Is there a major difference between these two graphics cards
http://www.pccasegear.com/index.php?main_page=product_info&products_id=22968
http://www.pccasegear.com/index.php?main_page=product_info&cPath=193_1442&products_id=21790
http://www.pccasegear.com/index.php?main_page=product_info&products_id=22968
http://www.pccasegear.com/index.php?main_page=product_info&cPath=193_1442&products_id=21790