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Confusion... I don't know anything about ATI cards. Is the 5850 faster than the 5970?

post #1 of 16
Thread Starter 
in crossfire?

I'm really confused by these two scores, can anyone explain why the 5850 CF setup is faster than the 5970 setup?

5850 CF:



5970 CF:




Not only is the 5970 setup slower, but it's 13 FPS slower... Why?
    
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post #2 of 16
a 5970 is pretty much 2 5850 GPUs on one chip. They should have very similar performance. Your first benchmark shows a 68xx series chip being tested not a 58xx. That would explain your difference. 6xxx series cards scale better in CF than any 5xxx cards
Edited by killeraxemannic - 4/5/11 at 9:44am
post #3 of 16
5970 is just 2 5850 chips but scaledd down, that's why 5970 is not as fast as the 5850's!
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post #4 of 16
its not a 5850, it says its a 6800 series card. but what the people above said if it were 5850s compared to 5970
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post #5 of 16
This.
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post #6 of 16
Quote:
Originally Posted by killeraxemannic View Post
a 5970 is pretty much 2 5850 GPUs on one chip. They should have very similar performance. Your first benchmark shows a 68xx series chip being tested not a 58xx
Balla needs to upgrade his eyes. My eyes my eyes!

Btw, it's 2 5870s underclocked to 5850 right?
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post #7 of 16
Its the 6800CFX vs 5970+5800CFX.

The 6xxx series is better optimized for tesselation(DX11) etc,.
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post #8 of 16
Thread Starter 
So there are 3 cards in each rig?

Wow thats confusing.


No thats not right is it?


So the i7 build is slower with a 5970 and a 5870 which is 3 gpus than the AMD rig which has two 6850s which is two gpus right?
Edited by BallaTheFeared - 4/5/11 at 9:50am
    
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post #9 of 16
yeah 6870 cf vs 5970 theres no wonder why it won.
post #10 of 16
Quote:
Originally Posted by tsm106 View Post
Balla needs to upgrade his eyes. My eyes my eyes!

Btw, it's 2 5870s underclocked to 5850 right?
^^ This

Not to mention, the 5970's in QuadFire, if memory serves, scaled like poo compared to the 6xxx cards. On top of that, the 5xxx series cards had a very hard time with tesselation.
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