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Will Antec Earthwatts 500W PSU be enough for a GTX 770?

Last response: in Components
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May 31, 2013 11:01:31 AM

Hi all,

I'm looking to get the best graphics card for the budget I have, which will just about afford me a 770. But I'm worried whether the 770 may be too much for my PSU, which is an Antec Earthwatts 500W psu which came with my Antec Sonata III case.

My current setup is an i5 760, 4 GB PC12800 Ram, one 256gb SSD, one 1TB Hard drive, one DVD Rom.

Do you think I can get away with the 500w PSU? I think the max load of the 770 is 230w. I realise the 770 recommends a slightly higher wattage, but anyone know if maybe the Earthwatts 500W can provide enough given that it is meant to be decent quality?

Many thanks for any responses.
May 31, 2013 2:02:26 PM

its a solid enough unit that it will work, especially if its the newer EA500 PSU
May 31, 2013 3:01:04 PM

dirtyferret said:
its a solid enough unit that it will work, especially if its the newer EA500 PSU


Thanks for the reply dirtyferret.

Do you know if there is much risk involved in terms of what happens if during full load you exceed the power that the PSU can provide?
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May 31, 2013 4:54:57 PM

With that specific psu it will shutdown.
December 30, 2013 9:12:34 AM

With that PSU you would be cutting it very close as the GTX 770 Needs 42Amps of power across the 12v rail and this PSU has 44amps so I would recommend that you upgrade your PSU to something like a corsair with a strong 12v rail.
December 30, 2013 9:15:27 AM

GeForce GTX 770 needs at least - 42A on the 12v rail and a 600W PSU.
January 3, 2014 8:04:10 AM

SR-71 Blackbird said:
GeForce GTX 770 needs at least - 42A on the 12v rail and a 600W PSU.


"and" ??

i could name ten 550w units with 42a (or more) on the 12v
i can also name ten 600w with less then 42a on the 12v
!