wondering the requirements for the updated league of legends

im planning on getting a new computer in the budget of €250. there are quite a few.nothing too fancy.just looking for 30-60fps on low to medium

ill post the links.the processors are pentium j or i3.i think these could run it.just need your opinion

http://www.currys.co.uk/gbuk/computing/desktop-pcs/desktop-pcs/advent-dt4103-barebones-desktop-pc-21850439-pdt.html#cat-0

http://www.currys.co.uk/gbuk/computing/desktop-pcs/desktop-pcs/lenovo-h500s-desktop-pc-10010869-pdt.html#cat-0

http://www.currys.co.uk/gbuk/computing/desktop-pcs/desktop-pcs/lenovo-h500s-desktop-pc-10025047-pdt.html#cat-0

http://www.currys.co.uk/gbuk/computing/desktop-pcs/desktop-pcs/lenovo-h520e-desktop-pc-10011086-pdt.html#cat-0

is pentium j enough?

Id like some opinions and hard facts.thanks for your time^^