Intel Pentium 4 User Manual

AGP Interface Routing
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122 Intel
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Pentium
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4 Processor / Intel
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850 Chipset Family Platform Design Guide
The AGP interconnect design requires that the AGP card must be retained to the extent that the
card does not back out more than 0.99 mm (0.039 in) within the AGP connector. To accomplish
this it is recommended that new cards implement an additional notch feature in the mechanical
keying tab to allow an anchor point on the AGP card for interfacing with an AGP RM. The
retention mechanism’s round peg engages with the AGP card’s retention tab and prevents the card
from disengaging during dynamic loading. The additional notch feature in the mechanical keying
tab is required for 1.5-volt AGP cards and is recommended for the new 3.3-volt AGP cards.
Figure 78. AGP Left Handed Retention Mechanism Drawing

Intel Pentium 4 Specifications

General

Architecture	x86
Core Count	1
Microarchitecture	NetBurst
Manufacturer	Intel
Core Names	Willamette, Northwood, Prescott, Cedar Mill
Virtualization Technology	No
Release Date	November 20, 2000
Clock Speed	1.3 GHz to 3.8 GHz
FSB Speed	400 MHz to 1066 MHz
Socket	Socket 423, Socket 478, LGA 775
Introduced	2000
Product Line	Pentium
Front Side Bus	400 MHz to 1066 MHz
Hyper-Threading	Yes (Prescott and later)
64-bit Support	Yes (Prescott and later)
Instruction Set	MMX, SSE, SSE2, SSE3
Discontinued	2008
Process Technology	180 nm, 130 nm, 90 nm, 65 nm
L2 Cache	256 KB, 512 KB, 1 MB, 2 MB
Lithography	180 nm, 130 nm, 90 nm, 65 nm
L1 Cache	8 KB