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How far are we from GPUs with USB-C and what will be the impacts?  

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timothyov
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April 8, 2019 5:17 pm  

I've heard that this is completely going to change things, is that true?

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chinsteig
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April 8, 2019 9:30 pm  

There are already cards with USB-C

https://www.amazon.com/NVIDIA-GEFORCE-RTX-2080-Founders/dp/B07HWMDDMK
https://www.nvidia.com/en-in/geforce/graphics-cards/rtx-2080-ti/

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timothyov
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April 8, 2019 10:43 pm  

I know that a few exist but I mean from it becoming actually common and not just on one card.

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OliverB
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April 8, 2019 10:49 pm  

It doesn't have hardly an impact, why should it have one?

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timothyov
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April 8, 2019 10:51 pm  
Posted by: OliverB

It doesn't have hardly an impact, why should it have one?

I don't think this is correct. I heard rumors that it supports almost 8k, among other things. Also: power delivery. 

This post was modified 2 weeks ago

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Eightarmedpet
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Cardfire
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April 10, 2019 5:03 pm  

You're wanting USB-C port for a GPU *output* to an 8K display *input* right?

Pardon the silly question, but 90% of the time when someone says "USB" and "eGPU" in the same post it means ... the other thing. The impossible thing. 🙂

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timothyov
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April 10, 2019 5:26 pm  
Posted by: Eightarmedpet

I'm still waiting for a card with TB3... 2 years now.

Any particular reason why?

You're wanting USB-C port for a GPU *output* to an 8K display *input* right?

Pardon the silly question, but 90% of the time when someone says "USB" and "eGPU" in the same post it means ... the other thing. The impossible thing. 🙂

 

I'm actually wondering how it will change affect / change eGPU boxes and what the benefits will be.

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joevt
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April 14, 2019 1:16 pm  
Posted by: timothyov
Posted by: OliverB

It doesn't have hardly an impact, why should it have one?

I don't think this is correct. I heard rumors that it supports almost 8k, among other things. Also: power delivery. 

8K comes from DisplayPort 1.4 with Display Stream Compression (DSC). That's not new with USB-C.

Power Delivery is part of the USB spec. The power will come from the PCIe slot or PCIe power connectors. The USB port and USB device will negotiate how much power to use so your computer won't blow up.

The graphics card has a USB 3.1 gen 2 controller. It's just another PCIe device like the audio controller that is also on the graphics card. The USB controller taking 10 Gbps from a PCIe 3.0 x16 slot (126 Gbps) is not a problem. It might have an impact in a Thunderbolt 3 enclosure (22 Gbps) but only if you're writing a lot of data to a USB-C device.

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timothyov
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April 17, 2019 7:37 pm  
Posted by: joevt
Posted by: timothyov
Posted by: OliverB

It doesn't have hardly an impact, why should it have one?

I don't think this is correct. I heard rumors that it supports almost 8k, among other things. Also: power delivery. 

8K comes from DisplayPort 1.4 with Display Stream Compression (DSC). That's not new with USB-C.

Power Delivery is part of the USB spec. The power will come from the PCIe slot or PCIe power connectors. The USB port and USB device will negotiate how much power to use so your computer won't blow up.

The graphics card has a USB 3.1 gen 2 controller. It's just another PCIe device like the audio controller that is also on the graphics card. The USB controller taking 10 Gbps from a PCIe 3.0 x16 slot (126 Gbps) is not a problem. It might have an impact in a Thunderbolt 3 enclosure (22 Gbps) but only if you're writing a lot of data to a USB-C device.

Then what's the point of cards that provide USB-C? Why are so many people saying that it's going to be revolutionary and why did the user above say he's been waiting for it for years?

Just trying to get some answers here.

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OliverB
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April 17, 2019 8:39 pm  
Posted by: timothyov

Then what's the point of cards that provide USB-C? Why are so many people saying that it's going to be revolutionary and why did the user above say he's been waiting for it for years?

I haven't heard that before. There is nothing revolutionary about it.

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theitsage
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April 17, 2019 10:08 pm  

@timothyov Don't get confused between USB-C and Thunderbolt 3 port. No PCIe graphics card has a Thunderbolt 3 port. Some RTX series graphics cards have a USB-C port. VirtualLink VR Headsets is the intended use for this port but it can be used for many different scenarios. The significant of this port is that it can be both a monitor output and data input connection. For example when you have a single I/O eGPU enclosure, you can connect a USB-C hub to the USB-C port of the graphics card all the while connecting the monitor through DisplayPort. If you use a USB-C portable monitor, you only need a USB-C cable to provide power and monitor output.

Best ultrabooks for eGPU use

eGPU enclosure buying guide

94 external GPU build guides


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