PC Processors (Pentium 4 - Northwood)
Code name
Micro-architecture
MMX™ / Streaming SIMD
SSE2
Hyper-Threading
L1 cache - bus
L1 data cache
L1 instruction cache
L2 cache - size
L2 cache - data path
L3 cache
System bus
Memory addressability
Frontside bus - width
Execution units
Out-of-order instructions
Branch prediction
Speculative execution
Math coprocessor
Compatibility
Cache line size
Multiple processors
Technology (micron)
Transistors
Package and connector
Frequency
and available date
Chipset support
All trademarks are the property of their respective owners
© IBM Corp.
(22INTEL) Compiled by Roger Dodson, IBM. February 2004
Northwood
IA-32 / NetBurst™ (CISC/RISC/micro-ops) / 20 stage pipeline (Hyper-pipelined technology)
MMX™ (57 new instructions) / Streaming SIMD Extensions (70 new instructions)
Streaming SIMD Extensions 2 (144 new instructions)

3.06GHz with 533MHz and all 800MHz system bus processors:

Hyper-Threading (HT) Technology (hardware support
for multi-threaded applications)
256-bit data path / full speed
8KB data cache / 4-way set associative / write-through / 64 byte cache line / integrated
Size not published / holds 12,000 micro-ops / 8-way set associative / integrated /
called Execution Trace Cache; caches decoded x86 instructions (micro-ops)
512KB / full speed (Advanced Transfer Cache)
256-bit data path (32 bytes) / transfers on each bus clock / 128 byte cache line size (usually divided into two 64 byte
sectors) / 8-way set associative / integrated / unified (internal die; on die) / ECC
None
400 or 533 or 800MHz (transfers data four times per clock) / address bus transfers at two times per clock /
64 byte cache line size
64GB memory addressability / 36-bit addressing / address bus is double clocked at 200, 266, or 400MHz
64-bit data path
2 integer units; 1 floating point units; 1 load unit; 1 store unit
Two integer units (or Arithmetic Logic Units) run at two times core frequency (Rapid Execution Engine)
Yes
Dynamic (based on history) / 4KB Branch Target Buffer
Yes (Advanced Dynamic Execution)
Pipelined floating point unit / handles 128-bit floating point registers
Compatible with IA-32 software
128 bytes (32 bytes x 4 chunks); burst mode bus of addr-data-data-data
No SMP support
0.13u
~55 million
Flip-Chip Pin Grid Array-2 (FC-PGA2) requires 478-pin surface mount Zero Insertion Force (ZIF) socket
named mPGA478B socket
1.6GHz sub-45W TDP (limited to under 45 watts thermal design point; for small form factor desktops); avail Jan 2002
1.8GHz sub-45W TDP (limited to under 45 watts thermal design point; for small form factor desktops); avail Jan 2002
2.0GHz sub-45W TDP (limited to under 45 watts thermal design point; for small form factor desktops); avail Jan 2002
1.8A GHz with 400MHz system bus:available July 2002
2.0A GHz with 400MHz system bus:available January 2002 ("A" signifies the 0.13 micron version, not 0.18 micron)
2.2GHz with 400MHz system bus:available January 2002
2.26GHz with 533MHz system bus:available May 2002
2.4GHz with 400MHz system bus:available April 2002
2.4B GHz with 533MHz system bus:available May 2002
2.4C GHz with 800MHz system bus:available May 2003 with Hyper-Threading Technology
2.5GHz with 400MHz system bus:available August 2002
2.53GHz with 533MHz system bus:available May 2002
2.6GHz with 400MHz system bus:available August 2002
2.6C GHz with 800MHz system bus:available May 2003 with Hyper-Threading Technology
2.66GHz with 533MHz system bus:available August 2002
2.8GHz with 533MHz system bus:available August 2002
2.8C GHz with 800MHz system bus:available May 2003 with Hyper-Threading Technology
3.0GHz with 800MHz system bus:available April 2003 with Hyper-Threading Technology
3.0GHz with 400MHz system bus: available April 2003 (used in ThinkPad G40)
3.06GHz with 533MHz system bus:available November 2002 with Hyper-Threading Technology
3.2GHz with 800MHz system bus:available June 2003 with Hyper-Threading Technology
3.4GHz with 800MHz system bus:available February 2004 with Hyper-Threading Technology
Intel 850 or 850E with dual channel RDRAM memory
Intel 845 with SDRAM or DDR-SDRAM memory
Intel 865 family with single or dual channel DDR-SDRAM memory (400, 533, or 800 MHz system bus)
Intel 875P with single or dual channel DDR-SDRAM memory (800 MHz system bus)
Intel
®
Pentium
®

4 for high performance desktop systems

Created by IBM PC Institute
Personal Systems Reference (PSREF)