Hello bit, I'm after a graphics card for my fathers PC, its a core 2 duo something (built it last year and can't remember!) it has on board graphics so I'm looking to upgraded it to play the odd game for his birthday. The two cards at this price point seem to be the Radeon HD 4670 and Nvidia 9600GT in reviews both seem to be similarly matched. So any advice or other options? Cheers.