Existe 3 modelos da GTX650 e a melhor delas eh:
GTX650 TI BOOST Clock Gpu Clock Memoria Bits Tx Transferencia Valor +-
980Mhz 6Ghz 192 144,2Gb R$650,00
Ati Radeon HD 6790 Clock Gpu Clock Memoria Bits Tx Transferencia Valor +-
840Mhz 4,2Ghz 256 134,4Gb R$570,00
GTX650 TI BOOST Clock Gpu Clock Memoria Bits Tx Transferencia Valor +-
980Mhz 6Ghz 192 144,2Gb R$650,00
Ati Radeon HD 6790 Clock Gpu Clock Memoria Bits Tx Transferencia Valor +-
840Mhz 4,2Ghz 256 134,4Gb R$570,00
