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Anders P. A.

macrumors newbie
Original poster
Jul 9, 2015
21
1
Denmark
What video card do you have in the BizonBox? Check with it's specs and tell the thread what it supports!

Well, I don't have one yet, but I was planning on getting the Nvidia 1080.

The reason I'm asking is that I asked Bizon support - just to make sure before my purchace. They gave me this reply... "The LG 5K screens only has Thunderbolt input, so there is no way to use it with the BizonBOX."

I see thunderbolt 3 connectors on the back of the Bizon box, and they also claim full support of the new Macbook Pros, so I was a bit surprised about this.

As far as I can tell the egpu will excellerate things on the laptop display which isn't connected directely to the egpu graphics card either, so that doesn't explain the 5K LG display wouldn't benefit from the egpu. It could be connected to another port on the Macbook Pro or the back of the egpu box. If there are graphics cards out there with Thunderbolt 3 connections then the LG 5K display could be connected directly to it. Then wouldn't it work?
 

gwang73

macrumors 68000
Jun 14, 2009
1,780
1,216
California
The 5k LG monitor uses DisplayPort MST to drive the monitor, which is supported on the MBP on a single cable. However, when you use the eGPU, the GPU card drives the external monitor, which is standard DisplayPort. The TB3 ports are used to extend the PCIe interface from the MBP to the eGPU. It's designed to communicate with the eGPU or daisy-chained eGPU's. it's not designed to drive a monitor.
The only way it would work is if the LG 5k supports dual DisplayPort inputs from the GPU.
 

Anders P. A.

macrumors newbie
Original poster
Jul 9, 2015
21
1
Denmark
Thank you. I have much better understanding how this works now.

Are there really no graphics cards for the eGPU that support DisplayPort MST (coming?) - or is it just an Apple thing?
 

gwang73

macrumors 68000
Jun 14, 2009
1,780
1,216
California
I don't know as I haven't done a lot of research on it. It seems to me that DP MST is a temporary interface until DP 1.3 comes out and the GPU's will support that instead.
I am also interested in buying the Bizon 3 box to drive the LG. 38" 21:9 monitor for gaming.
 

Anders P. A.

macrumors newbie
Original poster
Jul 9, 2015
21
1
Denmark
I do 3D visuals. I am a bit afraid that the 460 will not be able to drive the LG 5K smoothly during modelling.

Even if the bizon can't drive the 5K, I could still use it for GPU rendering. So it's mainly the monitor I am i doubt about, but I guess I could sell it again in january, when the price goes up again.
 

gwang73

macrumors 68000
Jun 14, 2009
1,780
1,216
California
That should be possible. One USB-C port from the MBP to the monitor and the other connected to the Bizon box for renderer processing.
I hope LG releases a 5k display that is not apple specific.
 

3587

macrumors 6502a
Mar 23, 2008
747
87
So, the yet to be released BizonBOX 3 won't work with the '16 MBP and LG's 5K? What about any other eGPU's? I was really banking on this working.
 

MrX8503

macrumors 68020
Sep 19, 2010
2,287
1,600
Currently there's no device that has been confirmed to work with LG's 5K display other than the 2016 MBPs.

What you need is a GPU with TB3 and DisplayPort 1.2 MST.

Once DisplayPort 1.3 is mainstream, it should simplify compatibility, but that's still a long ways off.
 

3587

macrumors 6502a
Mar 23, 2008
747
87
Yeah, I confirmed with BizonBOX that the LG 5K will not work with ANY graphics cards provided by them... Or any graphics card company at this time. Looks like I may have to keep my LG 38UC99 for this to work.

Waiting to hear how this BizonBOX will work with macOS and the 38UC99.
 
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