Hello Jack,
when asking similar questions you would usually have to start with your system specs. That first.
Second - Day-Z standalone is still in Beta version and it isn't representing the final product which... nobody yet know how is it going to behave on different systems.
The developers themselves said this:
“DayZ Early Access is your chance to experience DayZ as it evolves throughout its development process. Be aware that our Early Access offer is a representation of our core pillars, and the framework we have created around them. It is a work in progress and therefore contains a variety of bugs. We strongly advise you not to buy and play the game at this stage unless you clearly understand what Early Access means and are...