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The Fast LaneThe Fast Lane The key word is "double." Starting with the processor itself, Prescott Pentium 4s will carry twice the fast on-chip cache as their Northwood predecessors, and there's a similar doubling in the size of the front-side bus--the pipe carrying data from the processor to a new generation of double-data-rate main memory. Memory as fast as 533MHz will be available this spring, although you'll probably want to save a few dollars by choosing slower speeds for most company desktops. Moving outward, processor and memory will connect to a faster generation of graphics adapters and other I/O subsystems over a revolutionary new PC bus. PCI Express replaces the decade-old PCI bus with multiple channels that can be combined for demanding tasks like graphics processing. But even the average, single-channel task will benefit from twice the dedicated bandwidth, forestalling future bottlenecks. Add improvements like serial ATA and DVD rewritable drives, USB 2.0 and Firewire (IEEE 1394), and you'll find just about every aspect of PC architecture has been improved since the last great refresh of business desktops. Also, a sign of these networked times: The new Pentium 4s will include not only gigabit Ethernet, but also 802.11x wireless connectivity right out of the box. So while we're accustomed to measuring PC progress by clock speeds, there's a lot more to consider in upcoming desktop releases. Cluck for Your Buck Legal commitments prevent PC makers from going public with future designs. But expect business PCs clustered around the popular $1,000 price point--systems like Dell's OptiPlex or Hewlett-Packard's new Presario SR1000T--to gain faster clock speeds and system functionality this spring without more than a small, temporary price premium. The time-honored PC shopping tradition of getting a lot more for a little less will continue, McCarron says, especially in light of Intel's new manufacturing process. It allows Intel to reduce the size of Prescott components from 0.13 microns to 90 nanometers, lower costs, and quickly scale up chip production. Historically, much of the savings achieved by chip and PC makers has filtered down to you. A ramp-up in the supply of Prescotts--perhaps to parry a rampup in AMD Athlons--can't hurt your budget. When introduced in February, Prescott chip prices were on a par with their Northwood predecessors. While Intel's market share is still well north of 80 percent and holding, you find particularly competitive price tags on Intel chips for which AMD has a credible alternative. So whether or not you ever buy, say, an Athlon-based HP Presario, tip a glass to AMD sometime for putting more cluck in your PC-buying buck. Time to Refresh? Article continued at: http://www.entrepreneur.com/Magazines/Copy_of_MA_SegArticle/0,4453,315206,00.html |
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