Intel Pentium 4 1.4 vs Intel Pentium 4 1.5

Comparative analysis of Intel Pentium 4 1.4 and Intel Pentium 4 1.5 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization.

Intel Pentium 4 1.4

Intel Pentium 4 1.5

Differences

Reasons to consider the Intel Pentium 4 1.4

Around 5% lower typical power consumption: 54.7 Watt vs 57.8 Watt

Thermal Design Power (TDP)	54.7 Watt vs 57.8 Watt

Reasons to consider the Intel Pentium 4 1.5

Around 7% higher clock speed: 1.5 GHz vs 1.4 GHz
Around 1% higher maximum core temperature: 73°C vs 72°C

Maximum frequency	1.5 GHz vs 1.4 GHz
Maximum core temperature	73°C vs 72°C

Compare specifications (specs)

	Intel Pentium 4 1.4	Intel Pentium 4 1.5
Essentials
Architecture codename	Willamette	Willamette
Launch date	November 2000	November 2000
Place in performance rating	not rated	not rated
Series	Legacy Intel® Pentium® Processor	Legacy Intel® Pentium® Processor
Status	Discontinued	Discontinued
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	1.40 GHz	1.50 GHz
Bus Speed	400 MHz FSB	400 MHz FSB
Die size	217 mm2	217 mm2
L1 cache	8 KB	8 KB
L2 cache	256 KB	256 KB
Manufacturing process technology	180 nm	180 nm
Maximum case temperature (TCase)	72 °C	73 °C
Maximum core temperature	72°C	73°C
Maximum frequency	1.4 GHz	1.5 GHz
Number of cores	1	1
Transistor count	42 million	42 million
VID voltage range	1.600V-1.75V	1.595V-1.75V
Memory
Supported memory types	DDR1, DDR2	DDR1, DDR2
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	53.3mm x 53.3mm	53.3mm x 53.3mm
Sockets supported	PPGA478, PPGA423	PPGA478, PPGA423
Thermal Design Power (TDP)	54.7 Watt	57.8 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
Virtualization
Intel® Virtualization Technology (VT-x)