Can a GTX 960 run with a 240 watt PSU?

[Zelyth]

I am interested in buying a new GTX 960 for my Alienware X51 R2 to replace the GTX 645 it came with. The external PSU supplies 240 watts, and the 645 has worked very well so far without issue. Will the GTX 960 run OK with the 240 watt PSU?

If not, what wattage will I need for the 960 (nothing else in the system is hardcore) to run pleasantly, and how would I go about the business with the PSU? Am I able to put an internal PSU in the place of the current power brick I have? Does that work?

Thanks!

 

[renz496]

No. Nvidia recommends 400w PSU for 960. At best you can get 750ti. Unless you can replace your current psu. But i don't know what form factor your x51 use. If they have regular sized one (standard ATX) then it will be easily replaced.

 

[envy14tpe]

As said. No you can't run a 960 on the 240W PSU. You need at least 430W to be safe. There are lots of PSUs like that. But you might as well get a 500W one. What size is your PSU. The regular size ones might not fit in your case.

 

[Archaic59]

This is the largest power brick rated for the X51-
http://accessories.us.dell.com/sna/productdetail.aspx?c=us&l=en&s=dhs&cs=19&sku=332-1432&mfgpid=227504
At 330 watts, it will not be able to power GTX 960.

 

[Zelyth]

Thanks everybody - huge help. For the first two posters, the PSU isn't very common - it's an external power brick, outside of the case. Hence why I especially asked about replacing it. I'll probably go with the GTX 750 Ti, it looks like it would do my needs just fine at a pretty good price.

A small extra question: I want to get the EVGA GeForce GTX 750 Ti Superclocked from amazon, instead of the regular EVGA 750 Ti. What does the superclocked version do more? Will it require more power?

 

[renz496]

The superclock will have higher gpu (probably memory as well) clock than standard 750ti. But the card probably will need 1 6 pin power connector although i don't think it will affect psu requirement at all.

 

[Zelyth]

Great! From what I've seen in many videos, the X51 has either two 6-pin connectors, or one 6-pin and one 8-pin. So I think I'll be good. Would it be worth the money to buy a $160 330w PSU to upgrade from my 240w?

Sorry to ask so many questions, that should be the last one.

 

[renz496]

Isn't that quite expensive for 330w PSU?