Product comparison · 2 cpus

HP Intel Pentium 4 640 vs HP Intel Pentium D 920

Key differences

Processor family
- Intel Pentium 4 640:Intel Pentium 4 HT
- Intel Pentium D 920:Intel® Pentium® D
Processor model
- Intel Pentium 4 640:640
- Intel Pentium D 920:920
Processor base frequency
- Intel Pentium 4 640:3.2 GHz
- Intel Pentium D 920:2.8 GHz
Processor cores
- Intel Pentium 4 640:1
- Intel Pentium D 920:2
Processor lithography
- Intel Pentium 4 640:90 nm
- Intel Pentium D 920:65 nm
Processor cache
- Intel Pentium 4 640:2 MB
- Intel Pentium D 920:4 MB
Processor cache type
- Intel Pentium 4 640:L2
- Intel Pentium D 920:L3
Thermal Design Power (TDP)
- Intel Pentium 4 640:84 W
- Intel Pentium D 920:65 W

Differences highlightedShow differences only

Comparison of Intel Pentium 4 640, Intel Pentium D 920
29 specifications	A HP Intel Pentium 4 640 View product	B HP Intel Pentium D 920 View product
Processor9 differ
Processor familyDiffers	Intel Pentium 4 HT	Intel® Pentium® D
Processor modelDiffers	640	920
Processor base frequencyDiffers	3.2 GHz	2.8 GHz
Processor coresDiffers	1	2
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Processor lithographyDiffers	90 nm	65 nm
Processor operating modes	64-bit	64-bit
Processor cacheDiffers	2 MB	4 MB
Processor cache typeDiffers	L2	L3
Processor front side bus	800 MHz	800 MHz
Thermal Design Power (TDP)Differs	84 W	65 W
VID Voltage RangeDiffers	1.200 - 1.400 V	1.200 - 1.3375 V
FSB Parity	No	No
Graphicsidentical
On-board graphics card	No	No
Features3 differ
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Thermal Monitoring TechnologiesDiffers	Yes	No
Number of Processing Die TransistorsDiffers	169 M	376 M
Processing Die sizeDiffers	135 mm²	162 mm²
Embedded options available	No	No
Processor special features1 differ
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel Trusted Execution Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Intel® Turbo Boost Technology	No	No
Intel Demand Based Switching	No	No
Intel® AES New Instructions (Intel® AES-NI)Known for one	Unknown — not stated by the source	No
Operational conditions1 differ
TcaseDiffers	66.6 °C	63.4 °C
Weight & dimensionsidentical
Processor package sizeKnown for one	37.5 mm	Unknown — not stated by the source
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)	No	No

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.