Advanced Micro Devices revealed some more information about its Fusion microprocessors that combine general purpose processing cores as well as graphics processing engines. The information revealed by the world’s second largest maker of x86 chips is slightly different compared to the data revealed a month before, which may indicate that the company still has no specs of the product set on stone.

Apparently, the first AMD Fusion processors that are named Swift will feature two x86 cores along with a graphics core and will be aimed at mobile computers, it was revealed by Patrick Moorhead, vice president of advanced marketing at AMD, in an interview with InfoWorld web-site. Later on quad-core microprocessor with integrated memory controller is possible. Last month another high-ranking AMD executive said that the first Fusion chip will have two or three x86 processing engines.

“The dual-core notebook processors will be available in the second half of 2009,” said John Taylor, an AMD spokesman.

Back in December AMD said that graphics core of the first-generation Fusion chip will be based on the latest ATI Radeon architecture. However, this time the company indicated that the graphics engine of AMD Fusion will be powered by yet unreleased graphics processing unit.

“Fusion’s graphics processor will be based on a graphics card AMD plans to release in the near future,” Mr. Taylor is reported to have said.

Considering the fact that AMD has just unveiled the whole ATI Radeon HD 3000-series lineup and the fact that it is rumoured to release its code-named ATI RV770 and ATI R700 graphics cards in Q2, its Swift processor may end up with ATI R700-generation graphics core.

AMD’s Swift processor – the first-generation of Fusion family – will become available commercially in the second half of 2009. However, after the company had to reconsider Fusion’s schedule a number of times and still cannot discuss the final specs of the chip, the actual timetable of AMD’s Fusion may flexible.