Generally speaking if it doesn’t meet the minimum requirements it won’t go well.

You can get a general visual representation on a site I think is called canyourunit.com.  This isn’t an entirely reliable tool but it might offer some clarity.  

Skylines is very cpu intensive.  Especially in large or high asset areas.  A blank map might run, but as you add things it’ll get worse.

For 8 dollars though I’d probably buy it anyway.  Then at the very least it’s in your library and can be downloaded on any capable machine in the future.

Edit: the gpu alone is a concern...