Product comparison · 2 laptops

Acer Aspire One D255-2DQkk Intel Atom® N450 Netbook vs HP Compaq Presario CQ56-100SD Notebook PC

80specifications compared
34differ
46identical
50known for one product only

Key differences

Display diagonal
- Aspire One D255-2DQkk Intel Atom® N450 Netbook:25.6 cm (10.1")
- Compaq Presario CQ56-100SD Notebook PC:39.6 cm (15.6")
Display resolution
- Aspire One D255-2DQkk Intel Atom® N450 Netbook:1024 x 600 pixels
- Compaq Presario CQ56-100SD Notebook PC:1366 x 768 pixels
Native aspect ratio
- Aspire One D255-2DQkk Intel Atom® N450 Netbook:5:3
- Compaq Presario CQ56-100SD Notebook PC:16:9
Processor family
- Aspire One D255-2DQkk Intel Atom® N450 Netbook:Intel Atom®
- Compaq Presario CQ56-100SD Notebook PC:Intel® Celeron®
Processor model
- Aspire One D255-2DQkk Intel Atom® N450 Netbook:N450
- Compaq Presario CQ56-100SD Notebook PC:900
Processor threads
- Aspire One D255-2DQkk Intel Atom® N450 Netbook:2
- Compaq Presario CQ56-100SD Notebook PC:1
Processor frequency
- Aspire One D255-2DQkk Intel Atom® N450 Netbook:1.66 GHz
- Compaq Presario CQ56-100SD Notebook PC:2.2 GHz
Processor cache
- Aspire One D255-2DQkk Intel Atom® N450 Netbook:0.512 MB
- Compaq Presario CQ56-100SD Notebook PC:1 MB

