took vsync off before and it actually gets like 70fps. The 5850 can be clocked at 5870 speeds and it performs slightly under it. I would try that out. The i7 920 is also an OC monster. Even an OC in the 3-3.6GHz range should not take much effort at all. If you have a stock cooler you should be able to get lo 3GHz without any issues.


Thanks, your link does show that the CPU is an important part of BF:BC2 reaching top speeds. I have a Noctua NH-U12P SE2 which I find to be an excelent cooler for this CPU and should let me OC to atleast 3.6GHz and still be stable. Thanks for the advice.
a b U Graphics card
April 19, 2010 2:22:39 PM

Best answer selected by deweycd.
a c 140 U Graphics card
April 19, 2010 2:26:56 PM

deweycd said:
Thanks, your link does show that the CPU is an important part of BF:BC2 reaching top speeds. I have a Noctua NH-U12P SE2 which I find to be an excelent cooler for this CPU and should let me OC to atleast 3.6GHz and still be stable. Thanks for the advice.

Oh yeahs should be no problem. OCin the 5850 is as easy as sliding the bar in the ATI CCC Overdrive window.
!