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Would Phenom II x2 555 Bottleneck CF'ed 6870's

post #1 of 14
Thread Starter 
About to upgrade the system I built last January, and I'm not trying to buy another CPU. I was wondering if at Phenom II x2 555 @ 3.2GHz would be bottle-necking a CF setup on 2 6870's.

Here are the other specs:

MSI 890FXA-GD65
G.SKILL Ripjaws 4GB SDRAM DDR3 1333 (PC3 10666)
Phenom II x2 555 @ 3.2GHz

Also noted, I will be running an eyefinity setup across 3 23" displays at 5760x1080.

Thanks guys!
    
CPUMotherboardGraphicsRAM
AMD Phenom II x2 555BE@ 3.6GHz ASUS M5A99X EVO Sapphire 5770 G. Skill Ripjaws X DDR3 1600  
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AMD Phenom II x2 555BE@ 3.6GHz ASUS M5A99X EVO Sapphire 5770 G. Skill Ripjaws X DDR3 1600  
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Seagate Barracuda 7200.12 500GB Windows 7 Ultimate x64 ASUS 27"  Radimax 530w 
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post #2 of 14
In eyefinity, no. This is because the CPU is doing the same amount of work (the AI isn't any more demanding since its not tied to resolution) but the gpus are working harder because of the higher res.
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post #3 of 14
Thread Starter 
Quote:
Originally Posted by railfan844 View Post
In eyefinity, no. This is because the CPU is doing the same amount of work (the AI isn't any more demanding since its not tied to resolution) but the gpus are working harder because of the higher res.
Alright, great. Mostly what its going to be running is the Battlefield series, a couple of racing games, and Crysis 1.

So at this high resolution, CPU power should be no problem? I guess at the same time I'm really just wondering, would the performance (fps) be better if I was running a Quad?
    
CPUMotherboardGraphicsRAM
AMD Phenom II x2 555BE@ 3.6GHz ASUS M5A99X EVO Sapphire 5770 G. Skill Ripjaws X DDR3 1600  
Hard DriveOSMonitorPower
Seagate Barracuda 7200.12 500GB Windows 7 Ultimate x64 ASUS 27"  Radimax 530w 
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Rosewill R220 (HL2 MOD) 
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CPUMotherboardGraphicsRAM
AMD Phenom II x2 555BE@ 3.6GHz ASUS M5A99X EVO Sapphire 5770 G. Skill Ripjaws X DDR3 1600  
Hard DriveOSMonitorPower
Seagate Barracuda 7200.12 500GB Windows 7 Ultimate x64 ASUS 27"  Radimax 530w 
Case
Rosewill R220 (HL2 MOD) 
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post #4 of 14
Thread Starter 
bump- i just need someone to help me with this last question
    
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AMD Phenom II x2 555BE@ 3.6GHz ASUS M5A99X EVO Sapphire 5770 G. Skill Ripjaws X DDR3 1600  
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Seagate Barracuda 7200.12 500GB Windows 7 Ultimate x64 ASUS 27"  Radimax 530w 
Case
Rosewill R220 (HL2 MOD) 
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Reply
    
CPUMotherboardGraphicsRAM
AMD Phenom II x2 555BE@ 3.6GHz ASUS M5A99X EVO Sapphire 5770 G. Skill Ripjaws X DDR3 1600  
Hard DriveOSMonitorPower
Seagate Barracuda 7200.12 500GB Windows 7 Ultimate x64 ASUS 27"  Radimax 530w 
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Rosewill R220 (HL2 MOD) 
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post #5 of 14
There will pretty much always be a bottleneck. Regardless of your resolution, yeah your definitely not going to see the full potential of CFX 6870s, especially at 3.2
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post #6 of 14
a x4 cpu can help, but I would say 5- 6 %
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post #7 of 14
A quad clocked to about 4ghz would definitely be preferrable
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post #8 of 14
Thread Starter 
Quote:
Originally Posted by trulsrohk View Post
A quad clocked to about 4ghz would definitely be preferrable
So do you think a 955 with a CM Hyper 212+ could hit 4.0 100% stable on this board?
    
CPUMotherboardGraphicsRAM
AMD Phenom II x2 555BE@ 3.6GHz ASUS M5A99X EVO Sapphire 5770 G. Skill Ripjaws X DDR3 1600  
Hard DriveOSMonitorPower
Seagate Barracuda 7200.12 500GB Windows 7 Ultimate x64 ASUS 27"  Radimax 530w 
Case
Rosewill R220 (HL2 MOD) 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
AMD Phenom II x2 555BE@ 3.6GHz ASUS M5A99X EVO Sapphire 5770 G. Skill Ripjaws X DDR3 1600  
Hard DriveOSMonitorPower
Seagate Barracuda 7200.12 500GB Windows 7 Ultimate x64 ASUS 27"  Radimax 530w 
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Rosewill R220 (HL2 MOD) 
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post #9 of 14
Possible, if not 4, at least 3.8.

I would still think your min is going to go well below 60 fps with a Phenom II chip though, just depends on if you care or not. And what game it is makes a huge difference, newer games that use 4 or more cores won't show anything horrible, but older games (like crysis) that use only 2 cores will hurt a bit.
    
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post #10 of 14
look this, I think you should find out

http://www.overclock.net/ati/963991-...d-oc-3-6g.html
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