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What is the best SLI/Crossfire config that will run comfortably with my PSU.

post #1 of 6
Thread Starter 
I picked up this PSU not too long ago. I would like some opinions on which cards are best to Xfire/SLI with this. At first I wanted to go with a single card solution (Gtx 570/Radeon 6970) but I think multi-card would be better for me. I'm currently using a 1080p monitor but would like to upgrade to 2560x1440 down the line. Basically, I'm asking what are the two most powerful cards I can safely run with this (with some overclocking headroom with minor voltage increases for CPU and GPU). I'm still on the fence to either staying with the Red Team or go Green!
post #2 of 6
580 sli
^3
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^3
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post #3 of 6
^^^ 580s
Endless Overclock
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Endless Overclock
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post #4 of 6
2x6970s for sure. The extra VRAM will definitely help out at 1440p and 2x580s would be too much for the PSU anyway, I doubt the above posters even looked at the link to the PSU you bought.
Edited by Am* - 8/17/11 at 3:54pm
    
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post #5 of 6
HD 6970 2GBs or HD 6950s. Lower power consumption then GTX580 and good for 1440p. If GTX580 is 20% faster then HD 6970 @ 1080p is only 10% @ 1440p.
Ishimura
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Ishimura
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Silent Knight
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Intel Core i7 3770K @ 4.6GHz ASRock Z77E-ITX eVGA GTX 1080 Ti Hybrid AVEXIR Blitz 1.1 16GB DDR3-2400MHz  
Hard DriveHard DriveCoolingCooling
SanDisk Ultra II 960GB Toshiba X300 5TB Corsair H100i GTX eVGA Hybrid Water Cooler  
CoolingOSMonitorKeyboard
4x GentleTyphoon AP-15 Windows 10 Pro 64-Bit Philips Brilliance BDM4065UC 4K Razer BlackWidow Chroma  
PowerCaseMouseMouse Pad
eVGA SuperNOVA 750 G3 Define Nano S Logitech G502 Proteus Core PECHAM Gaming Mouse Pad XX-Large 
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Audioengine D1 DAC Mackie CR Series CR3 Audio-Technica ATH-M50 Sennheiser HD 598 
Audio
Sony XB950BT 
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AMD Phenom II X4 955 @ 4.2GHz ASUS M4A79XTD EVO AMD Radeon HD 7970 3GB @ 1200/1500 2x 4GB G.SKILL Ripjaws X DDR3-1600 
Hard DriveHard DriveHard DriveCooling
OCZ Agility 3 60GB WD Caviar Green 1.5TB 2 x Seagate Barracuda 2TB XSPC Raystorm 
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post #6 of 6
Thread Starter 
I was thinking the 580s in sli might be too much. I'm not sure if I'm understanding the specs correctly. The power requirements for one 580 shows this:
Quote:
"Minimum of a 600 Watt power supply. (Minimum recommended power supply with +12 Volt current rating of 42 Amps.)"
Is it a problem if my PSU is rated only at 40amps on one the +12 Volt rails? I'm leaning more towards 570s in SLI or maybe 6950/6970 in Xfire (2GB models noted). Are there even 2gb models of a 570??
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Overclock.net › Forums › Graphics Cards › Graphics Cards - General › What is the best SLI/Crossfire config that will run comfortably with my PSU.