Benchmarking 2 Dual Cores vs. 1 Quad Core

Has anyone benchmarked and compared the performance differences between similarly specd' dual-cores again 1 quad core?

Would be an interesting test for Tom's Hardware to review.

What would be the positives and negatives for going with a two dual-core setup versus a single quad core (for scientific computing)?

This thread discusses your question and might help:

http://forums.bit-tech.net/showthread.php?t=124881

Looplocal, now you're linking me to another place that was completely out of subject. I was asking a dual socket 775 not 771. They are different. Even 747 and 777 are different.

So, are there any dual sockets 775 mainboard exists ? If yes, then the bench will be doable.