ABSOLUTE ULTIMATE AV
HDMI CABLES WHICH PROPERLY AND RELIABLY SUPPORT 48 GBPS & HDMI 2.1
HDMI version 2.0b, which is the pre-existing industry standard, requires 18 Gbps video bandwidth support.
HDMI version 2.1 is the new industry standard, and this requires 48 Gbps video bandwidth support.
The shorter length cables, as per with respect to the existing HDMI 2.0b cables, will benefit from official testing and certification (see HERE for details: https://www.hdmi.org/manufacturer/premiumcable/faq.aspx)
Consequently, when purchasing shorter length HDMI 2.0b cables you want to look out for the official certifcation stamp, namely THIS:
Due to the existance of the official testing and certification of the shorter length cables there is no need for me to carry out additional testing with respect to these cables, and so it is only regarding the cables that fall outside of this, namely the longer length cables, wherein testing is necessary. Because, for reasons unknown there is currently no such official testing and certification with respect to the longer length cables, which use ACTIVE as opposed to PASSIVE type cable technology.
Because of the absence of reliability regarding longer length HDMI cables which properly pass the 18 Gbps necessary to support and work with HDMI 2.0b video, I previously carried out a comprehensive evaluation and analysis of which cables do and which do not in reality actually do so; which you can find HERE: TEST REPORTS | HDMI CABLES WHICH PROPERLY AND RELIABLY SUPPORT 18GBPS & HDMI 2.0b
Now that HDMI 2.1 is here, and because as per previously the expectation is that similarly the official testing and certification will apply only to the shorter length cables, it is time to focus on which HDMI cables that both offer longer length cables and claim to support 48 GBPS video bandwidth and HDMI 2.1, actually do so; and which do not.
Given the horrendous performance track record of longer length 18 Gbps HDMI v2.0b cables it will be interesting to see how many of the new longer length HDMI v2.1 cables actually deliver on their marketing claims.
As per previously, I will be compiling a list of cables that both offer longer length cables and claim to support 48 GBPS video bandwidth and HDMI 2.1, which I will subequently carry out an evaluation and testing exercise so as to confirm which cables in reality actually do and which do not. Please feel free to post cables that fit this criteria and I will add these to the list.
This thread is for discussing all HDMI v2.1 cables which properly and reliably support 48 Gbps & HDMI 2.1, not just the longer length cables. However, as far as which cables I will be including within my initial evaluation and testing exercise, for the reasons that I have already explained, this will be focusing on the longer length cables. If for whatever reason there is a subset of shorter length cables that fall outside of the official certification and testing, and as such also require testing then I will test these as well.