Pentium 4/2200 vs. Athlon XP 2000+

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

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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 850VIA P4X266VIA P4X266ASiS 645	Intel 845Intel 850VIA P4X266	VIA KT133 to KT266ASiS 735ALi Magik 1Nvidia nForceAMD 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