let me jump back in this thread , do you prefer to run x32 or x64 ? 1st one is said to be faster (it is on windows at least)

I still run gnome-3.8 on debian x64 , it's seems to work but I was wondering if I should try or test something else ? ie sailfishos or some tablet distro ...

Note I am still looking for LENOVO_PART OKRBackup/Factory can you help ?