HI, I recently brought hd 5670 but i have to return it as it is not compatible (pci 2.1).So tell me which on is better among gt 240 ddr3 and gt 440 ddr3 as i need to buy gpu which doesnt require a external power connector and which is pci 2.0
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A GT 240 has fewer cuda cores but significantly better bandwidth. The 240 has a higher graphics clock and higher processor clock.
I'd go for the 240. --edit--- Actually, they'd be pretty close in performance. I'd go for the less expensive card in this case.