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SLI vs. XFire... the showdown.... - Page 2

post #11 of 35
Quote:
Originally Posted by Maytridy View Post
Depends on which cards you're going for, really. The 4870's are the best bang for your buck right now (as stated above). However, that may change when the 4870x2 is released at the end of this month.

The intel chipsets are nice, just be careful because some (like the P45) can only run in x16 x8 mode with crossfire, which will decrease your performance by 5-15%. The X38/X48 chipsets are great for crossfire (they run x16 x16), but are a slightly more pricey.
PCI-e
P35 is usually 16x|4x.

PCI-e 2.0
P45 is 8x|8x.
X38 and X48 are both 16x|16x. A very few select boards do 16x|8x|8x.
Edited by Mootsfox - 7/5/08 at 8:53pm
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post #12 of 35
Crossfire is the better technology, and the bridges look cooler. Need i say more ?
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post #13 of 35
Quote:
Originally Posted by Maytridy View Post
Depends on which cards you're going for, really. The 4870's are the best bang for your buck right now (as stated above). However, that may change when the 4870x2 is released at the end of this month.

The intel chipsets are nice, just be careful because some (like the P45) can only run in x16 x8 mode with crossfire, which will decrease your performance by 5-15%. The X38/X48 chipsets are great for crossfire (they run x16 x16), but are a slightly more pricey.
P45 is PCI-E2.0 x8/x8. P35 is PCI-E1.2 x16/x4 or x1
Quote:
Originally Posted by 10acjed View Post
Are we talking price or performance

ATI is cheaper
nVidia is better
If NVidia was better than the GTX 280 wouldn't be out performed by a card that is less than half it's MSRP(HD4870).

CFX can scale up to 95%, you will never see nVidia cards scale past 80%.
post #14 of 35
Thread Starter 
Thanks for all the suggestions. I had thought that SLI was better, but from reading these threads, it seems like Xfire is the way to go. Price is much better too.

BTW, Cross = X as in railroad X. Usually when you have SLI in the same sentence it would imply running several cards.


What is the difference on a board that will run 16x/8x compared to an x38/x48? Would it justify the cost of a new motherboard? How about DDR3? Worth it?

Thanks for the help.
post #15 of 35
Quote:
Originally Posted by yourmoms View Post
Thanks for all the suggestions. I had thought that SLI was better, but from reading these threads, it seems like Xfire is the way to go. Price is much better too.

BTW, Cross = X as in railroad X. Usually when you have SLI in the same sentence it would imply running several cards.


What is the difference on a board that will run 16x/8x compared to an x38/x48? Would it justify the cost of a new motherboard? How about DDR3? Worth it?

Thanks for the help.
PCI-e 2.0 is suggested for any card HD3850 and up. I wouldn't try to run crossfire without a X38. The X48 adds official 400FSB support, but is not worth it unless you are paying only $5-15 more.

DDR3 is not needed, and the price/performance is much worse than DDR2.
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post #16 of 35
It was my understanding that at its most basic, Crossfire scaled better than SLI?

Or am I wrong.
    
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post #17 of 35
Quote:
Originally Posted by Clinic View Post
It was my understanding that at its most basic, Crossfire scaled better than SLI?

Or am I wrong.
CrossFire > SLi

And please don't call it 'Xfire" that gets confused with xfire IM.
You "CF" or just full "CrossFire".
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post #18 of 35
totally wrong i was! long weekend
Edited by microman - 7/5/08 at 11:19pm
    
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post #19 of 35
CFX or CrossfireX for tri cards

Or QUAD CARDS
Edited by Mootsfox - 7/5/08 at 11:21pm
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post #20 of 35
Quote:
Originally Posted by Mootsfox View Post
CFX or CrossfireX for tri cards
Or QUAD CARDS
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