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Understaing dual gpu cards?

post #1 of 3
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Hello everyone, I was looking at the gtx 690 and was wondering since its a dual gpu card with 4gddr5 and 512bit is that what it runs at or is it halved since thats what single cards do when bridged in sli/cf. Ive had an dual card before but never understood how they worked properly.
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The Beast
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post #2 of 3
Dual gpu cards are the same as two single cards in SLI, in this case two gtx 680 2gb's. So yes, everything is "halved". The gtx 690 has 2gb usable vram per gpu and has 256bit memory bandwidth for each gpu.
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SB goodness
(14 items)
 
Core 2 duo
(9 items)
 
folder
(8 items)
 
CPUMotherboardGraphicsRAM
2500k @ 4.6ghz,1.47v 24/7 GIGABYTE GA-P67A-UD4-B3 $200 EVGA GTX 970 SSC @ 1505mhz 16gb 2400 SuperSC DDR3 
Hard DriveCoolingOSPower
960gb Sandisk Ultra II Corsair H100i v2 Windows 7 64-bit SeaSonic X650 Gold 
CaseMouseMouse Pad
Obsidian Series® 750D Airflow Edition Zowie FK 2 Speed by Surface/Steelseries SX/Steelseries 9HD 
CPUMotherboardGraphicsRAM
Core 2 Duo E6750 Asus P5n32-e SLI EVGA 8800gt superclocked @ 750/725 gaming/folding 4gb Fatal!ty ddr2 800 
Hard DriveCoolingOSPower
64gb SSD Stock Win 7 64 bit Corsair CX500 
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NZXT 
CPUMotherboardGraphicsRAM
Intel Pentium E6300 MSI G41M4-F GTX 460 2gb A-data ddr2 800 
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post #3 of 3
Each GPU has 2GB of RAM on a 256 bit bus, so you really only have 2GB of RAM.
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