Hey guys, so I'm pretty noob when it comes to computer parts so I'm going to need some of your help. Im looking at buying a new card around the $250-$300 price which will support games such as CSS, COD, BF3 and diablo 3. I'm not sure what the difference is between a AMD and Nvidia card is, what is good and what is not. I have listed some cards I was looking at can you please help me out and tell me which is good and if there is any better options and where is best to buy from.
Nvidia
http://www.pccasegear.com/index.php?main_page=product_info&cPath=193_876&products_id=17326
http://www.pccasegear.com/index.php?main_page=product_info&cPath=193_876&products_id=16576
AMD
http://www.pccasegear.com/index.php?main_page=product_info&cPath=193_877&products_id=19849
http://www.pccasegear.com/index.php?main_page=product_info&cPath=193_877&products_id=19823
http://www.pccasegear.com/index.php?main_page=product_info&cPath=193_877&products_id=19799
http://www.pccasegear.com/index.php?main_page=product_info&cPath=193_877&products_id=19772
Nvidia
http://www.pccasegear.com/index.php?main_page=product_info&cPath=193_876&products_id=17326
http://www.pccasegear.com/index.php?main_page=product_info&cPath=193_876&products_id=16576
AMD
http://www.pccasegear.com/index.php?main_page=product_info&cPath=193_877&products_id=19849
http://www.pccasegear.com/index.php?main_page=product_info&cPath=193_877&products_id=19823
http://www.pccasegear.com/index.php?main_page=product_info&cPath=193_877&products_id=19799
http://www.pccasegear.com/index.php?main_page=product_info&cPath=193_877&products_id=19772