The right Power Supply Unit for a strong new build

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Doggie314

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Good Afternoon all.
I wonder if any members can help me with the following sticking point on my build so far.
I am looking for the right quality power supply unit for my new build.
Components so far are as follows:

The CPU : i7-5820K (6 core haswell)

The Motherboard : Asus X99-A/USB 3.1 Socket 2011-v3

The Memory : Corsair Vengeance LPX 32GB (2x16GB) DDR4 DRAM 3200MHz C16 Memory Kit - Black

The CPU Cooler : Cooler Master High Performance V8 Version 2 Triple Tower CPU Cooler

The PC Case : Thermaltake Level 10 GT Full tower

The GPU : Zotac GTX 980 TI AMP! Extreme 6GB GDDR5 DVI HDMI 3x DisplayPort PCI-E Graphics Card

I have yet to spec SSD and additional Magnetic drive.
At this point there is still a chance that i might fit a second card, the same as the one described above. as such, I am thinking that I may have to spec a rather powerful one? ie one card needs minimum 600W, so to futureproof against the chance that i add a second GPU, i might need something alot more powerful than that.

I wonder if anyone can give me an idea of the right PSU to add to this build spec?

Can i also say thankyou to all that have answered other peoples GPU questions in the past, as these answers have proved really valuable in helping me choose the GPU. TYTY!
Doggie314
 
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Darkbreeze
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Darkbreeze

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Darkbreeze

Darkbreeze

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More performance is needed/wanted with very high resolution 4k or multiple 1080p/1440p displays. If you have a single 1080p or 1440p display, and no plans to add a 4k display or additional displays, you do not ever need a second 980TI.

You also do not need a 1000w unit with that configuration. 850w, if it's a very good unit, is more than you'll ever need, and is what is recommended, and we know the recommended capacities exceed what actual usage will be and are only there in those numbers so that factors can be accounted for.
 
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Ryan_78

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also games will never need 2 980ti, but then 2 would provide whole ton more compute performance, and would maybe match the CPU better? if you are gaming at 4K or multi-1080p or 1440p monitors then the extra 980ti would be a mush have for smooth frame rates, especially at 120Hz refresh rates

 
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Doggie314

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Thankyou darkbreeze. your latest response has uncannily anticipated what i was going to post next!

I am going to use the first GPU ( as listed) to run a Phillips BDM4065UC (4k 40inch) monitor.
I thought perhaps the card will not be strong enough to run the second BDM4065UC monitor ( 40 inch 4k) that i would like to run at the same time.
I know my friend can run his no problem with a Radeon R9 290 4GB card.When he adds two 24 inch 1080 monitors it begins to wobble a bit( some pixellation), but generally holds it all together. This was tested using the video in the following link at the maximum p offered on the video
https://www.youtube.com/watch?v=iNJdPyoqt8U


As such, with the Zotac card, which is 6gb, i wonder if its enough to fulfill the need of two of these screens.
I need two as i need the real estate for my job and want good media capability for off work times! i did try an NVS510 but the media playback was just terrible!!!!


 
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Doggie314

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Hello Ryan_78.
I am not a gamer as such and so far 60hz and fps is fine for me. The most i would ever play in games would be stuff like Neverwinter nights and Baldurs Gate and other older school stuff! I Hope that helps in explaining my requirements !
 
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Doggie314

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It also occurs to me that a scond(edit GPU)!!!! might not have to be as good /pricey as the Zotac?
I am loving thisa help. Im really out on a limb as this is all new territory for me, but love adventuring
 
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Doggie314

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Right! i have found quite a few gold 850w certified PSu at around 100 to 130 British Pounds. Thankyou all so much!
Do you chaps have any more feedback on the second GPU? any help will bring me on leasps and bounds and get me up and running so much faster than alone on my tiny island!
 
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Ryan_78

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ok so as for the second GPU, you will be needing it for 2 4k monitors, and it is optimal that you select the same model, but it will still work with a different model. the Zotac AMP! is a great card and adding a second one will just be delightful
 
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Doggie314

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Thaks again for another speedy reply Ryan_78.
My budget just took a big hit. I was going to go with one in the build and then add another if the single could not cope. However, it IS good to know the budget before the build starts, and have all the necessary components ready and waiting to be fitted! Did I mention that i would plug one screen into one and then the other screen into the other ( though dp with the screens set to DP1.2, ( which is necessary to do if i want 60hz)
 
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Doggie314

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One for each screen rather than doing SLI or crossfire. ( i dont actually really undertand that route and the concepts behind those two terms yet, but from my initial reading on the subject it seems that such a joined setup would reqquire alot of fettling etc. I would rather go for a trouble free solution!!!!!
 
