4870/4890 power help ?

[stiv121]

currently deciding between these 2 graphics cards

http://www.overclockers.co.uk/showproduct.php?prodid=GX-046-GI&groupid=701&catid=56&subcat=939

http://www.overclockers.co.uk/showproduct.php?prodid=GX-124-XF

but i do not know if my dell would be able to power them i am currently running an 8800 gt in the dell.
i do not know much about psu's so i took down most of the information from the sticker

375w psu

output +5v --- / 22a max - 12v --- / 1a max

+5v (FP) --- / 2a max + 3.3a max --- / 17a max

+ 12va --- 18a max + 12vb ---- 18a max

combined power on 3.3v and +5v rails must not exceed 150w

+12va and +12vb railes not exceed 360w

max output do not eceed 375w


Thats what i took down and i have not idear if either card will work in my system hopefully the 4870 will

Any help will be great thanks

 

[LoadsaMoney]

I doubt that PSU would handle any of those tbh, but a 5770 might be ok, as it uses less power than them, and id say now, its inbwetween those 2 after the boost it got from the 9.12's.

 

[reiyushin]

Yea, the 5770 draws 60w less than the 4890.