Rocketman:For the majority of games, you don't really need to be worrying about this. Your comp more than meets the requirements for the two emulators. But, there are exceptions. I use PJ64 for my emulating most of the time, because it's alot easier to configure, and is much more stable than 1964. But if a game ever goes too slow on PJ64, chances are it will work better on 1964. [IE Goldeneye, Perfect Dark, which perform slowly on PJ64, even on my machine. They both do full speed on 1964.] But, there are differences. AFAIK, PJ64 has the RSP emulated closer to perfectly than any other emulator, which helps compatibility. 1964, as has been stated, is much faster. Those are two main differences.
Also, I think it's very unfair to say that an emu is 'better' than another one. Think about it. The programmers of these emulators donate months [In most cases years] of their lives to making an emulator, so that we can use them for our own enjoyment. I it really fair to say 'Don't use PJ64, 1964 is WAY better'. What you are basically doing is saying that the author's work of art is out of date, and nobody should use it. That's a huge slap in the face to an author. And let's face it, most of us just want to play free 64 games anyway. I used to be like that when I was a newbie, many months ago, but now, I just like to watch emulators progress, as well as playing games once in a while. Since we haven't really done anything to help the scene (Coding an emu) we don't have a right to say an emulator 'sucks'. Rant=over.