who is the best ati or nvidia i know both are best but at the age of both company nvidia i s older than ati at time launching first gpu in the world first step launched first agp slot gpu(graphic card) to future now is here on knee nvidia lord of all gpu company 1nvida (gtx580m)(quadro 6000) good texture quality support most viewer gamer choice professional choice powerfull 2ati (6990) speed powerful more cuda cores than competitor full hd no compromise for gaming sucks whole games in universe perfect detail texture but at nvidia is the god father of all graphics company for ex nvidia quadro 6000 lords of all graphic card but its for making visual fx ,gaming, super fast in the world nvidia ahead!
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questions like wich is best ati or nvidia always turn out to never end . nvidia is leading but things could change any time it also depends on what you want from your graphics card .
the real question is , what do you need a "best graphics card" for? if we knew what its intended purpose is, then we could then recommend the best there is out there.