Your cable needs to have adequate shielding to reject RFI/EMI (Radio Frequency & Electromagnetic Interference). The construction is important because it needs to be CL2 rated if it will be installed in-wall, because it complies with fire safety and insurance requirements. The gauge is the measurement of how large the individual cables are. You need an increasingly larger cable the longer it is. As for the spec., you want 2.0 if you are getting a 4K display at 60fps. Anything at 4K @ 30fps or below, 1.4 will suffice.
If you have a long distance run, say 30-60 feet, make sure the cable is 24 gauge and not the usual 28 gauge. Even with the larger cable you may still experience sparking because your source video signal or your TV's receiver isn't strong enough or if you have had to downscale to a lower video resolution. In that case, a signal amplifier may be needed. Contact us and we can recommend the right amplifier for your situation.