Made this back in October, I believe (two-way model; sorry Libertarians). Admittedly, I thought the white share of the vote for Obama was going to be a bit better than it turned out, or else I'd have included an additional scenario. It looks to have been around 78-79% in Georgia. The closest match to 2012 is now marked.
Also, I posted this a few days ago in another topic. I haven't been able to find voting results by race yet, but I'm willing to guess based on my graphic below that:
The electorate was approximately 62% white Actual: (61.4%)
Whites voted for Romney 79/20%
Non-whites voted for Obama 91/9%