Best graphics card for lowest power supply

[fuggles]

what is a good one to pick from the top 10 rows

http://www.tomshardware.com/reviews/best-graphics-card-game-performance-radeon-hd-6670,2935-7.html

 

[jaguarskx]

It depends on what your current PC specs are and which power supply (PSU) you have.

If you have a generic 250w PSU, then your best bet is probably the Radeon HD 5570.

 

[funcut]

I have 5670 and 255w and it works perfectly.

 

[12345690]

definitely a 5570, or if you want to risk it a 5670, also is it for a slim case?

 

[fuggles]

how do the 5670 and 5570 compare to the 9800 gt ?