which has more strong gpu and how much
http://www.flipkart.com/powercolor-amd-ati-radeon-hd6750-1-gb-gddr5-graphics-card/p/itmd5ynerymtmfyf?pid=GRCD5YND3W72GXQC&_l=Yq6MEQbXc2HSeS9hCtaAPA--&_r=dAX%20hwTHMYAr8qRvuSK2pw--&ref=b5d8a5e7-6536-4029-b163-7f7e1a31ae29
http://www.flipkart.com/asus-nvidia-geforce-gt-440-1-gb-gddr5-graphics-card/p/itmd4zgz6zecdwvt?pid=GRCD4ZGZ2RM6D3AW&_l=rNOfRA_2s1pRNn46QI4BxA--&_r=EXsR5xbG+efsAHnjP547Iw--&ref=4905e953-f370-4560-a23e-d16be673f907
plzzz suggest me the right answer because it will be my final choice to upgrade mu current graphic card...
http://www.flipkart.com/powercolor-amd-ati-radeon-hd6750-1-gb-gddr5-graphics-card/p/itmd5ynerymtmfyf?pid=GRCD5YND3W72GXQC&_l=Yq6MEQbXc2HSeS9hCtaAPA--&_r=dAX%20hwTHMYAr8qRvuSK2pw--&ref=b5d8a5e7-6536-4029-b163-7f7e1a31ae29
http://www.flipkart.com/asus-nvidia-geforce-gt-440-1-gb-gddr5-graphics-card/p/itmd4zgz6zecdwvt?pid=GRCD4ZGZ2RM6D3AW&_l=rNOfRA_2s1pRNn46QI4BxA--&_r=EXsR5xbG+efsAHnjP547Iw--&ref=4905e953-f370-4560-a23e-d16be673f907
plzzz suggest me the right answer because it will be my final choice to upgrade mu current graphic card...