Side by side

Differences highlightedShow differences only

Comparison of D255-2DQkk, Compaq Presario CQ56-100SD Notebook PC
130 specifications	A Acer Aspire One D255-2DQkk Intel Atom® N450 Netbook Model D255-2DQkk View product	B HP Compaq Presario CQ56-100SD Notebook PC View product
Designidentical
Country of originKnown for one	Unknown — not stated by the source	China
Product typeKnown for one	Netbook	Unknown — not stated by the source
Display3 differ
Display diagonalDiffers	25.6 cm (10.1")	39.6 cm (15.6")
Display resolutionDiffers	1024 x 600 pixels	1366 x 768 pixels
Native aspect ratioDiffers	5:3	16:9
Display number of coloursKnown for one	16.78 million colours	Unknown — not stated by the source
Processor13 differ
Processor familyDiffers	Intel Atom®	Intel® Celeron®
Processor modelDiffers	N450	900
Processor threadsDiffers	2	1
Processor frequencyDiffers	1.66 GHz	2.2 GHz
Processor cacheDiffers	0.512 MB	1 MB
Processor front side busKnown for one	Unknown — not stated by the source	800 MHz
Processor socketDiffers	BGA 559	LGA 3647 (Socket P)
Processor seriesDiffers	Intel Atom N400 Series	Intel Celeron Processor 900 Series for Mobile
Processor codenameDiffers	Pineview	Penryn
Bus typeDiffers	DMI	FSB
SteppingDiffers	A0	R0
Thermal Design Power (TDP)Differs	5.5 W	35 W
TcaseKnown for one	Unknown — not stated by the source	105 °C
Number of Processing Die TransistorsDiffers	123 M	410 M
Processing Die sizeDiffers	66 mm²	107 mm²
TjunctionKnown for one	100 °C	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Known for one	10	Unknown — not stated by the source
Memory5 differ
Internal memoryDiffers	1 GB	2 GB
Internal memory typeDiffers	DDR2-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Differs	1 x 1 GB	1 x 2 GB
Memory slotsDiffers	1x SO-DIMM	2x SO-DIMM
Maximum internal memoryDiffers	2 GB	8 GB
Memory clock speedKnown for one	667 MHz	Unknown — not stated by the source
Storage1 differ
Optical drive typeKnown for one	Unknown — not stated by the source	DVD Super Multi DL
Card reader integratedDiffers	Yes	No
HDD capacityKnown for one	250 GB	Unknown — not stated by the source
Compatible memory cardsKnown for one	MMC, SD	Unknown — not stated by the source
Graphicsidentical
Discrete graphics cardKnown for one	Unknown — not stated by the source	Yes
Discrete graphics card modelKnown for one	Unknown — not stated by the source	Intel® GMA 4500M
Graphics card familyKnown for one	Unknown — not stated by the source	Intel
Maximum graphics card memoryKnown for one	Unknown — not stated by the source	0.797 GB
On-board graphics cardKnown for one	Yes	Unknown — not stated by the source
Optical driveidentical
LightScribeKnown for one	Unknown — not stated by the source	Yes
Network2 differ
Networking featuresDiffers	Fast Ethernet, WLAN	Ethernet, Fast Ethernet
BluetoothDiffers	Yes	No
Wireless technologyKnown for one	802.11b/g/n	Unknown — not stated by the source
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
Ethernet LAN data ratesKnown for one	10,100 Mbit/s	Unknown — not stated by the source
Bluetooth versionKnown for one	3.0+HS	Unknown — not stated by the source
Ports & interfacesidentical
DVI portKnown for one	Unknown — not stated by the source	No
S/PDIF out portKnown for one	Unknown — not stated by the source	No
Microphone inKnown for one	Unknown — not stated by the source	Yes
Docking connectorKnown for one	Unknown — not stated by the source	No
ExpressCard slotKnown for one	Unknown — not stated by the source	No
CardBus PCMCIA slots quantityKnown for one	Unknown — not stated by the source	0
CardBus PCMCIA slot typeKnown for one	Unknown — not stated by the source	No
SmartCard slotKnown for one	Unknown — not stated by the source	No
TV-in portKnown for one	Unknown — not stated by the source	No
TV-outKnown for one	Unknown — not stated by the source	No
HDMI ports quantityKnown for one	0	Unknown — not stated by the source
Performanceidentical
Motherboard chipsetKnown for one	Unknown — not stated by the source	Intel® GL40 Express
GPS (satellite)Known for one	No	Unknown — not stated by the source
Keyboardidentical
Keyboard layoutKnown for one	Unknown — not stated by the source	QWERTY
Software1 differ
Operating system installedDiffers	Windows 7 Starter	Windows 7 Home Premium
Processor special features6 differ
Embedded options availableDiffers	Yes	No
Enhanced Intel SpeedStep TechnologyDiffers	Yes	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Processor ARK IDDiffers	42503	41498
Processor package sizeDiffers	22 x 22 mm	35 x 35 mm
Thermal Monitoring TechnologiesDiffers	Yes	No
Processor codeKnown for one	SLBMG	Unknown — not stated by the source
Supported instruction setsKnown for one	SSE2, SSE3, SSSE3	Unknown — not stated by the source
Batteryidentical
Battery technologyKnown for one	Lithium-Ion (Li-Ion)	Unknown — not stated by the source
Battery life (max)Known for one	8 h	Unknown — not stated by the source
Poweridentical
AC adapter powerKnown for one	40 W	Unknown — not stated by the source
Securityidentical
Cable lock slotKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Weight & dimensions3 differ
WeightDiffers	1.25 kg	2.55 kg
WidthDiffers	259 mm	374 mm
DepthDiffers	185 mm	246 mm
Height (front)Known for one	Unknown — not stated by the source	3.28 cm
Height (rear)Known for one	Unknown — not stated by the source	3.78 cm
HeightKnown for one	24 mm	Unknown — not stated by the source
Other featuresidentical
Infrared data portKnown for one	Unknown — not stated by the source	No
Internal modemKnown for one	Unknown — not stated by the source	No
TV tuner integratedKnown for one	Unknown — not stated by the source	No
Audioidentical
Built-in microphoneKnown for one	Yes	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for one	ENERGY STAR	Unknown — not stated by the source

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.

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