The new chip offers twice the performance, three times the performance-per-watt and four times the performance-per-CPU as the current Paxville MP processor, Kilroy said. Intel, which also is offering Tulsa technology in its four-socket SR4850HW4x and SR6850HW4x servers, is aiming the chip at such heavy-duty workloads as databases, supply chain management and IT consolidation.The chip comes in several models, ranging from the largest, the 7140M, at 3.4GHz and 16MB of cache, to the smallest, the 7110, at 2.5GHz and 4MB. Prices range from $856 per 1,000 units shipped to $1,980.The 7140M also has a large power envelope of about 150 watts, though Intel also offers a versionat 3GHz with 4MB of cachethat comes in at 95 watts. However, Kilroy said he expects the larger models to sell better in a space where performance is key. "I dont see energy efficiency really as important in this segment," he said. That is a key difference between Intel and AMD, according to AMD officials. "We dont require customers to choose between high performance and great power savings," John Fruehe, worldwide market development manager for the AMD Server/Workstation Business, said in a statement. "We believe they should be able to get both in the same platform. ... Tulsa is a huge power consumer, which will represent a challenge for customers in both powering and cooling the server." Though still dominant, Intel has seen its smaller rival cut deeply into its market share over the past three years, in large part due to AMDs ability to beat Intel in such key areas as 64-bit computing in x86 systems, dual-core technology and energy efficiency. According to analyst firm IDC, of Framingham, Mass., AMD, of Sunnyvale, saw its worldwide market share of x86 servers climb to 20.2 percent in the second quarter. AMD now has chips running in servers from three of the top four vendors, and Delllong an Intel-only OEMlater this year will begin selling two- and four-socket Opteron-based systems. However, while admitting to mistakes over the past three years, Intel is aggressively rolling out new system chips in what it has dubbed the "summer of servers." Those have included not only the Tulsa and Montecito chips, but also two families of dual-core Xeon DP chips for servers running one and two processors. Intel also is expecting to come out with quad-core chips later this year, ahead of AMD, which wont release a quad-core Opteron until next year. Check out eWEEK.coms for the latest news, views and analysis on servers, switches and networking protocols for the enterprise and small businesses.