Advanced Micro Devices, the world’s second largest maker of central processing units (CPUs), has decided to reschedule the launch of its six-core microprocessors by speeding up the release of the highest-performance Phenom II X6 chip and delaying the availability of a less speedier part, according to sources familiar with the company’s plans. In addition, more details about AMD’s Turbo Core technology have transpired.

Apparently, AMD decided to bring forward the launch of AMD Phenom II X6 1090T chip (3.20GHz) to the second quarter of 2010 and pull back the release of the model 1075T (3.0GHz) to the third quarter. The move will help AMD to get more positive press review for its new code-named Thuban processors since the parts with higher clock-speeds naturally offer higher performance, something that will be appreciated by potential buyers of the new CPUs.

More details have also emerged about AMD’s Turbo Core technology. Depending on the actual model and its specifications, AMD Phenom II X6 1000T-series chips will be able to boost their clock-speeds by 400MHz or 500MHz when only half of available cores are active, e.g., microprocessors work in triple-core mode. That said, the model Phenom II X6 1090T at 3.60GHz will most likely outperform the currently available Phenom II X4 965 Black Edition in typical cases.

Pricing of the chips is still not known precisely, but sources close to AMD said that the high-end AMD Phenom II X6 1090T will cost approximately $300, whereas the model 1055T will be priced at around $250. At present AMD’s most expensive desktop processor costs $185, therefore, the introduction of the Thuban chips will allow AMD to rather substantially boost pricing and, possibly, profit margin of its desktop offerings.

AMD did not comment on the news-story.

Tags: AMD, Phenom, Thuban, Leo, 45nm, Zosma