GTX 580 3Gb and 1.5Gb in SLi?

LastVampyer

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Jul 30, 2010
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Hey guys,

I'm in the process of finishing off my gaming PC and have bought myself a Gainward GTX 580 Phantom 3Gb and was just wondering if I could use the 1.5Gb model of the same card in SLi. As far as I know it's got the same clock speeds and all so I think it will work but would very much like a second opinion before committing to buying another card.

The system so far is as follows:

Motherbaord: Asus P8Z68-V PRO (0606 UEFI update)
CPU: Intel i5 2500K clocked at 4.3Ghz and has a Corsair H100 for cooling
RAM: 8Gb Corsair Vengeance @ 1600Mhz 8-8-8-24
Graphics Card: Gainward GTX 580 Phantom (3Gb)
SSDs: 2 64Gb Crucial M4s (0009 update) in RAID 0 and 2 64Gb Crucial C300s as secondary storage
Power Supply OCZ ZX 1250watt modular power supply
All wrapped up in a Thermaltake Level 10 GT which supports the H100 without having to mod anything which is sweet!

Anyway...

If anyone knows if I can use the 1.5Gb model with the 3Gb model that I already have, I would really love to know.

Thanks :D
 

LastVampyer

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Jul 30, 2010
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Apparently it will work but the 3Gb card will only be able to use 1.5Gb :(