It doesn't matter you use a domain name or ip adress, it always open the same page.
But if you want to open an website with the ip address displayed on the address bar you must open the link with ip address.
For example, both of these links below open the same page and you can spit out the differences by looking at the address bar.
Open these links in new tab, and you will understand by your self.
link with ip address
link with domain