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Doggie314

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weeping but holding the statement below in my head to get through the pain! thanks for the delightful bit Ryan_71


"the Zotac AMP! is a great card and adding a second one will just be delightful"
 
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Doggie314

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Ok i picked the 850 w gold std PSU as the solution as its the one you both agreed upon. There is not a green soluition box for the expanded issue of single or twin GPU but i am really aprreciating all the advice guys!
!
!!
 
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Doggie314

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Now that it has been established that i had best run two GPU from an 850W Psu, is there any knock on effect on the other aspects/ components i mentioned in post one that i should be aware of? ie more cooling or... ( anything i have no concept of yet?)

 
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Doggie314

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HI again. At the risk of over complicating the issue when it is so close to being solved, now that i know i need two 980ti, is it worth buying one Titan x? Or will the best config be to go with the two as Ryan_71 has already stated. I notice the Titan X has the same amount of gig as two 980Ti, but i suspect it is not that simple and there are other aspects where two 980 will out perform one Titan.?
TyTY and sorry if im starting to "flog a dead Horse"
 
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Darkbreeze

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Is gaming or work going to be the primary use of this system? If it's gaming, then even two 980TIs isn't going to be enough for two 4k monitors if you expect very high or ultra settings. Maybe not even high settings if the game is demanding enough.

If it's work, entertainment (HD video, youtube) or mainstream usage then even a single 980TI would probably be fine.

Titan is actually a workstation card, not a gaming card, technically, and is in reality not much, if any better than a 980TI. 4k doesn't really get any benefit after the 6GB on the 980TI anyhow, so that other 12GB, on current software, is likely wasted for gaming. For work, high end CAD, other similar 3D applications, it might be helpful, but that's not guaranteed. Depends on whether you're currently maxing out VRAM usage on what you're doing.
 
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Doggie314

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Hi darkbreeze. I have just download a vram monitor and hitting my system with a load of different programs and monitoring it all. Will report back very shortly in answer to your post.
 
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Ryan_78

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he says he's not much of a gamer, but he still plays old games.
anyways with 2 4k monitors one 980ti might hold like meh. the titan x can hold itself out pretty well with the extra vram
if its work, then yea sure one will do, but for something slightly more demanding, maybe not a game or something, it will be better with 2.
and I agree what are your priorities with this build? it seems like rendering or editing. if its just work any old pc and hold itself out
if its rendering the titan x will be just as good
SLI means 2 combines NVidia and Corssfire means 2 AMD cards. basically the same thing. if you run the cards without that, video performance will differ from each screen and only one screen will run only one 980ti power. if you sli them by adding one at a time and going into NVidia control panel it will maximize performance generally. and yes on 2 4k 2 980ti may not even handle it for gaming.
 
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Doggie314

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Hi darkbreeze, i have completed that video card intensive test.


Currently i am using my friends system with the two 24 inch 1080 screens and a 4k BDM4065UC monitor. The other system specs are as follows.
CPU : AMD FX8320 EIGHT CORE PROCESSOR 3.50 gHZ
RAM : 32GB
O/S : WIN 7 PRO 64 BIT
GPU:Radeon R9 290 4 GB.
I will be using the rig for my main occupation, which is currency and commodity trading intraday, thoughout the day. I have an application which I have to use to display 18 or more charts simultaneously. I will also have Skype and GTalk / Hangouts open for live commentary, which I share with traders who follow my instruction, as well as lots of different browsers detailing news events etc.
In my down time ( often every ten minutes or so in every 25 minutes, I will be wanting to view high resolution (4k etc) media either from YouTube, or a DVD drive, or through my Media Centre TV card ( possibly recording programmes at any point also.) I also will use the rig for my own Midi Cubase work and that might be running at the same time.

For the test I just ran , i opened
(1) vlcmedia player running a DVD.
(2) Google Earth Pro
(3) a You Tube video of 4k at 2180p spread across the whole 40inch BDM4065UC 4k Screen. ( this ultimately failed with error.
(4) Windows Media Player running live television.( displayed on top of (3)
(5) Spybot SD running a whole pc scan. ( on one of the 1080 screens)
(6) several browser tabs ( displayed on one of the 1080 screens)
(7) Skype and was sharing screens with a friend who was guiding me through the test and talking at the same time
(8) 20 charts on my trading application ( although there is no live feed at the moment as the markets are closed.) ( on 4k below {3} )
(9) Xmind ( a mind mapping program) ( on 1080 screen)

Results (using GPU-Z) : Memory Usage (dedicated) : Highest usage : 2317MB
Memory Usage (Dynamic) : Highest usage :279 MB
As i added applications, mouse movement and responsiveness did begin to slow considerably.

Hope this gives you an idea of future VRAM usage, (although based on this older system i am borrowing


 
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