I'm buying a new computer and the two main games are DayZ and Minecraft which computer is better?

If you want to be a casual go back to COD stop pretending that you use PCs

The better choice on that list for a gaming machine is the Advent model from pc world as it has the stronger graphics card, however it is not the best Gaming pc on there and only just exceeds the minimum requirement in graphics horse power for DayZ…

The advent is better but the system specs are ridiculous. It gives you an i7 but a really weak gpu. For minecraft it'll be fine but for dayz itll run pretty badly(then again Dayz runs slow on any computer)

Neither are particularly Good and having an i7 with a low end card or intel graphics is useless.
i would pick neither if you post a Budget i can find you one that will play those games.

If gaming is your only concern, go with the second rig (AMD chipset).