Product comparison · 2 laptops

HP ProBook 4520s + AP355ET vs HP ProBook 6550b + U4395A

124specifications compared
25differ
99identical
15known for one product only

Key differences

Processor family
- ProBook 4520s + AP355ET:Intel® Core™ i3
- ProBook 6550b + U4395A:Intel® Core™ i5
Processor generation
- ProBook 4520s + AP355ET:3rd gen Intel® Core™ i3
- ProBook 6550b + U4395A:4th gen Intel® Core™ i5
Processor model
- ProBook 4520s + AP355ET:i3-330M
- ProBook 6550b + U4395A:i5-450M
Processor frequency
- ProBook 4520s + AP355ET:2.13 GHz
- ProBook 6550b + U4395A:2.4 GHz
System bus rate
- ProBook 4520s + AP355ET:2.5 GT/s
- ProBook 6550b + U4395A:4.8 GT/s
Processor socket
- ProBook 4520s + AP355ET:BGA 1288
- ProBook 6550b + U4395A:Socket 988
Stepping
- ProBook 4520s + AP355ET:C2
- ProBook 6550b + U4395A:K0
CPU multiplier (bus/core ratio)
- ProBook 4520s + AP355ET:16
- ProBook 6550b + U4395A:18

Side by side

Differences highlightedShow differences only

Comparison of ProBook 4520s + AP355ET, ProBook 6550b + U4395A
139 specifications	A HP ProBook 4520s + AP355ET View product	B HP ProBook 6550b + U4395A View product
Designidentical
Country of origin	China	China
Product colourKnown for one	Unknown — not stated by the source	Silver
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
Processor9 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i3	Intel® Core™ i5
Processor generationDiffers	3rd gen Intel® Core™ i3	4th gen Intel® Core™ i5
Processor modelDiffers	i3-330M	i5-450M
Processor cores	2	2
Processor threads	4	4
Processor frequencyDiffers	2.13 GHz	2.4 GHz
System bus rateDiffers	2.5 GT/s	4.8 GT/s
Processor cache	3 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socketDiffers	BGA 1288	Socket 988
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i3-300 Mobile Series	Intel Core i5-400 Series
Processor codename	Arrandale	Arrandale
Bus type	DMI	DMI
FSB Parity	No	No
SteppingDiffers	C2	K0
Thermal Design Power (TDP)	35 W	35 W
Tjunction	105 °C	105 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x16	1x16
PCI Express slots version	2.0	2.0
Number of Processing Die Transistors	382 M	382 M
Processing Die size	81 mm²	81 mm²
CPU multiplier (bus/core ratio)Differs	16	18
ECC supported by processor	No	No
Processor boost frequencyKnown for one	Unknown — not stated by the source	2.66 GHz
Memory1 differ
Internal memoryDiffers	3 GB	2 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1333 MHz	1333 MHz
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memoryKnown for one	8 GB	Unknown — not stated by the source
Storageidentical
Total storage capacity	320 GB	320 GB
HDD interface	SATA II	SATA II
HDD speed	7200 RPM	7200 RPM
Optical drive type	DVD Super Multi DL	DVD Super Multi DL
Card reader integrated	Yes	Yes
Graphics2 differ
On-board graphics card	Yes	Yes
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	AMD Mobility Radeon HD 530v	AMD Mobility Radeon HD 540v
Discrete graphics card memory	0.512 GB	0.512 GB
Graphics card family	AMD	AMD
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card base frequency	500 MHz	500 MHz
On-board graphics card dynamic frequency (max)Differs	667 MHz	766 MHz
Audio1 differ
Audio systemDiffers	High Definition Audio	HP Premier Sound
Number of built-in speakers	2	2
Optical driveidentical
LightScribe	Yes	Yes
Networkidentical
Wi-Fi	Yes	Yes
Networking features	Gigabit Ethernet	Gigabit Ethernet
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
Bluetooth	Yes	Yes
Bluetooth version	2.1+EDR	2.1+EDR
Ports & interfaces1 differ
USB 2.0 ports quantity	3	3
eSATA ports quantity	1	1
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityKnown for one	1	Unknown — not stated by the source
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	No	Yes
ExpressCard slot	Yes	Yes
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	Yes	Yes
Modem (RJ-11) portsKnown for one	1	Unknown — not stated by the source
TV-out	No	No
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	1
TV-in portKnown for one	Unknown — not stated by the source	No
Serial ports quantityKnown for one	Unknown — not stated by the source	1
Performanceidentical
Motherboard chipset	Intel® HM57 Express	Intel® HM57 Express
Keyboardidentical
Pointing device	Touchpad	Touchpad
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architectureKnown for one	32-bit	Unknown — not stated by the source
Processor special features5 differ
Intel® Wireless Display (Intel® WiDi)	No	No
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithography	45 nm	45 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	Yes	Yes
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	Yes	Yes
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	Yes	Yes
Intel Fast Memory Access	Yes	Yes
Intel Flex Memory Access	Yes	Yes
Intel Rapid Storage Technology	No	No
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)	Yes	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	No	No
Intel® AES New Instructions (Intel® AES-NI)	No	No
Intel® Anti-Theft Technology (Intel® AT)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	Yes	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® InTru™ 3D Technology	No	No
Intel® Insider™	No	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Quick Sync Video Technology	No	No
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Intel® Turbo Boost TechnologyDiffers	No	1.0
Physical Address Extension (PAE)Differs	Yes	36 bit
Processor ARK IDDiffers	47663	49022
Processor codeDiffers	SLBNF	SLBTZ
Processor package size	rPGA 37.5x 37.5, BGA 34x28	rPGA 37.5x 37.5, BGA 34x28
Supported instruction setsDiffers	SSE4.1, SSE4.2	SSE4.1/4.2
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Battery1 differ
Number of battery cells	6	6
Battery life (max)Differs	5 h	6.5 h
Poweridentical
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Weight & dimensions4 differ
WeightDiffers	2.39 kg	2.51 kg
WidthDiffers	371.8 mm	371.4 mm
DepthDiffers	249.6 mm	248 mm
Height (front)Differs	2.77 cm	3.48 cm
Other features1 differ
Infrared data port	No	No
Internal modemDiffers	Yes	No
Modem speedKnown for one	56 Kbit/s	Unknown — not stated by the source
Modem typeKnown for one	V.92	Unknown — not stated by the source
Intel segment tagging	Enterprise	Enterprise
Supplied AC adapter type	AC	AC
TV tuner integratedKnown for one	Unknown — not stated by the source	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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