what is BEST graphic card for ubuntu 12.04?

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http://askubuntu.com – i know my question is already asked but all question old, i am going to build myself PC case and i already bought Motherboard, 16GB ram, and power supple (850 Watt), but only thing that i am so confused about it, is Graphic card, i dont know what is BEST graphic card for linux/ubuntu 12.04LTS i heard from different peoples telling me i should NOT buy NIVIDIA nor ATI because both of them have/has very bad drivers, is that true ? please tell me which company is better (better mean have/has good drivers for their graphic cards) 1- ATI 2- AMD 3- NIVIDIA 4- ASUS 6- XFX please help me Ubuntu com (HowTos)