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Memory cacheability up to 256 terabytes of addressable memory in 64-bit mode and 4GB in 32-bit mode.Supported by the Intel i925XE and i915 chipsets, with Hyper-Threading.Rapid Execution Engine - ALU clocked at 2X frequency of core.31-stage "Hyper Pipelined" Technology for higher clock speeds.Execute Disable Bit - For enhanced security.Intel EM64T Extensions - 64-bit computing.
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Enhanced Intel SpeedStep Power Savings technology " EIST".Here's a run down of what's under the hood of these new P4s, as well as what is in store for you in the pages ahead as we run these new chips through their paces. Regardless, while AMD seemingly has been riding relatively high over the past 12 months, from a mindshare standpoint, Intel has been rather quietly advancing the Pentium 4 architecture such that today, the company many refer to as "Chipzilla" is bringing to bear significant innovations as well as a solid beefing-up of its current mainstream and enthusiast CPUs. Today marks the debut of an entire new lineup of processors from Intel with the company's 6XX Sequence Pentium 4, as well as a new addition to the Pentium 4 Extreme Edition family. These new Pentium 4 cores offer both architectural enhancements and new features including new Intel innovations such as EM64T extensions for 64-bit computing, "SpeedStep" power-savings technology, and new security improvements with Intel's "Execute Disable Bit" feature. Of course that's something Intel will be quick to point out as an "I told you so," but you've got to hand it to AMD for blazing a trail. You could easily argue that Intel has been blazing a trail of its own for a while now in multithreaded computing with the release of the Pentium 4 architecture's Hyper-Threading technology, which will evolve once again later this year as multicore CPUs are brought to market by both camps. Additionally, the Athlon 64 was the first processor to market with 64-bit extensions and processing capabilities, although there really hasn't been much if any impact in consumer or business usage models for the new architecture because there are scarce few 64-bit applications available, much less a mainstream 64-bit OS. AMD's Athlon 64 releases have recently positioned the company in the lead from a general performance standpoint.
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It's no secret that Intel has occassionally been playing a bit of catchup this year in the desktop and workstation processor arena.