Ok so I am thinking of getting a tablet(my first one!) and I am not sure of what should I pick up...

I came up with these two "brother" tablets which are slightly different and I don't know which one to pick up!

What I want to do with them:

• surf the web/maybe some videocalls and chatting too(not that much)
• dual boot(if possible) and try to do mods myself(and learn more things like this )
• play games(maybe I will use it for trying some games I will try to make myself)
• maybe do some painting/sketching

These are all I can think!
Actually I don't care that much about the size!
What bothers me is that the 8" one has an ARM processor and the 10" one has an x86 processor.... How can this affect the speed of the tablet?? Also I searched a little for having linux or even windows(they are not open sourced, I know) on the 10", because I thought it could be cool to have an x86 processor on a portable device and run these operating systems on this!

What do you guys think I should get?
Thanks in advance

P.S: I am talking only for the WiFi version of both of these!