PCI Express Set To Take-Off
Business Week is carrying a report and an interview with ATI CEO Dave Orton, on the upcoming PCIE rollout. EETimes is carrying a related article, outlining NVidia's plans to use a 'bridge chip' to allow for a smoother transition to the new technology.
Archrivals Nvidia Corp. and ATI Technologies Inc. are taking very different approaches as they roll out graphics processors and modules aimed at the first crop of PCs supporting the serial PCI Express interconnect. Nvidia (Santa Clara, Calif.) will initially ship bridge chips for its existing graphics processors, while ATI (Markham, Ontario) is announcing this week a new line of graphics controllers with native Express support.
Graphics are the most important element of the I/O shift, given the bandwidth-hungry nature of the chips that initially use 16 channels of Express while most other peripherals use a single lane. "The primary attachment for Express probably for many years to come will be graphics," McCarron said.
The use of bridge chips to manage inventory through the first phase of the transition was natural for Nvidia since it commands the lion's share of the discrete desktop graphics sector. Nvidia developed a proprietary 16x version of the AGP bus linking its existing graphics chips to the Express bridges.
Nvidia claims that use of bridge chips doesn't really affect performance, but I guess we'll all have to wait and see..
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