I don't really understand the title...
"Why do we keep here different account stories about Wii u hardware power."
do you mean, Why do we keep hearing different stories about wiiU's hardware power?
And based on what you quoted, the all seem pretty much the same...
PC Specs: CPU: 7800X3D || GPU: Strix 4090 || RAM: 32GB DDR5 6000 || Main SSD: WD 2TB SN850