Product comparison · 2 laptops

HP EliteBook 8540p Notebook PC vs HP EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop

123specifications compared
17differ
106identical
62known for one product only

Key differences

Display resolution
- EliteBook 8540p Notebook PC:1366 x 768 pixels
- EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop:1600 x 900 pixels
Processor family
- EliteBook 8540p Notebook PC:Intel® Core™ i5
- EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop:Intel® Core™ i7
Processor generation
- EliteBook 8540p Notebook PC:Intel® Core™ i5
- EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop:Intel® Core™ i7
Processor model
- EliteBook 8540p Notebook PC:i5-520M
- EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop:i7-620M
Processor boost frequency
- EliteBook 8540p Notebook PC:2.93 GHz
- EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop:3.33 GHz
Processor frequency
- EliteBook 8540p Notebook PC:2.4 GHz
- EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop:2.66 GHz
Processor cache
- EliteBook 8540p Notebook PC:3 MB
- EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop:4 MB
Processor socket
- EliteBook 8540p Notebook PC:BGA 956
- EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop:BGA 1288

Side by side

Differences highlightedShow differences only

Comparison of EliteBook 8540p Notebook PC, WD921EA
185 specifications	A HP EliteBook 8540p Notebook PC View product	B HP EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop Model WD921EA View product
Designidentical
Product typeKnown for one	Unknown — not stated by the source	Laptop
Product colourKnown for one	Unknown — not stated by the source	Black, Graphite
Form factorKnown for one	Unknown — not stated by the source	Clamshell
Country of origin	China	China
Display1 differ
Display diagonal	39.6 cm (15.6")	39.6 cm (15.6")
Display resolutionDiffers	1366 x 768 pixels	1600 x 900 pixels
TouchscreenKnown for one	Unknown — not stated by the source	No
HD typeKnown for one	Unknown — not stated by the source	HD+
LED backlightKnown for one	Unknown — not stated by the source	Yes
Native aspect ratio	16:9	16:9
Display surfaceKnown for one	Unknown — not stated by the source	Matt
Processor9 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i5	Intel® Core™ i7
Processor generationDiffers	Intel® Core™ i5	Intel® Core™ i7
Processor modelDiffers	i5-520M	i7-620M
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyDiffers	2.93 GHz	3.33 GHz
Processor frequencyDiffers	2.4 GHz	2.66 GHz
System bus rate	2.5 GT/s	2.5 GT/s
Processor cacheDiffers	3 MB	4 MB
Processor cache type	Smart Cache	Smart Cache
Processor socketDiffers	BGA 956	BGA 1288
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i5-500 Mobile Series	Intel Core i7-600 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	20
ECC supported by processor	No	No
Processor technologyKnown for one	Intel Centrino 2 w/ vPro	Unknown — not stated by the source
Memory2 differ
Internal memoryDiffers	2 GB	4 GB
Internal memory typeKnown for one	Unknown — not stated by the source	DDR3-SDRAM
Memory clock speed	1333 MHz	1333 MHz
Memory slotsKnown for one	Unknown — not stated by the source	2x SO-DIMM
Maximum internal memoryDiffers	4 GB	8 GB
Memory upgradeKnown for one	8 GB	Unknown — not stated by the source
Storage1 differ
Total storage capacityDiffers	250 GB	320 GB
Storage mediaKnown for one	Unknown — not stated by the source	HDD
HDD capacityKnown for one	Unknown — not stated by the source	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
Maximum HDD capacityKnown for one	256 GB	Unknown — not stated by the source
Graphicsidentical
On-board graphics card	Yes	Yes
Graphics card familyKnown for one	Unknown — not stated by the source	Intel, NVIDIA
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
Discrete graphics cardKnown for one	Yes	Unknown — not stated by the source
Discrete graphics card modelKnown for one	NVIDIA® Quadro® NVS 5100M	Unknown — not stated by the source
Audio1 differ
Audio systemDiffers	High Definition Audio	HD
Built-in speaker(s)Known for one	Unknown — not stated by the source	Yes
Built-in microphoneKnown for one	Unknown — not stated by the source	Yes
Number of built-in speakersKnown for one	2	Unknown — not stated by the source
Audio includedKnown for one	High Definition Audio, stereo speakers, stereo headphone/line out, stereo microphone in, integrated dual-microphone array	Unknown — not stated by the source
Optical driveidentical
LightScribe	Yes	Yes
Network2 differ
Wi-FiKnown for one	Unknown — not stated by the source	Yes
Networking featuresDiffers	Intel Gigabit Network Connection (10/100/1000 NIC)	Gigabit Ethernet, WLAN
Wireless technologyDiffers	Intel 802.11a/b/g/n; HP Integrated Module with Bluetooth 2.1 Wireless Technology, Y	Yes
Wi-Fi standardsKnown for one	Unknown — not stated by the source	802.11a, 802.11b, 802.11g
Ethernet LANKnown for one	Unknown — not stated by the source	Yes
Ethernet LAN data ratesKnown for one	Unknown — not stated by the source	10,100,1000 Mbit/s
Bluetooth	Yes	Yes
Bluetooth version	2.1+EDR	2.1+EDR
Cabling technologyKnown for one	Unknown — not stated by the source	10/100/1000Base-T(X)
Ports & interfacesidentical
USB 2.0 ports quantity	2	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2	2
eSATA/USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	0
