Would my rig bottleneck HD 4770 in crossfire?

nammerduong

Distinguished
Nov 14, 2009
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my specs are:

CPU: intel core 2 quad Q6600 @2.40 GHz
http://www.newegg.ca/Product/Product.aspx?Item=N82E16819115017&cm_re=q6600-_-19-115-017-_-Product

PSU: corsair TX750W
http://www.newegg.ca/Product/Product.aspx?Item=N82E16817139006&Tpk=tx750w

RAM: 6 GB
http://www.newegg.ca/Product/Product.aspx?Item=N82E16820145034&cm_re=xms2-_-20-145-034-_-Product
http://www.newegg.ca/Product/Product.aspx?Item=N82E16820227267

Motherboard: ECS BLACK SERIES P45T-A
http://www.newegg.ca/Product/Product.aspx?Item=N82E16813135093

OS: windows 7 64-bit

I heard from a person that if your video card's perfomance is really high: your CPU might not keep up with it's performance; thus creating a bottleneck. So would 2xHD 4770 in crossfire create a bottleneck with my rig?

Also, i was wondering if I should be concerned about "crossfire certified". My RAM and my motherboard both aren't "crossfire certified", and I'm not sure if my CPU is either.
 
Solution
RAM and CPUs don't need "crossfire certification" and the reason that motherboard has 2 PCI-E x16 slots is to allow for crossfire.
Both the CPU and 2 HD4770s are good and which one will be the limiting factor on frame rates depends on what game is being played at what settings and on the resolution you are using. That processor OCs very nicely if you want to help make sure it isn't a limiting factor and for better performance in general.
RAM and CPUs don't need "crossfire certification" and the reason that motherboard has 2 PCI-E x16 slots is to allow for crossfire.
Both the CPU and 2 HD4770s are good and which one will be the limiting factor on frame rates depends on what game is being played at what settings and on the resolution you are using. That processor OCs very nicely if you want to help make sure it isn't a limiting factor and for better performance in general.
 
Solution

belial2k

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Feb 16, 2009
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As other have pointed out your MB and memory do support crossfire....unfortunately it seems your MB does not OC very well, but anything will help, and from what I have seen you should be able to get to at least 2.6 to 2.8.
 

pauldh

Illustrious
+1 on OC to 3.0GHz and "it depends on game/res/settings". I've gamed on a 3.0-3.2GHz Q6600 + SLI 8800GT's for the past 2 years. Stock 2.4GHz will often hold the pair of 4770's back from their maximum potential, again depending on the resolution/eye candy.