I just pencilmodded my new Sapphire HD3850 256mb using the HD4850 pencilmod.
The newer cards, or at least a few I've seen have the uP6201BQ chip.



2 light pencil strokes and I've gone from 1.37 to 1.42v. Only 931mhz on water? RV670 cards suck compared to R600 lol!