Tom's Hardware > Forum > Graphic & Displays > Graphics Cards > [Solved] Would my rig bottleneck HD 4770 in crossfire?

[Solved] Would my rig bottleneck HD 4770 in crossfire?

Forum Graphic & Displays : Graphics Cards - [Solved] Would my rig bottleneck HD 4770 in crossfire?

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Best answer from jyjjy.

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nammerduong   11-15-2009 at 03:59:56 AM

my specs are:

CPU: intel core 2 quad Q6600 @2.40 GHz
http://www.newegg.ca/Product/Produ [...] -_-Product

PSU: corsair TX750W
http://www.newegg.ca/Product/Produ [...] Tpk=tx750w

RAM: 6 GB
http://www.newegg.ca/Product/Produ [...] -_-Product
http://www.newegg.ca/Product/Produ [...] 6820227267

Motherboard: ECS BLACK SERIES P45T-A
http://www.newegg.ca/Product/Produ [...] 6813135093

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.

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Best answer from jyjjy
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.
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Bronze Graphics badge jyjjy   11-15-2009 at 04:20:51 AM
Best answer

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.

Reply to jyjjy
MARSOC_Operator   11-15-2009 at 04:27:04 AM

OC your CPU to at least 3.0 and you'll be fine.

Reply to MARSOC_Operator
belial2k   11-15-2009 at 04:32:41 AM

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.

Reply to belial2k
pauldh   11-15-2009 at 04:36:11 AM

+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.

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