Originally Posted by whityfrd
well if were talking manufacturing errors in cables then its just a defective cable. You cant count that as one being better than the other. Thats just one lemon cable vs. One good one. Im speaking from a technical standpoint on how the signal is transmitted. If the cable is faulty, thats a whole other category and im not debating that.
No, again, the cable's performance absolutely will differ. However, because the signal is digital, as long as the cable is good enough for the task at hand, then there won't be any difference in terms of the transmission of the signal per se, so there will not be any difference in the data as it is recovered. It either is recovered or it is not. (ignoring cable jitter which is not really an issue with HDMI).
But just as with any twisted pair data cabling, the design of the cable has very big impacts on the performance of the cabling. The differences between cat 5, cat 5e, and cat 6 can be significant, and indeed different manufacturers of TP cabling can do different things in order to improve the stability of the cable which can be crucial for long distance runs. You can get bonded-pair cat from Belden for instance, and it is godawfully more expensive than other cat designs, but the impedance stability of the cable is like no other because the pairs are bonded together. Do you need that kind of cabling performance? Maybe. For short distances or low bandwidth, then no it gets you no benefits at all.
But if you're going very far, and trying to push gig ethernet far, then pulling cheesy cat 5 is a recipe for failure.
The same is true with HDMI cables. There absolutely are differences in cabling performance beyond just a faulty construction altogether. But in terms of it having any impact on the image, there won't be any unless it simply fails for the task at hand. In other words, while what is going down the cable will differ between cables, whether it makes a difference is not a matter of degree, it is simply all or nothing.