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How many watts will my build need?

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  • Power Supplies
  • Computers
  • Build
  • Systems
Last response: in Systems
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August 15, 2014 1:31:31 PM

I'm planning on a build and want to know how many watts the computer will need, so I can get the correct power supply for maximum efficiency. Also, I would like to thank anyone that helps me with this.

My planned build is:
Western Digital 4TB Black Hard Drive
2 Nvidia GTX 780 Ti with ACX Cooler 3GB that will use SLI
Intel Core i7-4790K Processor 4.40 GHz
Windows 8.1 Full Version 64-bit
NZXT Technologies Computer Case H630 Ultra
MSI Z97 Gaming 7 Motherboard
Logitech Multimedia Speakers Z200
Corsair Vengeance 16 GB (2x8GB) 1600 MHz (PC3 12800)
4 200mm fans
5 140mm fans
Cooler Master Hyper 212 EVO
LG Blu-Ray Optical Drive
Asus 22-inch LED Monitor

If you need to know anything else, please just ask.

More about : watts build

a c 107 ) Power supply
August 15, 2014 1:33:03 PM

With two 780ti's you want 850w minimum.

If you are playing at 1080p on one monitor, this system needs some work as you are wasting almost $1000.
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August 15, 2014 1:42:12 PM

tiny voices said:
With two 780ti's you want 850w minimum.

If you are playing at 1080p on one monitor, this system needs some work as you are wasting almost $1000.

I'll probably end up using multiple monitors in the end since I like to multitask. Also I sometimes like to use programs which use a lot of ram such as sony vegas pro and other editing/recording software.
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a c 107 ) Power supply
August 15, 2014 1:43:25 PM

Its the GPUs I'm talking about. There is no difference between gaming on a 1080p screen with a single 780 and a single 780ti as the 780 is more than powerful enough to max any game. Two 780ti's is a complete waste for anything short of 4k. I urge you to only buy one.
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August 15, 2014 2:42:01 PM

tiny voices said:
Its the GPUs I'm talking about. There is no difference between gaming on a 1080p screen with a single 780 and a single 780ti as the 780 is more than powerful enough to max any game. Two 780ti's is a complete waste for anything short of 4k. I urge you to only buy one.


If I get 1 Nvidia GTX 780 Ti with an ACX cooler how many watts would I need for that along with the rest of my build? Also do you think it would be able to run games such as GTA V once that gets on PC, on maximum settings for 1920 x 1080 graphics settings?
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Best solution

a c 107 ) Power supply
August 15, 2014 2:42:57 PM

YEs a single 780ti is OVERKILL for a single monitor and will max any and all games that are not coded poorly. No problem

For a single 780ti, get 750w.
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August 15, 2014 3:13:54 PM

tiny voices said:
YEs a single 780ti is OVERKILL for a single monitor and will max any and all games that are not coded poorly. No problem

For a single 780ti, get 750w.


Thanks for all the information, I'll make sure to use your advice.
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a c 107 ) Power supply
August 15, 2014 3:18:03 PM

Glad to be able to help!
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