When we compare the travel costs of real travelers between Dublin and Cork, we can see that Dublin is more expensive. And not only is Cork much less expensive, but it's actually a significantly cheaper destination. Therefore, traveling to Cork would allow you to spend less money overall. Or, you may decide to spend more money in Cork and be able to afford a more luxurious style of travel by staying in nicer hotels, eating at more expensive restaurants, going on excursions and experiencing more activities.
The same level of travel in Dublin would naturally cost you a lot more money, so you'll probably want to keep your budget a little tighter in Dublin than in Cork. There are two major third-level universities, the University College of Cork and the Cork Institute of Technology, which are highly regarded, as well as a variety of learning institutes and higher education centers.