These chips are both dual core, and both 3.0 GHz. The only real differences I can see are that the 930 has more L2 Cache, and that they use different cores. The 830 uses the 90 nm Smithfield, while the 930 uses the 65 nm Presler.
I'm seeing a lot of people talking about heat issues with the 65 nm Presler, there's not so much heat issue discussion with the 90 nm Smithfiled.
What I'm wondering is if the the 830 90 nm Smithfiled may be the better buy. I think I'd rather have a cool running 830 than a hot running 930. Heat increases resistance, and resistance slows speed. So may it'd be best to go with the 830 90 nm Smithfield.
I'm curious as to what other have to say about this, comments are invited.
The 930 is supposed to be cooler than the 830.
No matter how you slice it, it's just a question of a decent hsf.
You would probably be better off going to one of Amd's offerings, depending on your software usage.