Which external graphic card would you advise?

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Tom Hobbes
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Fri Mar 24, 2017 6:44 am

Hi,

I would like to add an external graphic card with an Akitio Thunderbolt2 PCIe Expansion Box to my MacBookPro. Of course it should be Nvidia but which one. Not too loud not too expensive. May be it has not to be the latest an biggest one. I need some more speed for testing an producing. As the expansion box will cost EUR 280,- for the card I thought about EUR 300,- may be more. What is with this one: Asus Dual-GTX1060-O6G Nvidia GeForce (PCIe 3.0, 6GB GDDR5, HDMI, DVI, Displayport?

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Anthony
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Fri Mar 24, 2017 7:39 am

Anything from Pascal generation really that you can afford. The problem with the AKITIO is the power supply on the cards. So you want something that is close to 150W envelope for stability on the card imho.

1060 is an ideal option for the price point mentioned.

On my main rig by the way I have EVGA ACX based card. Its dead silent and barely makes noise when rendering full blast.
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twc
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Sat Mar 25, 2017 10:29 pm

Pascal cards do not work in MacOS. The latest you can currently use is the Maxwell series.

Get the akitio node instead of the thunder 2 box as the node comes with a decent power supply.

Also note if you get a hybrid card (with water cooling) the case will not slide past the fan.

Also also note that if you only need cuda (no internal or external screen to power) use only the kext add in rather than the automate-eGPU script.
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gwengosch
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Sat Mar 25, 2017 11:45 pm

IS it possible to use this kind of thing to plug 3 or 4 gtx 1080? i mean on a PC with only 3 PCIE on the motherboard?
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twc
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Sat Mar 25, 2017 11:57 pm

Theoretically yes. You would need a box for each gpu unless you want to start modding stuff.

You'd also need to look into how your Thunderbolt ports are divided and whether or not that would affect performance.

Head over to egpu.io for more information

Thinking about it further, if you need three or four boxes you'd probably be better off with a Magma expansion chassis.
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Anthony
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Sun Mar 26, 2017 6:56 am

twc is absolutely right. Apologies I had forgotten that Pascal support is not currently available in Mac OS Sierra. Only up to Maxwell.

Thank you for the correction here twc.
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Sun Mar 26, 2017 9:35 am

This will be very expensive.
If i would like to buil my own render farm, i might be cheaper to buy a specific motherboard with a lots of pcie? does this exist?

Or a EGPU box with 2 or 3 gpu inside?
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Anthony
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Sun Mar 26, 2017 9:48 am

There are motherboards with 6-7 PCI Express slots such as ASUS Z10PE-D8 WS. If you go with a liquid cooled option you can turn a dual slot 1080Ti > single slot liquid cooled card and then use 7 x 1080Ti cards in a single workstation. And its got a dual Xeon socket but I would get approachable in price Xeons just to bring up the system.
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nigec
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Sun Mar 26, 2017 9:57 am

if you can shove that much into a workstation, why do Pixar still render CPU? and just denoise with GPU.. which is pretty good I may add
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Sun Mar 26, 2017 10:37 am

Anthony wrote:There are motherboards with 6-7 PCI Express slots such as ASUS Z10PE-D8 WS. If you go with a liquid cooled option you can turn a dual slot 1080Ti > single slot liquid cooled card and then use 7 x 1080Ti cards in a single workstation. And its got a dual Xeon socket but I would get approachable in price Xeons just to bring up the system.
Thanks for your answer

this is alos very expensive i guess.

I was looking for something like skype lake + 4 gtx 1080
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