The chips, which will both come out in the fourth quarter, will work with Intels current hardware, being paired including Lindenhurst chip set, for dual processor systems, and Truland chip set for multiprocessor systems, for example.
Paxville DP will arrive first, shipping early in the fourth quarter, according to Gelsinger, and will include two 2MB caches.
Paxville MP, which arrives next, will and also feature twin 2MB caches, along with an 800MHz bus, Gelsinger said.
Many of the extra Xeon platform features, including virtualization, wont come out until 2006, however, Gelsinger said.
Xeon DP will see the Lindenhurst chip set-Paxville DP combination give way to a new platform, based around a chip set named by Blackford and a chip called Dempsey, in the early part of 2006.
This Blackford-Dempsey platform, which will incorporate Virtualization Technology, Active Management and I/O Acceleration Technology, will be part of an overall Xeon DP platform called Bensly.
One of the highlights of Dempsey will be dual busses, which will bump up throughput of data passing into and out of it.
The Blackford chip set, meanwhile, will incorporate four channels of memory and use fully buffered memory modules.
Woodcrest, a new architecture, dual-core chip will come later in 2006, replacing Dempsey on the Blackford chip set. Woodcrest will have 4MB of cache, Gelsinger said.
Xeon MP systems, based on the Truland platform, will be updated with a new large cache chip called Tulsa in 2006, and later will receive Whitefield, one of Intels first quad-core chips.
Tulsa will offer 16MB of cache, which helps boost performance. Whitefield will have an equal amount of cache, Gelsinger said, revealing for the first time the cache size of the quad-core, new architecture chip.
"Whitefield will be one of our first quad-core offerings to the marketplace," Gelsinger said.
Intel will also fit in Sossaman, a low-power, dual-core chip for blade servers in 2006, he added.
Gelsinger also touched on Intels Itanium chip. Its shipments, he said, rose 170 percent in the first quarter of 2005 from the first quarter of 2004, he said.
The chip now has 4,500 applications or computing tools available for it, he added.
Intel will continue to move Itanium 2 forward by adding more processor cores to it.
A dual-core configuration, dubbed Montecito, will start shipping later this year.
Intel also disclosed that a quad-core Itanium with a chip called Tukwila, by about 2007, Gelsinger said.
"Big iron makes you feel good, right?" he asked after showing off a stand of several Itanium systems from companies such as Hewlett-Packard Co.
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