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	Unknown — not stated by the source	0
eSATA ports quantity	1	1
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	0	0
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) ports	1	1
Thunderbolt ports quantityKnown for one	Unknown — not stated by the source	0
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connector	Yes	Yes
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
TV-in portKnown for one	No	Unknown — not stated by the source
PS/2 ports quantityKnown for one	0	Unknown — not stated by the source
Parallel ports quantityKnown for one	0	Unknown — not stated by the source
Serial ports quantityKnown for one	0	Unknown — not stated by the source
I/O portsKnown for one	2 USB 2.0; 2 USB 3.0; 1 DisplayPort; 1 external VGA monitor; 1 1394a; 1 stereo microphone in; 1 stereo headphone/line-out; 1 AC power; 1 RJ-11; 1 RJ-45; 1 eSATA; 1 docking connector; 1 secondary battery connector	Unknown — not stated by the source
Performanceidentical
Motherboard chipset	Intel® QM57 Express	Intel® QM57 Express
Keyboardidentical
Pointing deviceKnown for one	Unknown — not stated by the source	Touchpad
Numeric keypadKnown for one	Unknown — not stated by the source	Yes
Spill-resistant keyboardKnown for one	Unknown — not stated by the source	Yes
Keyboard layout	QWERTY	QWERTY
Keyboard typeKnown for one	Spill-resistant keyboard with drain	Unknown — not stated by the source
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architectureKnown for one	Unknown — not stated by the source	32-bit
Bundled softwareKnown for one	HP Recovery Manager (available with Windows 7 or Vista only), HP Support Assistant (available with Windows 7 or Vista only), HP QuickLaunch Buttons Software, HP QuickLook 3, HP QuickWeb, HP Power Assistant, HP Connection Manager, HP Wireless Assistant, HP SkyRoom, Microsoft Office Professional 2007	Unknown — not stated by the source
Compatible operating systemsKnown for one	Genuine Windows Vista Enterprise 32; Genuine Windows Vista Enterprise 64; SUSE Linux Enterprise 11	Unknown — not stated by the source
Processor special features1 differ
Intel® Wireless Display (Intel® WiDi)	No	No
CPU configuration (max)	1	1
Embedded options available	Yes	Yes
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	43560
Processor codeKnown for one	Unknown — not stated by the source	SLBPE
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
Batteryidentical
Battery technologyKnown for one	Unknown — not stated by the source	Lithium-Ion (Li-Ion)
Number of battery cells	8	8
Battery capacityKnown for one	Unknown — not stated by the source	68 Wh
Poweridentical
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Trusted Platform Module (TPM)Known for one	Unknown — not stated by the source	Yes
Password protection typeKnown for one	Unknown — not stated by the source	Yes
Security management descriptionKnown for one	McAfee Security Solution, HP ProtectTools Security Manager, Enhanced Pre-Boot Security, HP SpareKey, One-Step Logon, Setup Password, DriveLock Password, TPM 1.2 Embedded Security Chip, TPM Enhanced DriveLock, HP Disk Sanitizer, Kensington Lock slot, Support for Computrace LoJack Pro for HP ProtectTo	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)	5 - 35 °C	5 - 35 °C
Operating relative humidity (H-H)	10 - 90%	10 - 90%
Storage relative humidity (H-H)	5 - 95%	5 - 95%
Sustainabilityidentical
Sustainability certificatesKnown for one	Unknown — not stated by the source	ENERGY STAR
Weight & dimensionsidentical
Weight	2.95 kg	2.95 kg
Width	373.5 mm	373.5 mm
Depth	251.5 mm	251.5 mm
HeightKnown for one	Unknown — not stated by the source	32.4 mm
Height (front)Known for one	3.24 cm	Unknown — not stated by the source
Dimensions (WxDxH)Known for one	374 x 252 x 32 mm	Unknown — not stated by the source
Packaging contentidentical
AC adapter includedKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
Infrared data port	No	No
Minimum storage drive space	160 GB	160 GB
Internal modem	Yes	Yes
Intel segment tagging	Enterprise	Enterprise
Supplied AC adapter type	AC	AC
Battery typeKnown for one	8-cell (73 WHr) Lithium-Ion Battery	Unknown — not stated by the source
Power requirementsKnown for one	External 90W HP Smart AC Adapter (travel use), HP Fast Charge 8-cell (73 WHr) Lithium-Ion Battery	Unknown — not stated by the source
Modem speedKnown for one	56 Kbit/s	Unknown — not stated by the source
Modem typeKnown for one	56K V.92	Unknown — not stated by the source
Docking solutionKnown for one	HP Docking Station, HP Advanced Docking Station, HP USB 2.0 Docking Station, HP Essential USB 2.0 Port Replicator, HP Monitor Stand, HP Basic Adjustable Stand, HP Adjustable Notebook Stand	Unknown — not stated by the source
Expansion slotsKnown for one	1 Express Card/54; 1 Smart Card Reader; 1 6-in-1 Media Card Reader	Unknown — not stated by the source
Hard driveidentical
Storage drive typeKnown for one	250 GB 7200 rpm SATA II	Unknown — not stated by the source
Storage drive controllerKnown for one	SED SATA II (7200 rpm) SATA II (7200 rpm) Solid State Drive	Unknown — not stated by the source
Videoidentical
Video card featuresKnown for one	NVIDIA NVS 5100	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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