read this for your own good:
*www.thinkdigit.com/forum/power-sup...89-power-supply-blacklist-thread-newbies.html
i am not a gamer but 5770 should be able to handle most games at medium settings & less than full HD(1920*1080)resolution.however if you want to play all games at max settings on a full HD screen 6950 is a good option.