PSU for 780 GPU Upgrade

[gareklaw]

Hi guys I'm wanting upgrade my GPU from a HD7870 to a Nvidia 780 and I don't think my 550 PSU will cope. I'm wondering if I should get a bigger PSU to cope with the 780 and if so whats a good brand/model that has long Mother board cables, relativity quite and at least 80 plus. I wont be going SLI in the future.

 

Thanks guys.

 

Current System

i5 4670K @ 4Ghz

Asrock H87 Fatality Performance

ATI HD7870

16G (4 x 4) 1866 RAM

2 TB Seagate Baracuda

128G SSD Samsung 840 Pro

Blueray Burner

Case NZXT Phantom Full case

Thermaltake 3.0 Water Performer (2 Fans 120mm Closed loop)

OCZ 550 Fatality PSU

[WoodenMarker]

Your current psu should be fine.

[xentric]

ya 550 watts with only 1 GPU you should be fine. I just would upgrade if you get another GTX 780.

[Lays]

You'll be alright, you could probably get away with a 400/450 watt.  550 should be more than enough

[Sintezza]

Well 550W should be fine, only the OCZ Fatality 550W unit, is not the best quality (sirtec unit) but still. it should be capable to handle it.

[VSG]

Any intentions to overvolt? If not, the wattage is quite fine but the particular PSU you have is not the best. You also no longer have any warranty even if you were in the warranty period if I remember correctly since the takeover of OCZ.

[mgsstar]

It should be able to handle it since a cpu overclocked system takes 340W: http://www.guru3d.com/articles_pages/geforce_gtx_780_review,9.html