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6950 Crossfire question

post #1 of 4
Thread Starter 
Planning on redoing my system and eventually going crossfire. I have the 6950 1GB, will it cf with the 2GB version? I know it does not combine the memory totals so can you set the cf to use the memory of the 2GB card and just have the 1GB card for grunt work? I've never used CF so looking for some insight.
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Gaming
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HTPC
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My Stuff
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CoolingOSMonitorKeyboard
Cougar 120mm PWM Windows 10 60" Vizio M60-C3 4K Logitech K400 
PowerCaseMouseAudio
OCZ ModXStream 600w Silverstone GD05 Logitech K400 / MCE Remote Denon AVR-X2200W 
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post #2 of 4
Yes, it will work.
The key to crossfire is that you can crossfire any two GPUs so long as they are the same.
Read: same GPUs, not graphics cards.

You are correct, the memory does not combine. It gets shared. You cannot allocate the memory usage though. It will just use it as normally and if your 1 GB card runs out of vram there will be a bottleneck.
post #3 of 4
It will be a waste to crossfire a 2GB card with a 1 GB card. You will never see the extra 1 GB out of the 2 GB card. It is best for you to just get another 1 GB card and crossfire since you already have a 1 GB card. Unless you are planning to go 2 GB on both cards or you got a killer deal on a 2 GB card (in which case I will recommend to sell your 1 GB and grab a 2 GB).
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post #4 of 4
Thread Starter 
Ok, thats kind of what I was thinking but wasn't sure.
Gaming
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Intel Core i3-3220 ASRock H77M EVGA 750ti CORSAIR Vengeance 8GB DDR3 1600 
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CoolingOSMonitorKeyboard
Cougar 120mm PWM Windows 10 60" Vizio M60-C3 4K Logitech K400 
PowerCaseMouseAudio
OCZ ModXStream 600w Silverstone GD05 Logitech K400 / MCE Remote Denon AVR-X2200W 
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Gaming
(20 items)
 
HTPC
(21 items)
 
My Stuff
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CPUMotherboardGraphicsRAM
Intel Core i3-3220 ASRock H77M EVGA 750ti CORSAIR Vengeance 8GB DDR3 1600 
Hard DriveHard DriveHard DriveOptical Drive
1TB WD Black  2TB WD Green 4TB WD My Book Samsung Blu-Ray 
CoolingOSMonitorKeyboard
Cougar 120mm PWM Windows 10 60" Vizio M60-C3 4K Logitech K400 
PowerCaseMouseAudio
OCZ ModXStream 600w Silverstone GD05 Logitech K400 / MCE Remote Denon AVR-X2200W 
AudioAudioAudioAudio
Polk Audio Monitor II - CS2 BIC F12 - 12" Sub Polk Audio Monitor II - Monitor 70 x 2 Polk Audio Monitor II - Monitor 30 x 2 
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