Need help Choosing a GPU for my Alienware x51

VXER · 17 Jun 2014

So after being happy about upgrading my 660 to a 770 it turned out that my so called "GAMING PC" cant be upgraded to the 770 because of the psu 250w that cant be changed to a bigger one and for the 770 it uses 250 which in this case can never work on this, so i've asked some guy and he told me that for a 250w psu you need to get a GPU that uses max 180w in order to get it to run with my x51
so bottom line i need your help to tell me what GPU should i get ?as what is the most powerful GPU can i have on this pc,thanks.

Boozad · 17 Jun 2014

Why can't you change the PSU? I wouldn't want be gaming with a 250W PSU to be honest.

VXER · 17 Jun 2014

Because of its small size.

Boozad · 17 Jun 2014

There's more information here.

VXER · 17 Jun 2014

Yeah i saw this i just don't get why cant the 760 run on it, it makes no sense the 760 uses 170w it should run fine on the x51 or am i missing something ?

VXER · 17 Jun 2014

Never mind ill just try to sell this piece of crap if not ill just throw it out of the window.

Boozad · 17 Jun 2014

You're missing a fair bit. Taken from here:

Need help Choosing a GPU for my Alienware x51-capture.jpg

That 500W has to cover every single component in your machine, and ideally you need a 10% overhead. I'm not sure what a 760 pulls when under load but a 250W PSU is nowhere near big enough. If you're GPU alone uses 170W what is going to power the rest of the system? 80W?