Originally Posted by cydeweyz
Unless he can post a comparison video showing how much better the AppleTV 4k performs with 48GB cables over any certified premium 18GB cables?
He cannot, because quite simply it is not possible
. 4K 12-bit Dolby Vision (the most demanding that the ATV 4K will every supply) will NEVER need more than 18Gbps, so any (functioning!) 18Gbps-capable cable is just fine.
Now there are a lot of dodgy cables being sold that claim to be capable of 18Gbps and are not. It is possible he had one of those. In which case a new cable that IS capable of 18Gbps (and may or may not be capable of 48Gbps - there is no way of real life testing that right now before real 48Gbps sources arrive) may have been better for him
. However, a working 18Gbps cable is perfect for Dolby Vision, guaranteed!
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