Check this article out on SBC vs non SBC from therootofallevo.com. It's very detailed and part 2 runs through some specific kernel comparisons. VERY interesting indeed.
Part 1
To SBC or Not to SBC... that is the question...
Part 2
To SBC or not to SBC...? That is the question...! (Part 2)
Part 1
To SBC or Not to SBC... that is the question...
Part 2
To SBC or not to SBC...? That is the question...! (Part 2)