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HD 5670 CrossfireX Question

Last response: in Graphics & Displays
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October 5, 2011 10:32:43 PM

Hello,


I have a dilemma about my graphics card. I have ATI Radeon HD 5670 Sapphire 512 MB GDDR5 and I tried playing Battlefield 3 but the video settings are automatically set to low/medium. I was thinking about buying another HD 5670 card and using Crossfire X since that is the cheapest way to improve my PC.
Since I don't have any expirience with CrossfireX could you please tell me how did it work for you with these cards and what performance improvements can I expect? Also is my CPU/PSU/motherboard good enough?


My system:

OS: Windows 7 64 bit

Motherboard: Asus P5E

Processor: Core 2 Quad Q6600 2.4GHz

Memory: 6 GB

PSU: Asus model A-55GA (550W)


Thank you in advance for you answers and suggestions.
a c 259 U Graphics card
October 7, 2011 2:49:09 AM

Uninstall the ATI/AMD driver package and let it re-boot. Then shut down and install the 2nd card. Boot up. Install the latest drivers for your cards. Be sure the Crossfire box is checked in the CCC/Performance tab. You will see an improvement in gaming at 1680x1050. But the 512MB memory will still be your weak spot.
Or, you could sell that card on ebay and put the money towards a single HD 6850 1GB and play at max/near max settings.
October 7, 2011 4:08:02 PM

I did some research and I think I'm gonna go for 6850 as you suggested. I hope my PSU will be able to power it. Maybe I should overclock my CPU as well.
Last question, which HD 6850 should I get (was thinking the ASUS one) and what about nVidia gtx 460 or some 5xx?

Thanks for replies.
Related resources
a c 259 U Graphics card
October 8, 2011 12:23:03 AM

I'll second that Powercolor card choice. I have 2 of them in my main machine. However, I put a single HIS HD 6850 in my other machine because it was on sale that week. Both good cards. If you want to save a few bucks, go with the HIS:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Same specs, as the Powercolor.
Be sure you have enough power supply for your card that you choose. Check out the PSU calculator here:
http://www.extreme.outervision.com/psucalculatorlite.js...
October 8, 2011 7:47:19 PM

Seems like my PSU is good enough. I'll have my 6850 on monday. Thanks guys for your time and suggestions!
a c 259 U Graphics card
October 8, 2011 8:12:54 PM

anon7mous said:
Seems like my PSU is good enough. I'll have my 6850 on monday. Thanks guys for your time and suggestions!

One last question, what resolution do you game at?
October 8, 2011 8:19:19 PM

My monitor can't go better than 1680x1050. I'm using Samsung SyncMaster T220.
a c 259 U Graphics card
October 9, 2011 12:52:05 AM

anon7mous said:
My monitor can't go better than 1680x1050. I'm using Samsung SyncMaster T220.

That HD 6850 will be perfect for that resolution. You will be gaming at max settings in any game.
October 9, 2011 2:35:41 AM

I bought the same PowerColor card you guys linked, and I'm impressed with it. I agree with the others, don't bother with CF 5670's, go with the 6850.
a c 259 U Graphics card
October 9, 2011 3:51:30 AM

One other thing. If you have a board that does Xfire @ x16 x4, don't waste your money on a second card. My 2nd machine has one of those boards, and I tried 2 HD 6850s in Xfire. It actually slowed my framerate in some games and only made a slight improvement in others.
I have a x16 x16 Gigabyte board in my main machine and it almost doubles my framerate from a single card in every game I've tried so far.
October 9, 2011 3:13:52 PM

I'll keep that in mind. I'm probably gonna buy an entirely new PC in a year so I'm just hoping to be able to run games smoothly until then. I'll have my new card in a few days, can't wait :) 
!