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PSU for 3D Software GTX 690 and GTX Titan

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February 1, 2014 12:34:06 AM

Need advice for a power supply for this build:

i7 2600k
Asus P8Z77 V Deluxe
GTX 690
GTX Titan
Dell U3014 Monitor
32 G RAM

The software:

Windows 7
Autodesk Maya 2014
Autodesk 3DS Max 2014
V-Ray RT CPU/GPU accelerated

This is for animation and large scene stills. The 690 is for the display, the Titan for V-Ray renderer. At some point there will be an upgrade to a better Haswell CPU and mobo, and a Dell 4000K monitor.

Best solution

February 1, 2014 1:32:59 AM

Power consumption data for the 690: http://www.guru3d.com/articles_pages/geforce_gtx_690_re...
Power consumption data for the Titan: http://www.guru3d.com/articles_pages/geforce_gtx_titan_...

According to guru3d for the 690 you'd want a 750W PSU and for the Titan you'd want at least a 550W PSU. In sli (which doesn't apply to you exactly...I know) he recommends 950W in the 690 article and 800W in the Titan article as minimums.
Now I know you're not running in sli as these are 2 different cards but I think unless you find an article that specifically tests a setup like you are intending to make it wouldn't hurt to gauge by the recommendations made for sli as to what those requirements are; it's all about delivering as clean power as possible to your gpus for smooth voltages, stability, etc. I wouldn't mess around going to weak on the psu, you're already spending a pretty penny on those gpus so I'd look at 850W PSU's or higher to be on the safe side. I see no shame in getting a 1200W or the best available; when you're spending that kind of money what's $150 more for the best psu's. You're not building a budget rig anyways. I'm sure Why_Me has more than sufficient reasons for his recommendations but I think it's better to be future proofed as well and your psu is not the place to skimp. I have a Corsair AX1200; yeah that's overkill for most but I spent $250.00 and I am never worried about overtaxing my psu. Plus it looks gorgeous in my rig!

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Hope this helps!
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February 1, 2014 1:59:57 AM

Thank you. 1200W was what I was thinking also. The 30" 4000k monitor, if I get it, will need a lot of power as well, for sure.
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February 1, 2014 2:18:41 AM

jnewegger23 said:
Power consumption data for the 690: http://www.guru3d.com/articles_pages/geforce_gtx_690_re...
Power consumption data for the Titan: http://www.guru3d.com/articles_pages/geforce_gtx_titan_...

According to guru3d for the 690 you'd want a 750W PSU and for the Titan you'd want at least a 550W PSU. In sli (which doesn't apply to you exactly...I know) he recommends 950W in the 690 article and 800W in the Titan article as minimums.
Now I know you're not running in sli as these are 2 different cards but I think unless you find an article that specifically tests a setup like you are intending to make it wouldn't hurt to gauge by the recommendations made for sli as to what those requirements are; it's all about delivering as clean power as possible to your gpus for smooth voltages, stability, etc. I wouldn't mess around going to weak on the psu, you're already spending a pretty penny on those gpus so I'd look at 850W PSU's or higher to be on the safe side. I see no shame in getting a 1200W or the best available; when you're spending that kind of money what's $150 more for the best psu's. You're not building a budget rig anyways. I'm sure Why_Me has more than sufficient reasons for his recommendations but I think it's better to be future proofed as well and your psu is not the place to skimp. I have a Corsair AX1200; yeah that's overkill for most but I spent $250.00 and I am never worried about overtaxing my psu. Plus it looks gorgeous in my rig!

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Hope this helps!

Their using an X58 set up for that guru review which makes a big difference on the power draw. Nvidia recommends a 650w psu. A socket 1156 like the OP has draws a lot less power as does the socket 1150 which the OP plans on upgrading to.
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February 1, 2014 2:21:12 AM

shokan said:
Thank you. 1200W was what I was thinking also. The 30" 4000k monitor, if I get it, will need a lot of power as well, for sure.

1200W for a single 690 is crazy overkill imo unless you plan on adding another one of those cards and in that case you would need a board that supports two of them. That would be a board that runs two of those cards @ x16. There's only a few of those boards that do that, one of them being the Asus WS Revolution.
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February 1, 2014 1:20:40 PM

In fact, I may have two Titans (one for display, other for rendering) instead of the planned 690 plus Titan. I'm getting an Asus P8277 V Deluxe tomorrow. I better check on that card issue. Remember also, there's a 30" 4000 K monitor in my future as well. With my sketchy tech knowledge, 1200w doesn't seem like overkill.

edit: just checked at Asus.
2 x PCIe 3.0/2.0 x16 (x16 or dual x8) *3
1 x PCIe 2.0 x16 (x4 mode, black)
4 x PCIe 2.0 x1 *4

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February 1, 2014 2:28:26 PM

shokan said:
In fact, I may have two Titans (one for display, other for rendering) instead of the planned 690 plus Titan. I'm getting an Asus P8277 V Deluxe tomorrow. I better check on that card issue. Remember also, there's a 30" 4000 K monitor in my future as well. With my sketchy tech knowledge, 1200w doesn't seem like overkill.

edit: just checked at Asus.
2 x PCIe 3.0/2.0 x16 (x16 or dual x8) *3
1 x PCIe 2.0 x16 (x4 mode, black)
4 x PCIe 2.0 x1 *4



That board won't run two of those card...those cards are two downclocked 680's.

Here's two Asus boards on newegg that will two of them. The Gigabyte UD7, MSI big bang, and the Asrock Extreme9 will also run two of those card.

Here's the asus boards...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
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February 2, 2014 4:17:44 AM

Why_Me said:
shokan said:
In fact, I may have two Titans (one for display, other for rendering) instead of the planned 690 plus Titan. I'm getting an Asus P8277 V Deluxe tomorrow. I better check on that card issue. Remember also, there's a 30" 4000 K monitor in my future as well. With my sketchy tech knowledge, 1200w doesn't seem like overkill.

edit: just checked at Asus.
2 x PCIe 3.0/2.0 x16 (x16 or dual x8) *3
1 x PCIe 2.0 x16 (x4 mode, black)
4 x PCIe 2.0 x1 *4



That board won't run two of those card...those cards are two downclocked 680's.

Here's two Asus boards on newegg that will two of them. The Gigabyte UD7, MSI big bang, and the Asrock Extreme9 will also run two of those card.

Here's the asus boards...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...


Really good that I know that now. Thanks very much. What is it exactly in the specs of the two boards in your links that does enable them to run two GTX Titans (or a GTX 690 plus Titan)?

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