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Nvidia cards and different memory size?

post #1 of 5
Thread Starter 
Hey, is it so that in sli that nvidia only will use the memory of the top card?

If so, can i then run a 4gb on top and 2gb on bottom?

Cause the pc store i have here only has this card left of the "stock cooler" version: http://www.komplett.no/k/ki.aspx?sku=750946

And this is the card i got now on top: http://www.komplett.no/k/ki.aspx?sku=759274#extra

I have to send in my gainward card cause it reaches 95-97c at 70% load and sounds like a vacum, so im sending it in on the waranty, but i want to echange it into another 680 but the zotac card was the only available with "stock cooler" of the 600 series.
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Black pearl
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post #2 of 5
it is my understanding that when running sli that the memory of the cards load all of the same textures etc.

so if both cards have different mem sizes you will be limited to 2gb on both cards.

only as strong as the weakest link sort of situation. same behavior with the gpu and memory speeds i believe. the faster cards slow down to match the slowest card.

what resolution are you running, are you using alot of mods to improve textures? if you are running a surround setup and mods yes the 4gb may be needed but it again was my understanding that a single 1080p display shouldn't need a 4gb card in a normal unmodded game.

if its possible why not sell the zotak and buy a matching evga?
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post #3 of 5
Thread Starter 
YEah, alright, that made up my mind, im getting my money back on the gainward card to buy another of the same evga (but the new evga is the "classified" overclocked version of my current evga card)
Edited by sonarctica - 9/9/13 at 8:54am
Black pearl
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Black pearl
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post #4 of 5
so its basically the same card. Whichever is slower is what both should run at. so might be worthwhile to download the EVGA program for OC and see if you can get your standard card to run at the specs of the newer OC card. So long as the pcb is the same design it should be pretty easy to do.

i think the evga version of the OC utility is precision x? or something along those lines...

best of luck to you!
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post #5 of 5
Thread Starter 
Thanks smile.gif

I am planning to run the oc card first, push it to the limit and is the temp is fine, im then ocing the stock card to the exact same stats as the OC'ed runs at smile.gif
Black pearl
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core i7-3610qm 2.8ghz (3.2ghz turbo mode) Intel HM77 Chipset nVIDIA Geforce GTX 680M 4gb DDR3 1600MHz 
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2x mSata Sandisk U100 in msi super raid 0 BD Writer / Blu-ray / DVD Super Multi Unknown 2-in-one cooler for cpu and cpu 80mm Genuine Windows® 7 Home Premium 64bit 
MonitorKeyboardPowerCase
17.3" Anti glare full HD 1920x1080 LED backlight Steelseries 102 keys MSI execlusive ECO engine 180 watt MSI GT70 
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Black pearl
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CPUMotherboardGraphicsRAM
core i7-3610qm 2.8ghz (3.2ghz turbo mode) Intel HM77 Chipset nVIDIA Geforce GTX 680M 4gb DDR3 1600MHz 
Hard DriveOptical DriveCoolingOS
2x mSata Sandisk U100 in msi super raid 0 BD Writer / Blu-ray / DVD Super Multi Unknown 2-in-one cooler for cpu and cpu 80mm Genuine Windows® 7 Home Premium 64bit 
MonitorKeyboardPowerCase
17.3" Anti glare full HD 1920x1080 LED backlight Steelseries 102 keys MSI execlusive ECO engine 180 watt MSI GT70 
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