Product comparison · 2 laptops

Acer Apire 5551-2631 vs HP ProBook 6555b Notebook PC

57specifications compared
25differ
32identical
48known for one product only

Key differences

Processor model
- Apire 5551-2631:P320
- ProBook 6555b Notebook PC:N620
Processor frequency
- Apire 5551-2631:2.1 GHz
- ProBook 6555b Notebook PC:2.8 GHz
Processor cache
- Apire 5551-2631:1 MB
- ProBook 6555b Notebook PC:2 MB
Memory clock speed
- Apire 5551-2631:1066 MHz
- ProBook 6555b Notebook PC:1333 MHz
HDD interface
- Apire 5551-2631:SATA
- ProBook 6555b Notebook PC:SATA II
HDD speed
- Apire 5551-2631:5400 RPM
- ProBook 6555b Notebook PC:7200 RPM
Discrete graphics card model
- Apire 5551-2631:AMD Radeon HD 4250
- ProBook 6555b Notebook PC:AMD Mobility Radeon HD 4250
Bluetooth
- Apire 5551-2631:No
- ProBook 6555b Notebook PC:Yes

Side by side

Differences highlightedShow differences only

Comparison of Apire 5551-2631, ProBook 6555b Notebook PC
105 specifications	A Acer Apire 5551-2631 View product	B HP ProBook 6555b Notebook PC View product
Designidentical
Country of originKnown for one	Unknown — not stated by the source	China
Displayidentical
LED backlightKnown for one	Unknown — not stated by the source	Yes
Display resolutionKnown for one	1366 x 768 pixels	Unknown — not stated by the source
Native aspect ratioKnown for one	16:9	Unknown — not stated by the source
Processor3 differ
Processor modelDiffers	P320	N620
Processor frequencyDiffers	2.1 GHz	2.8 GHz
Processor cacheDiffers	1 MB	2 MB
Processor front side busKnown for one	1066 MHz	Unknown — not stated by the source
Memory1 differ
Memory clock speedDiffers	1066 MHz	1333 MHz
Memory upgradeKnown for one	Unknown — not stated by the source	8 GB
Internal memory typeKnown for one	DDR3-SDRAM	Unknown — not stated by the source
Memory layout (slots x size)Known for one	1 x 2 GB	Unknown — not stated by the source
Storage2 differ
HDD interfaceDiffers	SATA	SATA II
HDD speedDiffers	5400 RPM	7200 RPM
Maximum HDD capacityKnown for one	Unknown — not stated by the source	500 GB
Total storage capacityKnown for one	250 GB	Unknown — not stated by the source
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
Compatible memory cardsKnown for one	Memory Stick (MS), MMC, MMCmicro, MS PRO, SD	Unknown — not stated by the source
Graphics1 differ
Discrete graphics card modelDiffers	AMD Radeon HD 4250	AMD Mobility Radeon HD 4250
Maximum graphics card memoryKnown for one	0.256 GB	Unknown — not stated by the source
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	High Definition Audio
Audio includedKnown for one	Unknown — not stated by the source	HP Premier Sound; Integrated stereo speakers; Integrated microphone; Touch-sensitive controls
Number of built-in speakersKnown for one	2	Unknown — not stated by the source
Cameraidentical
Front cameraKnown for one	Unknown — not stated by the source	No
Front camera resolution (numeric)Known for one	1.3 MP	Unknown — not stated by the source
Optical driveidentical
LightScribeKnown for one	Unknown — not stated by the source	Yes
Network2 differ
Networking featuresKnown for one	Unknown — not stated by the source	Integrated Marvell Gigabit Ethernet PCI Controller (10/100/1000 NIC)
Wireless technologyDiffers	Wi-Fi	Broadcom 802.11a/b/g/n; HP Integrated Module with Bluetooth 2.1+EDR Wireless Technology
BluetoothDiffers	No	Yes
Bluetooth versionKnown for one	Unknown — not stated by the source	2.1+EDR
Networking typeKnown for one	Gigabite Ethernet	Unknown — not stated by the source
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
Cabling technologyKnown for one	10/100/1000BASE-T(X)	Unknown — not stated by the source
Ports & interfaces9 differ
eSATA ports quantityDiffers	0	1
HDMI ports quantityDiffers	1	0
DisplayPorts quantityDiffers	0	1
Firewire (IEEE 1394) portsDiffers	0	1
