Intel launched a new chipset for desktop computers on Tuesday and vowed to take back market share lost to its main rival, Advanced Micro Devices (AMD), by the end of the year.The P965 Express chipset, formerly code-named Broadwater, will work with Intel\u2019s new Core 2 Duo desktop processor, also known as Conroe, which is due to go on sale next month. The chipset has started shipping in volume to PC makers already, Intel said.Chipsets are collections of chips that surround the main processor and connect it to other parts of the motherboard. Together, the new desktop chips will offer a big boost in PC performance, including better graphics, while also using less power, said Anand Chandrasekher, an Intel senior vice president, in a speech at the start of Computex trade show in Taipei.They are among several upcoming products designed to help Intel claw back market share lost to AMD. Other upcoming launches include the Woodcrest server chip, due later this month, and the Merom laptop chip, due in August. Like Conroe, Merom and Woodcrest are based on Intel\u2019s new Core processor design, which replaces the Netburst architecture it uses today.Intel has discussed the processors before, but Chandrasekher also offered performance figures to show how much they will improve on its current offerings.Conroe will be 40 percent faster than Intel\u2019s best desktop chip today, but consume 40 percent less power, he said. The Merom notebook chip will offer 20 percent better performance and about the same battery life. Woodcrest, the server chip, will offer an 80 percent lift in performance but use 35 percent less power, according to Chandrasekher.The boost comes partly from the new Core architecture, but also from a move to more advanced manufacturing techniques. The figures are unofficial, based on Intel estimates using a benchmark called the SPECint_rate_base2000, the company noted.It\u2019s in the server arena that Intel could use a boost the most, since it is here that AMD\u2019s Opteron processors have been stealing market share. Speaking to reporters after his speech, Chandrasekher vowed that Intel will start to recover market share from AMD by the end of the year."The issues that caused us to lose share in desktops and servers, we think we\u2019ve corrected them, so I think we\u2019ll gain back our share," he said. "It\u2019ll take some time, but we\u2019ll reverse it."There was no mention of Intel\u2019s Itanium server processor in the executive\u2019s speech. He told reporters afterward that the first dual-core Itanium, code-named Montecito, is on track to ship the middle of this year\u2014meaning any day now\u2014but he declined to be more specific.Chandrasekher likened the significance of the Core 2 Duo chips to the introduction of Intel\u2019s first Pentium processor a decade ago. Perhaps ironically, he also announced a marketing shift in which Intel will relegate its Pentium line of processors to what the company calls its "value PC" segment, or those for cheaper PCs, alongside the Celeron. The Celeron brand in turn will be used for very low-end PCs, such as those sold in emerging markets, the executive said.The upcoming Core 2 Duo chips will occupy Intel\u2019s top pricing band, while its existing dual core chips will occupy the middle tier, Chandrasekher said.The Intel chief also announced what he called Intel\u2019s first "ultra-low voltage" dual-core notebook processor, the Core Duo U2500, which is based on the existing Netburst architecture. The chip will ship this month, he said. Pricing and specifications weren\u2019t immediately available.-James Niccolai, IDG News ServiceFor related news coverage, read Computex: Intel \u2018Surprised\u2019 by AMD\u2019s Dell Win and Intel to Launch Chip Offensive at Computex.Check out our CIO News Alerts and Tech Informer pages for more updated news coverage.