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The First PCI-Express Products

Although PCI-Express has been in the works since 2001, only now are PCI-Express products beginning to arrive on store shelves. The new ATI Radeon X-series (X300, X600, and X800) GPUs are designed specifically for use in PCI-Express slots. NVIDIA uses an AGP/PCI-Express bridge technology to enable the same GPUs to be used in both types of graphics cards.

The first motherboard chipsets which support PCI-Express are listed in Table 2.

Table 2 – Chipsets Incorporating PCI-Express Support

Vendor/Website

Model #

Processors Supported

ALi

http://www.ali.com.tw

M1685

Pentium 4, Celeron 4

Intel

http://www.intel.com

915P, 915G (Grantsdale)

Pentium 4, Celeron 4

SiS

http://www.sis.com

SiS656

Pentium 4, Celeron 4

ATI

http://www.ati.com

RX480, RS480

Athlon 64

SiS

http://www.sis.com

SiS756, SiS761, SiS761GX

Athlon 64

VIA Technologies

http://www.viatech.com

K8T890, K8M890

Athlon 64


Note that the Athlon XP and Duron processors are not supported by PCI-Express chipsets, at least initially. Given AMD's drive to move mid-range and high-end users to 64-bit computing, this isn't surprising.

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