what PSU should i get for 780's in SLI

benkrems · Mar 29, 2014

Hey guys just wondering what PSU I should get.

System specs:

EVGA GeForce GTX 780 Superclocked ACX 3GB
Intel Core i7 4770K
Samsung 840 EVO Series 120GB SSD
Seagate Barracuda 1TB ST1000DM003
Corsair Vengeance Pro CMY16GX3M2A1600C9R 16GB (2x8GB) DDR3
Corsair Hydro Series H100i CPU Cooler
Microsoft Windows 8.1 64bit OEM Corsair Obsidian 750D Case with Window
ASUS Maximus VI Hero Motherboard

Thanks

animal · Mar 29, 2014

For a system running two GTX 780's in SLI it is recommended to have ~ 850W. If you plan on overclocking, I suggest adding 50-100W to the following reference recommendation(s):

http://www.realhardtechx.com/index_archivos/Page362.htm

Also, get a quality PSU from a top tier company such as Seasonic, XFX, Antec or Corsair (except their CX series).

benkrems · Mar 29, 2014

okay thanks I have been stressing so much about a PSU I was thinking of the EVGA P21000W PSU would that be alright compared to a Corsair AXI860 witch is $30 more?
Or even a AX 860 witch is $40 cheaper then the 1000W

animal · Mar 29, 2014

That would be a good choice.

benkrems · Mar 29, 2014

and I do plan on overclocking the CPU to 4.4 at 1.3v

And could a 860 power 780 ti sc in sli with that overclock?

animal · Mar 29, 2014

The EVGA 1000W PSU should easily handle two 780's and the CPU overclock with no problem, However, two 780 ti's would need ~ 950W without any overclock, so you may have problems using the EVGA PSU with a pair of ti's and oc'ing the CPU.

benkrems · Mar 29, 2014

okay well two 780 Ti is over kill for what I will be doing so what PSU do u recommend?

animal · Mar 29, 2014

any of these would be fine:

http://pcpartpicker.com/parts/power-supply/#R=5,4&W=950,1050&m=52,11,71,39&sort=a9

benkrems · Mar 29, 2014

okay will the EVGA one work has well?

animal · Mar 29, 2014

Yes, the EVGA would be fine

benkrems · Mar 29, 2014

do you know what tiered the evga and the seasonic one is?

benkrems · Mar 29, 2014

and I would like fully black cables

animal · Mar 29, 2014

Seasonic is probably considered to be the best PSU manufacturer on the market. Many companies such as XFX and Cooler Master (and a few others) have some of their PSUs made by Seasonic. EVGA has a good reputation, although I would get a Seasonic, XFX, Antec or Corsair (except their CX series) over EVGA although that particular PSU carries a 10 year warranty.

benkrems · Mar 29, 2014

Ok well im not sure if I even want sli what will I give me in gaming so I am thinking of just getting one and if I want upgrading an another in the future

benkrems · Mar 29, 2014

and people have been saying a good 850w will do?

animal · Mar 29, 2014

for a single GPU and overclocking, yes, for multiple 780's and extensive overclocking, it may or may not

benkrems · Mar 29, 2014

well I found out that most of the games I play only support a single GPU so I might go with a 780TI SC

what PSU should i get for 780's in SLI

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