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Re: Mac + eGPU

Posted: Wed Feb 24, 2016 6:42 pm
by cpinto20
Hey beppe,

Thats ok ahhah thanks for the info! I do however have my work computer with these specs

Macbook Pro (Retina, 15-inch, Mid 2014)
Processor 2.5 GHz Intel Core i7
Memory 16 GB 1600 MHz DDR3
Graphics Intel Iris Pro 1536 MB

So, as long as I have Mac compatible with thunderbolt 2 or 1 (ranging from 2011) It could work?
So my next question, would it be wiser to switch to a PC laptop with NVIDIA graphics card?
Thanks again this is a big help! Since I need a newer machine i'm debating if I should just get
a PC then, but will i still need a eGPU for the PC? Or are there PC's that can handle Octane
without eGPU?

again sorry... you guys have been a big help!

Re: Mac + eGPU

Posted: Thu Feb 25, 2016 5:08 am
by natemac00
cpinto20 wrote:Hey beppe,

Thats ok ahhah thanks for the info! I do however have my work computer with these specs

Macbook Pro (Retina, 15-inch, Mid 2014)
Processor 2.5 GHz Intel Core i7
Memory 16 GB 1600 MHz DDR3
Graphics Intel Iris Pro 1536 MB

So, as long as I have Mac compatible with thunderbolt 2 or 1 (ranging from 2011) It could work?
So my next question, would it be wiser to switch to a PC laptop with NVIDIA graphics card?
Thanks again this is a big help! Since I need a newer machine i'm debating if I should just get
a PC then, but will i still need a eGPU for the PC? Or are there PC's that can handle Octane
without eGPU?

again sorry... you guys have been a big help!
I'm using a 2014 MacBook Pro and a 2013 Mac Pro, both with benefit from the eGPU. What I also did was jam a PC with (2) more 980 Ti. I'm able to do network rendering with the PC even without the eGPU (not on the mac pro, those are all AMD cards inside). I was also able to get this to work from home where I VPNed into the office, not nearly as fast as being local, but it did work.

As far as the laptop goes, if you were going to go PC, I would find one with a 980m GPU inside(http://www.geforce.com/hardware/noteboo ... ifications) that GPU has 1536 CUDA Cores, that puts it almost equal to a GTX 970 card. Much more the 384 in the 750m in my MacBook Pro.

Re: Mac + eGPU

Posted: Thu Feb 25, 2016 9:36 am
by bepeg4d
Hi cpinto20,
great that you have a more recent Mac Book Pro, it's perfect for eGPU ;)
It largely depends by the personal usage, but my advice is to always prefer a system with a dedicated GPU for display only, so a Mac Book Pro with Thunderbolt eGPU is a very good solution, because the high res display sucks a lot of resources and you can use all the power an VRAM of the external GPUs.
Then you can add an pc box with GPUs and use it via octane net rendering in a second time ;)
ciao beppe

Re: Mac + eGPU

Posted: Wed Mar 02, 2016 4:53 pm
by natemac00
So I just wanted to share some numbers I just ran. I was reading on some other forms about an eGPU not performing to par.

GPU: MSI GTX 980 Ti 6GD5 V1 PCIE

Computer 1: Win 10 64-PC |3.2GHz 4-Core i5-6500 | 16GB DDR4 | Internal PCIe
Computer 2: '13 Mac Pro | 2.7GHz 12-Core Xeon E5 | 64GB DDR3 | 10.11.3 | eGPU
Computer 3: '09 Mac Pro | 2x 2.6GHz 4-Core Xeon | 24GB DDR3 | 10.11.3 | Internal PCIe

PC Average: 117.097 (117.18 | 116.61 | 117.50)
'13 Mac Average: 111.847 (116.15 | 111.30 | 108.09)
'09 Mac Average: 117.86 (118.62 | 117.62 | 117.34)

So if our PC is our baseline the eGPU is running at 96% efficiency. I think that's pretty negligible in performance.

Re: Mac + eGPU

Posted: Wed Apr 27, 2016 11:53 am
by prodviz
Hi all

I would like to test the feasibility of working with the Mac Pro (Maya) and Octane, as we're a mac based office.

I have a pc with Titan Black's at home (so I can use a few of these cards for testing) and I'm wanting to hook a couple up to a Mac Pro to test if the latest Nvidia drivers work with Maya/Mac/Octane.

What would be the best route to go down, for testing purposes?

Thanks very much.

Re: Mac + eGPU

Posted: Thu Apr 28, 2016 9:29 am
by glimpse
prodviz wrote: What would be the best route to go down, for testing purposes?
akitio might be the most simple solution for now =)
akitio.jpg
Using SFXL solution might be good Idea:
both.jpg

Having PCIe ribbon cable to displace GPU migh help as well to avoid case modification in the beginning
parts.jpg
unnamed (1).jpg
Here is how solution looks with back of the Akitio modiffied to allow accepting long cards =) works even with MacBookAir..
eGPU MacBookAit tomGlimps.jpg
Hope that helps =)

Re: Mac + eGPU

Posted: Thu Apr 28, 2016 11:57 am
by prodviz
That's brilliant info, thanks Tom.

I'm in the UK, so will see if I can get a similar set up delivered.

Thanks again.

Re: Mac + eGPU

Posted: Fri Apr 29, 2016 12:59 pm
by prodviz
I’ve contacted Akitio and they said that unfortunately, they cannot provide support for their PCIe to support GPU cards. They were very helpful, and suggested searching the TechInferno AKiTiO forums, but again, any modifications done to the box would void any warranty.

Re: Mac + eGPU

Posted: Fri Apr 29, 2016 1:17 pm
by natemac00
I've been using the Bizon Box 2 for about 3 months now with no issue.
If convenience out ways cost like it does for me I would recommend us .
https://bizon-tech.com/us/bizonbox2-egpu.html

Re: Mac + eGPU

Posted: Fri Apr 29, 2016 1:27 pm
by glimpse
bizon & akitio is basically the same unit..as far as I know. Reason why Akitio do not provide any guidance is because that requires human resources using time explain so on.. - there's tons of information in the google if You know how to search & that should not take too much time to figure thigns out =), but yeah.. if You seem rather to buy solution as is.. paying a bit more to get bizon might make sense..