Docking connectorDiffers	No	Yes
ExpressCard slotDiffers	No	Yes
SmartCard slotDiffers	No	Yes
Modem (RJ-11) portsDiffers	0	1
Serial ports quantityDiffers	0	1
I/O portsKnown for one	Unknown — not stated by the source	3 USB 2.0; 1 eSATA/USB 2.0 Combo; 1 external VGA monitor; 1 DisplayPort; 1 1394a; 1 serial; 1 stereo microphone in; 1 stereo headphone/line-out; 1 AC power; 1 RJ-11 (select models); 1 RJ-45; 1 docking connector; 1 secondary battery connector
Keyboardidentical
Keyboard layoutKnown for one	Unknown — not stated by the source	QWERTY
Keyboard typeKnown for one	Unknown — not stated by the source	Full-sized spill-resistent keyboard with drain and separate numeric keypad
Pointing deviceKnown for one	Touchpad	Unknown — not stated by the source
Software2 differ
Operating system installedDiffers	Windows 7 Home Basic	Windows 7 Professional
Trial softwareKnown for one	Unknown — not stated by the source	Microsoft Office Professional 2007 McAfee Total Protection WinZip 14
Bundled softwareDiffers	Acer eRecovery Management, Adobe Flash Player, Adobe Reader, eSobi, Google Setup, Google Toolbar, Norton Online Backup, McAfee Virus Definitions, Cyberlink PowerDVD, NTI Media Maker, Microsoft Silverlight, Windows Live Essentials, Acer Assist, Acer Identity Card, Acer Registration, Acer Updater	HP ProtectTools Security Manager HP ProtectTools f Central Management HP Quick Launch Buttons Software HP QuickLook 3 HP QuickWeb HP Power Assistant HP Connection Manager 3.1 HP Wireless Assistant HP DayStarter
Compatible operating systemsKnown for one	Windows 7	Unknown — not stated by the source
Batteryidentical
Number of battery cellsKnown for one	Unknown — not stated by the source	6
Poweridentical
AC adapter powerKnown for one	65 W	Unknown — not stated by the source
Securityidentical
Security management descriptionKnown for one	Unknown — not stated by the source	HP ProtectTools Security Manager; Enhanced Pre-Boot Security; HP SpareKey; One-Step Logon; Setup Password; TPM 1.2 Embedded Security Chip; TPM Enhanced DriveLock; HP Disk Sanitizer; Lock slot; Support for Computrace LoJack Pro for HP ProtectTools
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 35 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 90%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 95%
Weight & dimensions4 differ
WeightDiffers	2.6 kg	2.51 kg
WidthDiffers	381 mm	371.4 mm
DepthDiffers	253 mm	248 mm
Height (front)Differs	2.5 cm	3.48 cm
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	371.4 X 248 X 34.8 mm
Height (rear)Known for one	3.4 cm	Unknown — not stated by the source
Hard driveidentical
Storage drive typeKnown for one	Unknown — not stated by the source	250 GB 7200 rpm SATA II
Storage drive controllerKnown for one	Unknown — not stated by the source	SED SATA II (7200 rpm) SATA II (7200 rpm)
Other features1 differ
Battery typeKnown for one	Unknown — not stated by the source	6-cell (55 WHr) Li-Ion
Minimum storage drive spaceKnown for one	Unknown — not stated by the source	250 GB
Power requirementsKnown for one	Unknown — not stated by the source	90W HP AC Adapter; HP Fast Charge
Internal modemDiffers	No	Yes
Intel segment taggingKnown for one	Unknown — not stated by the source	Enterprise
Manageability featuresKnown for one	Unknown — not stated by the source	HP 3D DriveGuard
Expansion slotsKnown for one	Unknown — not stated by the source	1 Express Card/54; 1 Media Card Reader An optional Integrated Smart Card Reader is available and replaces the ExpressCard/54 (or ExpressCard/34) slot.
Compliance industry standardsKnown for one	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	Unknown — not stated by the source
Power supply typeKnown for one	AC	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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