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Old 09-07-2009, 08:04 PM   #11
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Default Re: Crossfire witht his card

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Originally Posted by _-..zKiLLA..-_ View Post
Crossfire and SLI have to be with 2 of the exact same cards
Yes and no.

IIRC: SLI requires the same card for compatibility, Crossfire is compatible with any same-generation cards.

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Originally Posted by sniperviper21 View Post
you cant crossfire a 4870(x2) with a 4850(x2).

Yes you can. You can't, for example, SLI a GTX 260 and GTX 275, or Crossfire a 3300 and 4850 (different generation cards).


HOWEVER: If you crossfire a card with a lower card (i.e. 4890 with a 4850) it drags down the performance to the clock speeds of the lower card, so a 4890 + 4850 in crossfire would be equal to having 2x 4850s in crossfire.
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Old 09-07-2009, 08:07 PM   #12
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Default Re: Crossfire witht his card

MARIOPARTY53 -
Can you please supply us with the specs of the rest of your system? Throwing another video card in there may not be the best solution.
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Old 09-07-2009, 08:09 PM   #13
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Default Re: Crossfire witht his card

"When in doubt, add more videocard" isn't a great idea.

List the rest of your specs, there are other places you can improve; or I'd even recommend overclocking before throwing a pile of GPUs into your case.
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Old 09-07-2009, 08:11 PM   #14
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Unhappy Re: Crossfire witht his card

Quote:
Originally Posted by Computear View Post
Yes and no.

IIRC: SLI requires the same card for compatibility, Crossfire is compatible with any same-generation cards.




Yes you can. You can't, for example, SLI a GTX 260 and GTX 275, or Crossfire a 3300 and 4850 (different generation cards).


HOWEVER: If you crossfire a card with a lower card (i.e. 4890 with a 4850) it drags down the performance to the clock speeds of the lower card, so a 4890 + 4850 in crossfire would be equal to having 2x 4850s in crossfire.
sry, i shouldnt have put that, i was typing for the red team and thinking of the green team


its been a bad day, my apologies.
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Old 09-07-2009, 08:12 PM   #15
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Default Re: Crossfire witht his card

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sry, i shouldnt have put that, i was typing for the red team and thinking of the green team


its been a bad day, my apologies.
Np; just making sure he gets the right info

In either case (SLI or Crossfire) its not a good idea to combine 2 different cards anyway. 1 won't work, and 1 you're just gimping 1 of your cards.
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Old 09-07-2009, 08:21 PM   #16
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Default Re: Crossfire witht his card

the best advise i could say is,

Either spend the money ud spend on 2 cards, and get 1 really powerfull kick ass card, 4890 atomic/Toxic from ATI or a GTX 295 from Nvidia

could be your CPU being the bottleneck as well.
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Old 09-07-2009, 08:24 PM   #17
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Default Re: Crossfire witht his card

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Originally Posted by sniperviper21 View Post
the best advise i could say is,

Either spend the money ud spend on 2 cards, and get 1 really powerfull kick ass card, 4890 atomic/Toxic from ATI or a GTX 295 from Nvidia

could be your CPU being the bottleneck as well.
Pretty sure Crysis has good driver support for dual GPU setups; in which case the 4850X2 would outperform either of those cards.

Need to know the rest of the specs to make further recommendations, but if he wants to push his computer a bit harder he could just OC his CPU, GPU, & RAM.
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Old 09-07-2009, 10:46 PM   #18
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Default Re: Crossfire witht his card

OK rest of specs are
Cpu quad core 3.4 (with oc)
4gb of ram
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Old 09-07-2009, 11:02 PM   #19
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Default Re: Crossfire witht his card

which quad core?
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Old 09-07-2009, 11:05 PM   #20
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Default Re: Crossfire witht his card

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Then what exactly is the point of this -.-
http://ati.amd.com/technology/crossfire/charts.html
Woah i learn somethin new everyday
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