In terms of the A10-5800K performance to other integrated graphics processors and for the compute performance to other processors, as mentioned already, those results are still to be published in the coming days.
For those wanting a preview of the AMD A10-5800K processing performance under Ubuntu Linux, I have uploaded some early results from this system to OpenBenchmarking.org via the 1210015-RA-AMDA1058002 result file. From there, if you have the Phoronix Test Suite software installed on your Linux/BSD/OSX/Solaris system, it's simply a matter of running the command phoronix-test-suite benchmark 1210015-RA-AMDA1058002 to conduct a fully-automated side-by-side performance comparison of this Trinity APU to your own hardware/software configuration in a standardized manner using our leading testing framework. Just continue on here to otherwise see the individual results; some of the popular Linux metrics include building the Linux kernel in 194 seconds, C-Ray comes in at 90 seconds, x264 at 62 seconds, and Smallpt at 266 seconds.
Stay tuned for the remainder of the Linux testing of the AMD A10-5800K Trinity APU in the coming days on Phoronix. As it stands now, the A10-5800K with Radeon HD 7660D GPU is running well with Ubuntu 12.10 and no fundamental issues have yet to be uncovered. The performance is roughly comparable to that of an Intel Core i3 CPU, but the overclocking, performance-per-Watt metrics, and other data to be published show more revealing information for interested Linux-focused consumers.