Alongside the A10-7700K, the A10-7850K is a recent addition to AMD's A-Series line of APUs and uses the existing FM2+ socket. By using the new 28nm manufacturing process, these new APUs are able to run faster than the previous generation, even when running at a lower clock frequency. In addition, improvements in the graphical portion of the APU increases the capabilities of the integrated R7 graphics controller. Interestingly, the clock speed of these new APUs are actually lower than the models they are replacing
SOURCEOverall, the AMD A10-7850K is a great improvement over the previous generation APUs in AMD's A-series line. Especially in terms of gaming performance when using the integrated graphics, it is about 10% faster than the previous generation APUs. If you compare the gaming performance to an Intel CPU, the graphical capability is so much better that it really is not even in the same league.
In terms of CPU performance, the A10-7850K is overall an improvement over the A10-6800K. Especially in PCMark 08, the A10-7850K was about 10% faster than the A10-6800K. Our GeekBench benchmark indicated lower single-core performance, but as more and more programs use multi-core technology, that is really not even much of an issue.
However, there are a few issues we have with the A-series line in general. First, while the gaming performance is better than Intel, it is only better if you are using integrated graphics. As soon as you add a discrete video card, an equivalently priced Intel-based system is going to give you overall better performance in most games. And while the gaming performance is very good for integrated graphics, if you consider yourself even a moderate gamer you likely would want to invest in a discrete video card.
Similarly, if you are mainly concerned about performance in programs that do not use the GPU, an Intel-based system is going to give you much better performance for your dollar. Finally, in terms of future upgrade potential, the A-series APUs hit a wall much, much sooner than their Intel equivalents. The A10-7850K is the fastest A-series APU currently available, yet the CPU performance is much lower than even the Intel Core i5-4440 which is only a mid-range Intel CPU.