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The 932 should suit you fine. But if you need the 4 way Crossfire then get the Xi knmow im using atx motherboard and 2 cf in the future. but, i have a but hhh, i want the best air cooling and in my country the 922 is 25$ cheaper than the 932 so it isnt worth the money.
Then the 932 is great for youi dont think anyone need 4 way sli/cf beacuse today even 2 way cf/sli can handle any game at vh graphic. at maximum resolution.