Athlon XP 2100+: AMD Turns Up The Heat

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Comparing The Cores: Palomino Vs. Thoroughbred Vs. Northwood

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Manufacturer	AMD	AMD	Intel
Processor	Athlon XP Palomino Core	Athlon XP Thoroughbred Core	Pentium 4 Northwood Core
Introduction	October 9, 2001	Q2, 2002	January 7, 2002
Clock Frequencies	1.2 - 1.80 GHz	1.86 - 2.xx GHz	1.6 - 2.xx GHz
Manufacturing Process	0,18 µm	0,13 µm	0,13 µm
Die size	128 mm2	80 mm2	146 mm2
Number of Gates	37,5 Million	37,5 Million	55 Million
Platform	Socket462	Socket462	Socket478
CPU Bus Clock(Front Side Bus)	133 MHz / 266 MHz DDR	133 MHz / 266 MHz DDR	100 MHz / 400 MHz QDR
L1 Execution Cache Size	64 kB	64 kB	12.000 µ-Ops (Trace Cache)
Execution Pre Decode?	no	no	yes
L1 Data Cache Size	64 kB	64 kB	8 kB (unconfirmed)
Hardware Data Prefetch	yes	yes	yes
L1 Cache Clock	core clock	core clock	core clock
L1 Data Cache Bus Width	64 bit	64 bit	256 bit
L2 Cache Size	256 kB	256 kB	512 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	VIA KT133 to KT333ASiS 735 and SiS 745ALi Magik 1Nvidia nForceAMD 750 and 760	VIA KT133A to KT333ASiS 735 and SiS 745ALi Magik 1Nvidia nForceAMD 750 and 760	Intel 845, Intel 845D and Intel 845EIntel 850 and Intel 850EVIA P4X266VIA P4X266ASiS 645
Type of Memory	SDRAM, DDR-SDRAM	SDRAM, DDR-SDRAM	SDRAM, DDR-SDRAM, RDRAM
Memory Clock	100/133/166 MHz	100/133/166 MHz	100/133/166/300/400/533 MHz
Instruction Extensions	Row 22 - Cell 1	Row 22 - Cell 2	Row 22 - Cell 3
MMX	yes	yes	yes
Enhanced 3DNow!	yes	yes	no
3DNow! Professional	yes	yes	no
SSE	yes	yes	yes
SSE2	no	no	yes
Electrical Specifications	Row 28 - Cell 1	Row 28 - Cell 2	Row 28 - Cell 3
SMP-Support	no ('not officially endorsed or supported')	no ('not officially endorsed or supported')	no
Core Voltage	1,75 Volt	1,5 Volt	1,5 Volt
Thermal Protection(Thermal Diode)	yes	yes	yes
Integrated Thermal Protection Logic	no, requires logic on motherboard	no, requires logic on motherboard	yes

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