I am running the 8RDA and a 2500 Barton @2800. My barton has never seen 2500. Right out of the box, I clocked it to 2800 with some Corsair Value memory that runs rock stable at 333RSB. I have a 1700 but I think that for $91.00 you can get the 2500 barton to 3000 without too much trouble and a bit more effort that I put into it.
Good Luck.