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I need to upgrade my power supply for a new graphics card im buying, will the change from a 300W to a 550W make a difference ?

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  • Power Supplies
  • Graphics Cards
  • Components
Last response: in Components
July 30, 2013 4:38:54 PM

Any help please ? :) 

More about : upgrade power supply graphics card buying change 300w 550w make difference

July 30, 2013 4:43:20 PM

More than likely yes, that should be enough. You should post what card. You can also look on that manufactures website for a minimum wattage requirement.
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a c 270 ) Power supply
a c 514 U Graphics card
July 30, 2013 4:45:03 PM

300w will run a graphics card that does not need a auxiliary 6 pin power lead.
If you install a more demanding card, it will not run.
a 550w psu of good quality will run a card as strong as a 7970 or GTX770.
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July 30, 2013 4:50:27 PM

geofelt said:
300w will run a graphics card that does not need a auxiliary 6 pin power lead.
If you install a more demanding card, it will not run.
a 550w psu of good quality will run a card as strong as a 7970 or GTX770.


the card that i am getting is a sapphire 7850 OC 2GB .... is it possible that i add two power supplies to my computer or will the 550W run my card and my computer fine .

my system is :-
intel core i5 2400k
8GB RAM
500GB HD
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a b ) Power supply
a b U Graphics card
July 30, 2013 4:53:39 PM

^ Stress the "good quality". Not all power supplies of equal rated power are the same. Some exaggerate while other outright lie. Tell us where you shop and a budget and we'll pick you out a good one.
-Bruce
BTW if geofelt says something ... good idea to listen.
one quality psu is the way to go.
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July 30, 2013 4:57:40 PM

dish_moose said:
^ Stress the "good quality". Not all power supplies of equal rated power are the same. Some exaggerate while other outright lie. Tell us where you shop and a budget and we'll pick you out a good one.
-Bruce
BTW if geofelt says something ... good idea to listen.
one quality psu is the way to go.


i shop on scan.co.uk or on amazon.co.uk or on pcworld.co.uk , if you could reccomend a good one please ... i would like something at arround 60£ as the card its self is arround 140£
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July 30, 2013 5:02:14 PM

A decent 550w power supply should be more than enough. I'm running my 7850 off a 380w power supply right now. Make sure to try and get a power supply that is at least 80+ certified or better.
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