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Difference: USB3.1 over TB3 vs native USB3.1


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#1 mindnoise

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Posted 22 July 2018 - 04:06 AM

Hello everybody,

I have a tricky question (hopefully not).

As far as I understand it TB3 handles USB3.1 as subset of it's protocoll.

So, does that mean that USB3.1 does not rely on the CPU and is handled by the TB3 chip or does the TB3 chip just pass the data through to the CPU.

vs. 'native' USB3.1 that is definitely handled by the CPU?
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#2 Tesseract

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Posted 28 July 2018 - 07:20 AM

Weeeeellllll… it's complicated. The CPU will always be involved to some extent, and it depends somewhat on what each device does. But the short answer is that yes, a Thunderbolt 3 controller has a USB 3.1 controller built in.

#3 mindnoise

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Posted 02 August 2018 - 07:12 PM

Thanks, :happy:
hey, don´t worry - it´s only red pixels on your hands...

8 - iPhone SE, 16GB
7- iPad Pro 12.9", WiFi 128GB
6- MacMini 7,1: i5@2.6GHZ, 8GB, Intel Iris (5100)
5- iPad Air, 16Gb
4- MacBook Pro 8,1:  i5@2.3GHz, intel HD3000, 8GB RAM
3- iPad 2, 16GB
2- iPod Touch 4G, 8GB
1- MacBook 1,1, 1,83GHz, intel GMA950, 2GB RAM
-> The (nearly) ultimate intel HD 3000 gaming performance sheet <-