Product comparison · 2 laptops

HP EliteBook QK346US laptop Intel® Core™ i5 i5-520M vs HP EliteBook SK181UP laptop Intel® Core™ i5 i5-540M Hybrid (2-in-1)

157specifications compared
31differ
126identical
27known for one product only

Key differences

Form factor
- EliteBook QK346US laptop Intel® Core™ i5 i5-520M:Clamshell
- EliteBook SK181UP laptop Intel® Core™ i5 i5-540M Hybrid (2-in-1):Convertible (Swivel)
Display diagonal
- EliteBook QK346US laptop Intel® Core™ i5 i5-520M:35.6 cm (14")
- EliteBook SK181UP laptop Intel® Core™ i5 i5-540M Hybrid (2-in-1):30.7 cm (12.1")
Display resolution
- EliteBook QK346US laptop Intel® Core™ i5 i5-520M:1366 x 768 pixels
- EliteBook SK181UP laptop Intel® Core™ i5 i5-540M Hybrid (2-in-1):1280 x 800 pixels
HD type
- EliteBook QK346US laptop Intel® Core™ i5 i5-520M:HD
- EliteBook SK181UP laptop Intel® Core™ i5 i5-540M Hybrid (2-in-1):Not supported
Native aspect ratio
- EliteBook QK346US laptop Intel® Core™ i5 i5-520M:16:9
- EliteBook SK181UP laptop Intel® Core™ i5 i5-540M Hybrid (2-in-1):16:10
Processor model
- EliteBook QK346US laptop Intel® Core™ i5 i5-520M:i5-520M
- EliteBook SK181UP laptop Intel® Core™ i5 i5-540M Hybrid (2-in-1):i5-540M
Processor boost frequency
- EliteBook QK346US laptop Intel® Core™ i5 i5-520M:2.93 GHz
- EliteBook SK181UP laptop Intel® Core™ i5 i5-540M Hybrid (2-in-1):3.07 GHz
Processor frequency
- EliteBook QK346US laptop Intel® Core™ i5 i5-520M:2.4 GHz
- EliteBook SK181UP laptop Intel® Core™ i5 i5-540M Hybrid (2-in-1):2.53 GHz

