MAX video card possible

[darkn3ss1990]

hey im new to this forum
and also a complete noob

but i was wondering wats the max possible graphics card i can put in my p4 computer?
my card slot is agp and (not sure if i need to say) but my mother board is 478 cheers !

from darkn3ss

 

[Rudster8161]

http://www.newegg.com/Product/Product.aspx?Item=N82E16814150223

EDIT:
mods move this to hardware\software

 

[Mammoth]

I love how the backplate is black on XFX cards. <3
...But I'd rather save a bit and get a new mobo CPU and video card than getting a top of the line card for an outdated interface.