Please friends help me. 
I wanna buy a new card. 
I have chosen 9500gt and 8600gt. 
And i also wanna know which is better a 1gb or 512mb? 
I wanna play games like GTAIV,NFS PRO STREET,BURNOUT PARADISE,COD5 AND OTHER. 
I have a 17inch monitor with 1024*768 resolution. 
Does the memory affects the resolution. 
Which one is better for me?