well ok ill see the price of gtx 750 later,but what about gtx 650?
1 dolar = 3brl = 3R$
gtx 610 is about 300R$ there
gtx 910 is a bit more than 2000R$
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edit: well GTX 710 600R$ in some markers there,idk actually my pc is broken,but ill see with my mother if will be possible to buy one after i fix my computer