to a report over at Xbitlabs.com, AMD is preparing two more A-Series Llano APUs, the A8-3870K and the A6-3670K. As you might have noticed, the "K" letter in the model name will be used to differentiate these "unlocked" models from the rest of the batch.
This time around, AMD decided to scrap the "Black Edition" label and go simply for the letter "K". Spec wise, the A8-3870K and the A6-3670K are 100MHz faster than the A8-3850 and the A6-3650 and feature unlocked multiplier.
The quad-core A8-3870K is clocked at 3.0GHz with yet unnamed Radeon graphics with 400 stream processors clocked at 600MHz. The slower, and thus definitely cheaper, quad-core A6-3670K will tick at 2.7GHz while the GPU part will have 320 stream processors and will be clocked at 444MHz.
Both APUs will have 4MB of L2 cache, same 100W TDP and support for DDR3-1866 memory. According to the schedule these two should be announced sometime in Q4 2011.