Which of these laptops should i buy? - 2

Looking for the best gaming performance for under $700
https://www.jbhifi.com.au/computers-tablets/laptops/dell/dell-inspiron-x510401au-15-6-notebook/546916/
https://www.jbhifi.com.au/computers-tablets/laptops/lenovo/lenovo-g50-45-15-6-amd-a6-laptop/630212/
so which of these and why, or any other recommendations would be apreciated