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Introduction
TM
®
1.5. INTRODUCE THE INTEL Celeron
/Pentium
Socket 370
!!!
Processor
TM
®
Figure 1.1: INTEL
Celeron
/Pentium
Socket370 Processor
!!!
1.6 What is AGP
The Accelerated Graphics Port (AGP) is a new port on the Host-To-PCI bridge
device that supports an AGP port. The main purpose of the AGP port is to
provide fast access to system memory.
The AGP port can be used either as fast PCI port (32-bits at 66MHz vs.32-Bits
at 33MHz) or as an AGP port which supports 2x data-rate, a read queue, and
side band addressing. When the 2x-data rate is used the port can transmit
data at 533MB/sec (66.6*2*4). The read-queue can be used to pipeline
reads – removing the effects of the reads-latency. Side band addressing can
be used to transmit the data address on a separate line in order to speed up
the transaction.
1-4
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