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i had one gtx 550ti 1Gb but now im getting second one as well for SLI .

the problem is that now the 1GB version is costlier than the 1.5 GB version .

should i get the 1.5GB version ? coz its way more cheaper than 1 GB version . but my previous one was 1 GB.

Nvidia says -
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  1. Best answer
    Yes you can SLI nvidia graphics cards with different memory sizes

    "When purchasing a second graphics card, you should try to match the memory size so that you are ensured full value and performance from your purchase. However, while it is not recommended, NVIDIA does offer the flexibility to run graphics cards with different sized memory by using CoolBits. Using CoolBits (value set to 18), you can force both of the cards to use the lower of the two memory sizes and operate them together in SLI mode. When dissimilar memory sizes are enabled to work together using CoolBits, the effective memory size for each card becomes the smaller of the memory size"

    And as far as I can tell the memory size is the only difference between the two models
  2. Best answer selected by pratmodi.
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