One of the most exciting technologies to come Llano AMD desktop processors bring to the table is their support for Hybrid CrossFireX, but not all discrete graphics cards are compatible with all APUs, so in this article we will detail the dual-GPU setups are available for each A-Series chip.
Before starting, it should be noted that the Hybrid CrossFireX allows the system to use both the integrated Radeon HD core found in the Llano accelerated processing unit and a discrete GPU in order to improve the performance of PC graphics.
While this sounds simple in theory, the implementation of AMD's technology can be very confusing, because only certain combinations of APU-compatible GPU.
To make matters more complicated, dual graphics options available are also different depending on the type of system used, thus providing two tables AMD dual graphics configurations, one for desktop PCs and one for all-in-one machine.
To give an example of how complex the AMD Hybrid CrossFireX technology actually is, desktop computers are built using A4 Series APUs are only compatible with the Radeon HD 6350 (DDR3) and Radeon HD 6450 (GDDR5), while the AIO PC using the same APUs works with DDR3 only version of the Radeon HD 6350 and HD 6450, but also supports the Radeon HD 6550.
The same things confusing with the A6 and A8-Series APUs, and all this will be more complicated if you happen to see the names of the graphics generated combinations (an APU A8-series combined with the HD 6670 discrete GPU called HD 6730A2 in PC AIO and HD 6990D2 on the desktop).
All in all, I must say that although the support was introduced by AMD Hybrid CrossFireX on its chips Llano idea sounds good in theory, implementation found on desktop APUs are too confusing and should be simplified a lot in future iterations of the technology.
You can see for yourself on a combination of dual graphics supported by the desktop Llano APUs in the table provided by VR-Zone, but I doubt it would make much sense to each of you.
