I’m sure a human driver wouldn’t be able to tell the difference.Just wait until HW69!!!
Seriously though, everyone keeps saying better. While HW4 is smaller, quicker, and cheaper than HW3, if Tesla is to be believed, it shouldn't affect FSD, EAP or any of the other programs that utilize it, otherwise they would figure out a way to upgrade it.
I doubt the people clamoring for it could tell the difference in a blind A/B test. But time will tell.
If you take Musk’s comments at face value, FSD with HW3 should be 10x better than a human driver when finished. But perhaps HW4 is 11x and HW5 is 12x… would anyone but an expert be able to tell them apart?