Which external graphic card would you advise?

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twc
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Mon Mar 27, 2017 10:30 pm

Hello again,

I'm using this on a 5k iMac but have tested it on a 2012 air, 2012 iMac, and some other bits. All works fine.

Note: it does not power any display. It simply provides cuda acceleration. That's all I needed. This method is different to the standard automate-egpu instructions, but it simpler.

A Node is an akitio node.

Ps egpu.io is windows and Mac (the windows section is beneath the Mac one)

Cheers

Ps I figured out how to fit the hybrid cooler into the node case properly! Result!
syntaxed2
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Tue Mar 28, 2017 3:40 am

Just get PCIE extenders...4x to 16x and use the mini pcie(the slots between the 16x fullsize slots) on your board.

PCIE bandwidth of the mini 4x doesnt impact render speed, its only of relevance for scene translation but its marginal.

You can check octane forums or any bitfolding community, they been using extenders and 4x slots for years.
Tom Hobbes
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Tue Mar 28, 2017 10:29 am

Thank you for all the links and information. All current machines have violent disadvantages. After reading that much: The new Akitio Node will come on 24 of April. It will have T3, is big enough and has much more power supply. For my mid 2016 MacBookPro I will need a Thunderbolt adapter which should work in both directions: T2>T3 and T3>T2. Hopefully there will be nothing more to tinker. Then I will look for a PCI card.
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Rombout
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Tue Mar 28, 2017 7:34 pm

Tom Hobbes wrote:Thank you for all the links and information. All current machines have violent disadvantages. After reading that much: The new Akitio Node will come on 24 of April. It will have T3, is big enough and has much more power supply. For my mid 2016 MacBookPro I will need a Thunderbolt adapter which should work in both directions: T2>T3 and T3>T2. Hopefully there will be nothing more to tinker. Then I will look for a PCI card.
Your macbook pro has TB3 and the current Akitio Node also has TB3
Tom Hobbes
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Wed Mar 29, 2017 7:05 pm

Unfortunately not. I bought it in the summer 2016, but it had been produced in 2015. I do not like to know why. So I have T2, as I learned now. But I hope to this one: https://www.akitio.com/expansion/node
twc
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Wed Mar 29, 2017 7:07 pm

Get the Apple TB2 -> TB3 adapter and the Apple TB cable. You'll be fine.
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Rombout
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Thu Mar 30, 2017 5:48 am

TWC do you have info or better info about running it with TB2 on internal display? There seem to be some issues when doing it this way.
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Javadevil
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Sun Apr 02, 2017 5:56 am

Do any of these manufacturers support more than one GPU ? Having a node with 2 or 3 GPUs would be sweet.
I was thinking about getting one of the new DELL 27 all in one units but I think they only come with a AMD card. I have heard people running 2 sets of drivers one nvidia and the other AMD but requires a lot of messing around.
http://www.dell.com/en-us/shop/productd ... 7-7760-aio
twc
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Tue Apr 04, 2017 1:35 pm

Rombout: You do not need to power the internal display from the eGPU if you just need CUDA. If, however, you want to boost games, you do need to power the internal (or an external) display. This incurs a significant performance loss (although you're still way better off than any stock Mac GPU). I know little more about that arrangement as I simply wanted CUDA.

Javadevil: Currently these cheaper TB enclosures only support one GPU. I may be wrong in saying this but I believe the only options that support multiple GPUs are PCI-e based expansion systems that cost 10x the price of a Node (Google Magma expansion)
Panoptical
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Tue Apr 18, 2017 3:10 pm

Tom: Did you get the Akitio Node and GPU? If so how did it go?
I've looking to do the same thing, a bit concerned there could be a lot of tinkering involved. Curious to hear about performance of the GPU rendering in MacOS. I've heard there can be serious performance drop off with MacOS compared to windows and some people are using bootcamp for better render times.

I've also looked at the BizonBox3 which promises to be fully plug and play but looks like about a $500 markup for that privilege.

TWC: Are you running MacOS? Would you mind sharing more about your set up?
Also- This stuff is all new to me but, is Pascal now supported as the Nvidia has released the drivers?

Thanks
R
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