Yes, it should run just fine. I ran a Duo Core on an off the shelf stock laptop as well, with Vista as the OS, and an external focusrite interface. Everything ran fine and at the same time.

And I have NI on it... Komplete 6 was the version.

Note that when running Sonar on the laptop I was able to really load that processor down when I had the right plugs installed and loaded.... Melodyne, Ozone, and a few others.... I could get the CPU meter up into the 70%+ range easily. That did cause a few issues on occasion. Freezing the tracks often solved the CPU crunch. My current i5 Intel machine barely goes over 25% under a full load. I think the i3 should be a fine processor.

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.