A Detailed Comparison: Pentium 4/2200 Vs. Athlon XP 2000+

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12:06 PM - 01/07/2002 by Frank Völkel
Manufacturer Intel Intel AMD
Processor Pentium 4 w/Northwood Core Pentium 4 w/Willamette Core Athlon XP w/Palomino Core
Introduction January 7, 2002 November 20, 2000 October 9, 2001
Clock Frequencies 2 GHz, 2.2 GHz 1.3 - 2.0 GHz 1.2 - 1.66 GHz
Manufacturing Process 0,13 µm 0,18 µm 0,18 µm
Die size 146 mm² 217 mm² 128 mm²
Number of Gates 55 Million 42 Million 37,5 Million
Platform Socket478 Socket 423, Socket478 Socket462
CPU Bus Clock (Front Side Bus) 100 MHz / 400 MHz QDR 100 MHz / 400 MHz QDR 133 MHz / 266 MHz DDR
L1 Execution Cache Size 12.000 µ-Ops (Trace Cache) 12.000 µ-Ops (Trace Cache) 64 kB
Execution Pre Decode? yes yes no
L1 Data Cache Size 8 kB (unconfirmed) 8 kB 64 kB
Hardware Data Prefetch yes yes yes
L1 Cache Clock core clock core clock core clock
L1 Data Cache Bus Width 256 bit 256 bit 64 bit
L2 Cache Size 512 kB 256 kB 256 kB
L2 Cache Clock core clock core clock core clock
L2 Cache Addressable Range 64 GB 64 GB 64 GB
Processor Data Bus Width 64 bit 64 bit 64 bit
Platform Support
Chipsets Intel 845 (D)
Intel 850
VIA P4X266
VIA P4X266A
SiS 645
Intel 845
Intel 850
VIA P4X266
VIA KT133 to KT266A
SiS 735
ALi Magik 1
Nvidia nForce
AMD 750 und 760
Type of Memory SDRAM, DDR-SDRAM, RDRAM SDRAM, DDR-SDRAM, RDRAM SDRAM, DDR-SDRAM
Memory Clock 100/133/200/266/333/400 MHz 100/133/200/266/333/400 MHz 100/133/200/266 MHz
Instruction Extensions
MMX yes yes yes
Enhanced 3DNow! no no yes
3DNow! Professional no no yes
SSE yes yes yes
SSE2 yes yes no
Electrical Specifications
SMP-Support no no no ('not officially endorsed or supported')
Core Voltage 1,5 Volt 1,7 Volt 1,75 Volt
Thermal Protection (Thermal Diode) yes yes yes
Integrated Thermal Protection Logic yes yes no, requires logic on motherboard
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