Product comparison · 2 laptops

HP EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop vs HP EliteBook WD928EA Intel® Core™ i5 i5-540M

153specifications compared
18differ
135identical
14known for one product only

Key differences

Display resolution
- EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop:1600 x 900 pixels
- EliteBook WD928EA Intel® Core™ i5 i5-540M:1920 x 1080 pixels
Processor family
- EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop:Intel® Core™ i7
- EliteBook WD928EA Intel® Core™ i5 i5-540M:Intel® Core™ i5
Processor generation
- EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop:Intel® Core™ i7
- EliteBook WD928EA Intel® Core™ i5 i5-540M:Intel® Core™ i5
Processor model
- EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop:i7-620M
- EliteBook WD928EA Intel® Core™ i5 i5-540M:i5-540M
Processor boost frequency
- EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop:3.33 GHz
- EliteBook WD928EA Intel® Core™ i5 i5-540M:3.07 GHz
Processor frequency
- EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop:2.66 GHz
- EliteBook WD928EA Intel® Core™ i5 i5-540M:2.53 GHz
Processor cache
- EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop:4 MB
- EliteBook WD928EA Intel® Core™ i5 i5-540M:3 MB
Processor socket
- EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop:BGA 1288
- EliteBook WD928EA Intel® Core™ i5 i5-540M:BGA 956

Side by side

Differences highlightedShow differences only

Comparison of WD921EA, WD928EA
167 specifications	A HP EliteBook WD921EA Intel® Core™ i7 i7-620M Laptop Model WD921EA View product	B HP EliteBook WD928EA Intel® Core™ i5 i5-540M Model WD928EA View product
Designidentical
Product colour	Black, Graphite	Black, Graphite
Form factor	Clamshell	Clamshell
Country of origin	China	China
Product typeKnown for one	Laptop	Unknown — not stated by the source
Display1 differ
Display diagonal	39.6 cm (15.6")	39.6 cm (15.6")
Display resolutionDiffers	1600 x 900 pixels	1920 x 1080 pixels
Touchscreen	No	No
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surface	Matt	Matt
HD typeKnown for one	HD+	Unknown — not stated by the source
Processor9 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7	Intel® Core™ i5
Processor generationDiffers	Intel® Core™ i7	Intel® Core™ i5
Processor modelDiffers	i7-620M	i5-540M
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyDiffers	3.33 GHz	3.07 GHz
Processor frequencyDiffers	2.66 GHz	2.53 GHz
System bus rate	2.5 GT/s	2.5 GT/s
Processor cacheDiffers	4 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socketDiffers	BGA 1288	BGA 956
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i7-600 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	20	19
ECC supported by processor	No	No
Memory1 differ
Internal memory	4 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1333 MHz	1333 MHz
Memory layout (slots x size)Known for one	Unknown — not stated by the source	2 x 2 GB
Maximum internal memoryDiffers	8 GB	32 GB
Memory slotsKnown for one	2x SO-DIMM	Unknown — not stated by the source
Storage2 differ
Total storage capacityDiffers	320 GB	500 GB
Storage media	HDD	HDD
HDD capacityDiffers	320 GB	500 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
Graphicsidentical
On-board graphics card	Yes	Yes
Discrete graphics cardKnown for one	Unknown — not stated by the source	Yes
Discrete graphics card modelKnown for one	Unknown — not stated by the source	NVIDIA® Quadro® FX 880M
Graphics card family	Intel, NVIDIA	Intel, NVIDIA
Discrete graphics memory typeKnown for one	Unknown — not stated by the source	GDDR3
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
Built-in speaker(s)	Yes	Yes
Number of built-in speakersKnown for one	Unknown — not stated by the source	2
Built-in microphone	Yes	Yes
Optical driveidentical
LightScribe	Yes	Yes
Networkidentical
Wi-Fi	Yes	Yes
Networking features	Gigabit Ethernet, WLAN	Gigabit Ethernet, WLAN
Wireless technology	Yes	Yes
Wi-Fi standards	802.11a, 802.11b, 802.11g	802.11a, 802.11b, 802.11g
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)
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 quantity	0	0
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantity	0	0
eSATA ports quantity	1	1
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	0	0
DisplayPorts quantity	1	1
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) ports	1	1
Thunderbolt ports quantity	0	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
Performanceidentical
Motherboard chipset	Intel® QM57 Express	Intel® QM57 Express
Keyboard1 differ
Pointing deviceDiffers	Touchpad	Touchpad + Scroll zone
Numeric keypad	Yes	Yes
Spill-resistant keyboard	Yes	Yes
Full-size keyboardKnown for one	Unknown — not stated by the source	Yes
Keyboard layout	QWERTY	QWERTY
Software1 differ
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architectureDiffers	32-bit	64-bit
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	43560	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
Processor codeKnown for one	SLBPE	Unknown — not stated by the source
Batteryidentical
Battery technology	Lithium-Ion (Li-Ion)	Lithium-Ion (Li-Ion)
Number of battery cells	8	8
Battery capacityKnown for one	68 Wh	Unknown — not stated by the source
Poweridentical
AC adapter powerKnown for one	Unknown — not stated by the source	90 W
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Trusted Platform Module (TPM)	Yes	Yes
Password protection type	Yes	Yes
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 certificates	ENERGY STAR	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
Height	32.4 mm	32.4 mm
Packaging contentidentical
AC adapter included	Yes	Yes
Other features1 differ
Infrared data port	No	No
Minimum storage drive spaceDiffers	160 GB	250 GB
Internal modem	Yes	Yes
Modem speedKnown for one	Unknown — not stated by the source	56 Kbit/s
Modem typeKnown for one	Unknown — not stated by the source	v.92
Intel segment tagging	Enterprise	Enterprise
Supplied AC adapter type	AC	AC

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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