Advanced Micro Devices is getting October off to a start by releasing a series of processors for desktop PCs.

On Monday, the Sunnyvale, Calif.-based chipmaker announced a 1.1GHz Duron processor for the value segment of the PC market. As earlier reported, the chip matches the clock speed of Intel's 1.1GHz Celeron, but benchmark testers have stated that the Duron could be a better overall value. The AMD chip will be priced at $103 in quantities of 1,000. Systems based on the chip should be available in the fourth quarter, the company said. In another week, AMD will come out with its line of Athlon XP processors for performance PCs. Formerly code-named Palomino (and "Corvette" before that), the Athlon XP will be AMD's challenger to the Pentium 4. The new chip, which will run at 1.5GHz, will also feature a new branding scheme. The 1.5GHz chip will actually be known at the Athlon XP 1800, so as to look more sporting on shelves when compared with a 2GHz Pentium 4. The company will then complete the silicon hat trick by revealing the technology behind its "Hammer" processors for servers at the Microprocessor Forum on Oct. 15 in San Jose, Calif. Hammer, slated to come out commercially next year, will compete against Intel's Itanium but will cost less, according to AMD. AMD and Intel are bitter rivals when it comes to processors. For years, AMD lived in the shadow of the far larger Intel and competed largely by selling its chips for less. The picture changed in August 1999, when AMD introduced the first Athlon, which drew rave reviews from analysts and consumers. Major PC manufacturers began to adopt the chip, allowing the company to raise its market share past 20 percent. The company also came out with its first dual-processor chipset that would allow manufacturers to incorporate Athlon into servers.