Intel Celeron 2.0 vs Intel Pentium 4 2.66

Comparative analysis of Intel Celeron 2.0 and Intel Pentium 4 2.66 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization.

Intel Celeron 2.0

Intel Pentium 4 2.66

Differences

Reasons to consider the Intel Celeron 2.0

CPU is newer: launch date 1 month(s) later
Around 25% lower typical power consumption: 52.8 Watt vs 66.1 Watt

Launch date	September 2002 vs August 2002
Thermal Design Power (TDP)	52.8 Watt vs 66.1 Watt

Reasons to consider the Intel Pentium 4 2.66

Around 33% higher clock speed: 2.66 GHz vs 2 GHz
Around 9% higher maximum core temperature: 74°C vs 68°C
4x more L2 cache, more data can be stored in the L2 cache for quick access later

Maximum frequency	2.66 GHz vs 2 GHz
Maximum core temperature	74°C vs 68°C
L2 cache	512 KB vs 128 KB

Compare specifications (specs)

	Intel Celeron 2.0	Intel Pentium 4 2.66
Essentials
Architecture codename	Northwood	Northwood
Launch date	September 2002	August 2002
Place in performance rating	not rated	not rated
Series	Legacy Intel® Celeron® Processor	Legacy Intel® Pentium® Processor
Status	Discontinued	Discontinued
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	2.00 GHz	2.66 GHz
Bus Speed	400 MHz FSB	533 MHz FSB
Die size	131 mm2	131 mm2
L1 cache	8 KB	8 KB
L2 cache	128 KB	512 KB
Manufacturing process technology	130 nm	130 nm
Maximum core temperature	68°C	74°C
Maximum frequency	2 GHz	2.66 GHz
Number of cores	1	1
Transistor count	55 million	55 million
VID voltage range	1.315V-1.525V	1.345V-1.420V
Memory
Supported memory types	DDR1, DDR2	DDR1, DDR2
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	35mm x 35mm	35mm x 35mm
Sockets supported	PPGA478	PPGA478
Thermal Design Power (TDP)	52.8 Watt	66.1 Watt
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
FSB parity
Idle States
Intel 64
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Physical Address Extensions (PAE)	32-bit
Virtualization
Intel® Virtualization Technology (VT-x)