Product comparison · 2 laptops

HP Compaq Presario CQ57-420ED AMD E E-300 vs HP Compaq Presario CQ57-421ED AMD E E-300

64specifications compared
2differ
62identical
1known for one product only

Key differences

Internal memory
- Compaq Presario CQ57-420ED AMD E E-300:2 GB
- Compaq Presario CQ57-421ED AMD E E-300:4 GB
Docking connector
- Compaq Presario CQ57-420ED AMD E E-300:Yes
- Compaq Presario CQ57-421ED AMD E E-300:No

Side by side

Differences highlightedShow differences only

Comparison of CQ57-420ED, CQ57-421ED
65 specifications	A HP Compaq Presario CQ57-420ED AMD E E-300 Model CQ57-420ED View product	B HP Compaq Presario CQ57-421ED AMD E E-300 Model CQ57-421ED View product
Designidentical
Country of origin	China	China
Displayidentical
Display diagonal	39.6 cm (15.6")	39.6 cm (15.6")
Display resolution	1366 x 768 pixels	1366 x 768 pixels
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Processoridentical
Processor manufacturer	AMD	AMD
Processor family	AMD E	AMD E
Processor model	E-300	E-300
Processor cores	2	2
Processor frequency	1.3 GHz	1.3 GHz
Processor cache	1 MB	1 MB
Processor cache type	L2	L2
Memory1 differ
Internal memoryDiffers	2 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Known for one	1 x 2 GB	Unknown — not stated by the source
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memory	8 GB	8 GB
Storageidentical
Total storage capacity	320 GB	320 GB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD interface	SATA	SATA
HDD speed	5400 RPM	5400 RPM
Optical drive type	DVD Super Multi DL	DVD Super Multi DL
Card reader integrated	Yes	Yes
Graphicsidentical
On-board graphics card	Yes	Yes
Discrete graphics card	No	No
Discrete graphics card model	Not available	Not available
Graphics card family	AMD	AMD
On-board graphics card family	AMD Radeon HD 6000	AMD Radeon HD 6000
On-board graphics card model	AMD Radeon HD 6310	AMD Radeon HD 6310
Networkidentical
Wi-Fi	Yes	Yes
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	Yes	Yes
Bluetooth	No	No
Cabling technology	10/100Base-T(X)	10/100Base-T(X)
Ports & interfaces1 differ
USB 2.0 ports quantity	3	3
Ethernet LAN (RJ-45) ports	1	1
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connectorDiffers	Yes	No
ExpressCard slot	No	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	Yes	Yes
TV-out	No	No
Performanceidentical
Motherboard chipset	AMD A50M	AMD A50M
Keyboardidentical
Pointing device	Touchpad	Touchpad
Numeric keypad	No	No
Keyboard layout	QWERTY	QWERTY
Softwareidentical
Operating system installed	Windows 7 Home Premium	Windows 7 Home Premium
Operating system architecture	64-bit	64-bit
Batteryidentical
Battery technology	Lithium-Ion (Li-Ion)	Lithium-Ion (Li-Ion)
Number of battery cells	6	6
Poweridentical
AC adapter power	65 W	65 W
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Weight & dimensionsidentical
Weight	2.55 kg	2.55 kg
Width	376 mm	376 mm
Depth	247 mm	247 mm
Height	35.8 mm	35.8 mm
Other featuresidentical
Infrared data port	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.

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