POwer supply for i7-4790k, asus maximus 7 hero, EVGa gtx 780 Ti

jorgitojr · Jul 1, 2014

yeah i pretty mucho tried to choose my high end pc, But i just dont know how the correct power source thats i need, also i am planning to overclock And SLi if is possible the cost needs to be minimal for the power supply

chris987 · Jul 1, 2014

sli... overclocking... you need serious power and something of the finest quality. dont expect you can get away with 50 bucks!

Price breakdown by merchant: http://pcpartpicker.com/p/RQnnHx/by_merchant/
Power Supply: EVGA SuperNOVA 1000G2 1000W 80+ Gold Certified Fully-Modular ATX Power Supply ($136.81 @ Newegg)
Total: $136.81
Prices include shipping, taxes, and discounts when available

Gameduck · Jul 1, 2014

Get a 900W power supply, those GTX 780Ti's are gonna use big amounts of power =)

DCV · Jul 2, 2014

I have the exact same components and i am using the EVGA Supernova 1000G2(chris987 posted the link). It's great. You can OC both GPUs, as well as the CPU without problems.

Dark Lord of Tech · Jul 2, 2014

Ramp it up to the best 1300w on the market at a great price , Made by SuperFlower.

PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA SuperNOVA 1300 G2 1300W 80+ Gold Certified Fully-Modular ATX Power Supply ($177.04 @ Newegg)
Total: $177.04
Prices include shipping, taxes, and discounts when available

ksham · Jul 2, 2014

1300W is overkill.

+1 @chris987

DCV · Jul 2, 2014

He has only one card atm, so 1300W might be too much and end up working at something like 50% efficiency when idle.

ksham · Jul 2, 2014

DCV :

That's ideal efficiency to some people. Although, on idle, I doubt it'll use up 50%.

Scampi · Jul 2, 2014

I think people are getting a little carried away with the wattage required :lol:

Considering it's possible to run a single GTX 780ti & i5 4670k on a 450W PSU.
http://www.youtube.com/watch?v=ajiN9aVOv4A

GTX 780ti SLI System Wattage with GPU in FULL Stress = 617W/52 amps.
http://www.guru3d.com/articles_pages/gtx_780_ti_sli_geforce_review,4.html

750W would do it, but go 850W. If you want 1000W that's up to you.
XFX Balck Edition 850W (re-branded Seasonic X-series): http://pcpartpicker.com/part/xfx-power-supply-p1850bbefx

EVGA Supernova G2 850W: http://pcpartpicker.com/part/evga-power-supply-220g20850xr

ksham · Jul 2, 2014

@Scampi: It is not recommended to use up power that close to the total provided by the power supply.

chris987 · Jul 2, 2014

@Scampi: also dont forget that, it was just a test for several minutes under controlled room temps and ideal conditions which doesnt represent the average user. you want your psu to last for years not months! in this case though yes an 850w one would suffice but really 750w isnt enough. what about when both gpu are overclocked?

Scampi · Jul 2, 2014

If your over volting or using extreme souped up 780ti's then sure go upto 1000W. Otherwise 850W is fine....QUALITY 850W like those suggested.

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POwer supply for i7-4790k, asus maximus 7 hero, EVGa gtx 780 Ti

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