Side by side

Differences highlightedShow differences only

Comparison of QK346US, SK181UP
184 specifications	A HP EliteBook QK346US laptop Intel® Core™ i5 i5-520M Model QK346US View product	B HP EliteBook SK181UP laptop Intel® Core™ i5 i5-540M Hybrid (2-in-1) Model SK181UP View product
Design1 differ
Product typeKnown for one	Unknown — not stated by the source	Hybrid (2-in-1)
Product colourKnown for one	Unknown — not stated by the source	Silver
Form factorDiffers	Clamshell	Convertible (Swivel)
Housing materialKnown for one	Unknown — not stated by the source	Metal
Country of origin	China	China
Display4 differ
Display diagonalDiffers	35.6 cm (14")	30.7 cm (12.1")
Display resolutionDiffers	1366 x 768 pixels	1280 x 800 pixels
TouchscreenKnown for one	Unknown — not stated by the source	Yes
HD typeDiffers	HD	Not supported
LED backlight	Yes	Yes
Native aspect ratioDiffers	16:9	16:10
Display surface	Matt	Matt
Display brightnessKnown for one	Unknown — not stated by the source	200 cd/m²
Pixel pitchKnown for one	Unknown — not stated by the source	0.204 x 0.204 mm
Contrast ratio (typical)Known for one	Unknown — not stated by the source	400:1
Processor4 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i5	Intel® Core™ i5
Processor generation	Intel® Core™ i5	Intel® Core™ i5
Processor modelDiffers	i5-520M	i5-540M
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyDiffers	2.93 GHz	3.07 GHz
Processor frequencyDiffers	2.4 GHz	2.53 GHz
System bus rate	2.5 GT/s	2.5 GT/s
Processor cache	3 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socket	BGA 956	BGA 956
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Core i5-500 Mobile Series	Intel Core i5-500 Mobile Series
Processor codename	Arrandale	Arrandale
Bus type	DMI	DMI
FSB Parity	No	No
Stepping	C2	C2
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	18	19
Compatible processor series	Intel® Core™ i5, Intel® Core™ i7	Intel® Core™ i5, Intel® Core™ i7
ECC supported by processor	No	No
Memory1 differ
Internal memoryDiffers	2 GB	4 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 memory	8 GB	8 GB
Memory layout (slots x size)Known for one	1 x 2 GB	Unknown — not stated by the source
Storage3 differ
Total storage capacityDiffers	250 GB	160 GB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacityDiffers	250 GB	160 GB
HDD interface	SATA II	SATA II
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeKnown for one	Unknown — not stated by the source	1.8"
Card reader integrated	Yes	Yes
Compatible memory cards	MMC, SD	MMC, SD
Optical drive typeKnown for one	DVD Super Multi DL	Unknown — not stated by the source
Graphicsidentical
On-board graphics card	Yes	Yes
Discrete graphics cardKnown for one	Unknown — not stated by the source	No
Discrete graphics card modelKnown for one	Unknown — not stated by the source	Not available
Graphics card family	Intel	Intel
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)	766 MHz	766 MHz
Audioidentical
Audio system	HD	HD
Number of built-in speakers	2	2
Built-in microphone	Yes	Yes
Built-in speaker(s)Known for one	Yes	Unknown — not stated by the source
Cameraidentical
Front camera resolution (numeric)	2 MP	2 MP
Network1 differ
Networking featuresDiffers	Gigabit LAN, WLAN	Gigabit LAN
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Bluetooth	Yes	Yes
Bluetooth version	2.1+EDR	2.1+EDR
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Networking standardsKnown for one	Unknown — not stated by the source	IEEE 802.1p, IEEE 802.3, IEEE 802.3ab, IEEE 802.3x, IEEE 802.3z
Wi-FiKnown for one	Yes	Unknown — not stated by the source
Wireless technologyKnown for one	Wi-Fi, Bluetooth	Unknown — not stated by the source
Wi-Fi standardsKnown for one	802.11b, 802.11g, Wi-Fi 4 (802.11n)	Unknown — not stated by the source
Ports & interfaces4 differ
USB 2.0 ports quantity	3	3
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0	0
eSATA/USB 2.0 ports quantityDiffers	1	0
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantity	0	0
eSATA ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	0	0
DisplayPorts quantityDiffers	1	0
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) ports	1	1
Thunderbolt ports quantity	0	0
Headphone outputsDiffers	1	0
S/PDIF out port	No	No
Combo headphone/mic portKnown for one	Unknown — not stated by the source	Yes
Microphone inDiffers	Yes	No
ExpressCard slot	Yes	Yes
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	Yes	Yes
Modem (RJ-11) ports	1	1
TV-out	No	No
Performanceidentical
Motherboard chipset	Intel® QM57 Express	Intel® QM57 Express
Ambient light sensor	Yes	Yes
Keyboard1 differ
Pointing deviceDiffers	Touchpad + Scroll zone	Touchpad
Numeric keypad	No	No
Spill-resistant keyboard	Yes	Yes
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Drivers included	Yes	Yes
Processor special features2 differ
Intel® Wireless Display (Intel® WiDi)	No	No
CPU configuration (max)	1	1
Embedded options availableDiffers	Yes	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	Yes	Yes
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)	Yes	Yes
Intel® AES New Instructions (Intel® AES-NI)	Yes	Yes
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® Turbo Boost Technology	1.0	1.0
Physical Address Extension (PAE)	36 bit	36 bit
Processor ARK IDDiffers	47341	43544
Processor package size	rPGA 37.5x 37.5, BGA 34x28	rPGA 37.5x 37.5, BGA 34x28
Supported instruction sets	SSE4.1/4.2	SSE4.1/4.2
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Battery1 differ
Battery technology	Lithium-Ion (Li-Ion)	Lithium-Ion (Li-Ion)
Number of battery cells	6	6
Battery life (max)Differs	6 h	5 h
Poweridentical
DC-in jack	Yes	Yes
AC adapter powerKnown for one	65 W	Unknown — not stated by the source
AC adapter frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
AC adapter input voltageKnown for one	110 - 220 V	Unknown — not stated by the source
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Trusted Platform Module (TPM)	Yes	Yes
Operational conditionsidentical
Operating temperature (T-T)	0 - 35 °C	0 - 35 °C
Storage temperature (T-T)	-20 - 60 °C	-20 - 60 °C
Operating relative humidity (H-H)	10 - 90%	10 - 90%
Storage relative humidity (H-H)	5 - 95%	5 - 95%
Operating altitude	-15.24 - 3048 m	-15.24 - 3048 m
Non-operating altitude	-15.24 - 12192 m	-15.24 - 12192 m
Operating shockKnown for one	Unknown — not stated by the source	125 G
Non-operating shockKnown for one	Unknown — not stated by the source	200 G
Certificates1 differ
CertificationDiffers	CSA, FCC, ICES, GS, CCC, VCCI, KCC, BSMI, CE, GOST, CIT, ACPI, SABS	UL, CSA, FCC, ICES, GS, CCC, VCCI, KCC, BSMI, CE, CIT, GOST
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
Wi-Fi certifiedKnown for one	Yes	Unknown — not stated by the source
Sustainability1 differ
Sustainability certificatesDiffers	EPEAT Gold, ENERGY STAR	EPEAT Silver, ENERGY STAR
Weight & dimensions7 differ
WeightDiffers	2.12 kg	1.72 kg
WidthDiffers	335.6 mm	290 mm
DepthDiffers	236.2 mm	212 mm
HeightDiffers	31.3 mm	31.7 mm
Width (imperial)Differs	33.5 cm (13.2")	29 cm (11.4")
Depth (imperial)Differs	23.6 cm (9.3")	21.2 cm (8.35")
Height (imperial)Differs	3.12 cm (1.23")	3.18 cm (1.25")
Packaging contentidentical
AC adapter included	Yes	Yes
ManualKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
Infrared data port	No	No
Internal modem	Yes	Yes
Intel segment tagging	Enterprise	Enterprise
Supplied AC adapter type	AC	AC
Optical driveidentical
LightScribeKnown for one	Yes	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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