I don't know from experience, (as I am still enrolled in an undergraduate program) but I would guess that it matters to some extent. For me, under the education section of my resume, it includes my current GPA. That being said, the higher the better. If you have a high GPA, people will probably have think better of you without meeting you versus someone who has a low GPA. It kind of suggests that you contain certain qualities such as, being diligent, commitment, etc. And even for yourself, striving to maintain a high GPA will help you learn how to manage your time and take work seriously. (For the most part)
I don't think it really matters as much as people think to be honest. Currently I have a 4.0 but that won't lead to getting me a job. My soft skills/programming skills/ experience together will land me a job when I get out from my undergrad. If it came down to 2 people who were identical, and the chances of that are very slim, then I could see it coming down to GPA, but other than that, it's going to come down to your experience.
If it's above 3.5, then yes. "Graduated Magna Cum Laude" will look good on your resume no matter how old you are, though like others have said, it will matter less and less as you get older and more experienced. If your GPA is not so impressive, then just dont mention it. A good GPA can help you, but a bad GPA wont hurt you. If a company doesnt hire you based on a subpar GPA, then you probably wouldnt want to work there anyway.
For your first job/internship, yes. Once you get some experience, that value begins to outweigh the importance of a GPA. For grad school, you need a respectable GPA (2.x is just not going to cut it in most cases), but more importantly you need to have research experience.
Edit: I see your edit about graduate school. GPA is a good way to get an edge - there's no reason to blow it off if it will make you look better than your competition. That said, I have friends with lackluster GPAs but who are good at what they do - in that case a portfolio says more than a GPA.
This post has been edited by xclite: 07 July 2009 - 07:56 AM