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Possible bottleneck?

Last response: in Graphics & Displays
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November 11, 2010 1:27:19 PM

Running Phenom X4 955 BE @ 3.8 Ghz

Going to add a 6850, should be ok but with CF 2x 6850 @ 16/4 in the near future, any chance of causing a bottleneck?

More about : bottleneck

a b U Graphics card
November 11, 2010 1:46:41 PM

There will always be some programs that will be CPU bound no matter how good your CPU is so there's always a chance of that being a bottleneck, but you've got a top tier CPU and the 6850 is a mid range card so don't worry about it. 6850 is a good value but I would go with something more powerful to match that CPU.

November 11, 2010 2:02:24 PM

benski said:
There will always be some programs that will be CPU bound no matter how good your CPU is so there's always a chance of that being a bottleneck, but you've got a top tier CPU and the 6850 is a mid range card so don't worry about it. 6850 is a good value but I would go with something more powerful to match that CPU.


Well im on a bit of a budget at the moment after building the machine, so £150 is about tops, would 2x 6850 @ 16/4 not match the Cpu well?

Its either buy a 6850 now and game on, then in a few months another for CF, or wait for those few months and get 1x 6870 and no game on till then :( 
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a b U Graphics card
November 11, 2010 2:28:57 PM

Well if that's your budget then go for it, 6850's reportedly scale well and 16/4 is not a big issue. 2x 6850s is a good match and there's nothing wrong with 1 of them for now if that's all you can afford. Just wanted to point out that your CPU could handle a much more powerful card without being the "bottleneck" in most gaming situations.
January 2, 2011 7:31:26 PM

Nate,

FYI: if you CF a 6850 + 6870, it'll basically run as 2x 6850. So, always purchase two GPU's of the same kind. :) 

-Sung
January 2, 2011 9:07:09 PM

sung715 said:
Nate,

FYI: if you CF a 6850 + 6870, it'll basically run as 2x 6850. So, always purchase two GPU's of the same kind. :) 

-Sung


That's not true, please don't post before doing research.
The 6870 will do more graphical work than the 6850 would if you crossfired both of them. They will both be used to the fullest extent.


@ OP

You can't run them at 16/4. They will both run at 4/4, but that doesn't matter unless your resolution is higher than 1920x1200.
If you overclock the HD 6850 a decent amount, you shouldn't have too much of a bottleneck if your resolution is 1920x1200 or lower.
January 11, 2011 8:15:36 PM

jaguarmatt said:
That's not true, please don't post before doing research.
The 6870 will do more graphical work than the 6850 would if you crossfired both of them. They will both be used to the fullest extent.


@ OP

You can't run them at 16/4. They will both run at 4/4, but that doesn't matter unless your resolution is higher than 1920x1200.
If you overclock the HD 6850 a decent amount, you shouldn't have too much of a bottleneck if your resolution is 1920x1200 or lower.



uhh im going off many tomshardware posts, unless they are ALL wrong.

http://www.tomshardware.com/forum/305171-33-crossfiring...

http://www.tomshardware.com/forum/301013-33-cross-fire-... (shows that its better to get two same cards, than two in same family)

http://www.tomshardware.com/forum/274102-33-crossfirex-...

http://www.tomshardware.com/forum/288460-33-crossfire-c... (a higher clock will DOWNCLOCK to match the lower one.)

http://www.tomshardware.com/forum/259143-33-4870-crossf... (It shows that EVEN if the other one had more memory, it still wouldnt do more work to cover the weaker one.)



I mean in all honesty, who's the one that DIDN'T do research.

Almost every single link here is quoting people i always see helping out on tomshardware. They are daily posters, some even moderators.
Tell me they are ALL wrong.

I've done a fair amount of research tbh and don't deserve your crap. There's billions (!!!!!!!!!) of results on google alone that back up my post. I'm sorry dude you shouldn't put down someone's WELL RESEARCHED post and then act as if your wrong info is right. I'm here trying to help the OP get the best for his system, and you might ruin it for him.
!