Product comparison · 2 laptops

ASUSPRO B43J Intel® Core™ i7 i7-640M vs Lenovo X220 + ThinkPad Mini Dock Series 3

121specifications compared
49differ
72identical
44known for one product only

Key differences

Display diagonal
- ASUSPRO B43J Intel® Core™ i7 i7-640M:35.6 cm (14")
- X220 + ThinkPad Mini Dock Series 3:31.8 cm (12.5")
Processor family
- ASUSPRO B43J Intel® Core™ i7 i7-640M:Intel® Core™ i7
- X220 + ThinkPad Mini Dock Series 3:Intel® Core™ i3
Processor generation
- ASUSPRO B43J Intel® Core™ i7 i7-640M:Intel® Core™ i7
- X220 + ThinkPad Mini Dock Series 3:2nd gen Intel® Core™ i3
Processor model
- ASUSPRO B43J Intel® Core™ i7 i7-640M:i7-640M
- X220 + ThinkPad Mini Dock Series 3:i3-2350M
Processor frequency
- ASUSPRO B43J Intel® Core™ i7 i7-640M:2.8 GHz
- X220 + ThinkPad Mini Dock Series 3:2.3 GHz
System bus rate
- ASUSPRO B43J Intel® Core™ i7 i7-640M:2.5 GT/s
- X220 + ThinkPad Mini Dock Series 3:5 GT/s
Processor cache
- ASUSPRO B43J Intel® Core™ i7 i7-640M:4 MB
- X220 + ThinkPad Mini Dock Series 3:3 MB
Processor socket
- ASUSPRO B43J Intel® Core™ i7 i7-640M:BGA 1288
- X220 + ThinkPad Mini Dock Series 3:Socket 988

Side by side

Differences highlightedShow differences only

Comparison of B43J, X220 + ThinkPad Mini Dock Series 3
165 specifications	A ASUS ASUSPRO B43J Intel® Core™ i7 i7-640M Model B43J View product	B Lenovo X220 + ThinkPad Mini Dock Series 3 View product
Designidentical
Product colour	Black	Black
Form factorKnown for one	Unknown — not stated by the source	Clamshell
Display1 differ
Display diagonalDiffers	35.6 cm (14")	31.8 cm (12.5")
Display resolution	1366 x 768 pixels	1366 x 768 pixels
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
TouchscreenKnown for one	No	Unknown — not stated by the source
Processor13 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7	Intel® Core™ i3
Processor generationDiffers	Intel® Core™ i7	2nd gen Intel® Core™ i3
Processor modelDiffers	i7-640M	i3-2350M
Processor cores	2	2
Processor threads	4	4
Processor frequencyDiffers	2.8 GHz	2.3 GHz
System bus rateDiffers	2.5 GT/s	5 GT/s
Processor cacheDiffers	4 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 i7-600 Mobile Series	Intel Core i3-2300 Mobile Series
Processor codenameDiffers	Arrandale	Sandy Bridge
Bus type	DMI	DMI
FSB Parity	No	No
SteppingDiffers	K0	J1
Thermal Design Power (TDP)	35 W	35 W
TjunctionDiffers	105 °C	85 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurationsDiffers	1x16	1x16, 2x8, 1x8+2x4
PCI Express slots version	2.0	2.0
CPU multiplier (bus/core ratio)Differs	21	23
ECC supported by processor	No	No
Processor boost frequencyKnown for one	3.46 GHz	Unknown — not stated by the source
Number of Processing Die TransistorsKnown for one	382 M	Unknown — not stated by the source
Processing Die sizeKnown for one	81 mm²	Unknown — not stated by the source
Memoryidentical
Internal memory	4 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speedKnown for one	Unknown — not stated by the source	1333 MHz
Memory slots	2x SO-DIMM	2x SO-DIMM
Memory slots (available)Known for one	Unknown — not stated by the source	1
Maximum internal memory	8 GB	8 GB
Storage2 differ
Total storage capacity	320 GB	320 GB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacity	320 GB	320 GB
HDD interface	SATA	SATA
HDD speedKnown for one	Unknown — not stated by the source	5400 RPM
Optical drive typeDiffers	DVD Super Multi	No
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	Memory Stick (MS), MMC, MS PRO, SD, xD	SD
Graphics4 differ
On-board graphics card	Yes	Yes
Graphics card familyDiffers	ATI	Intel
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® HD Graphics	Intel® HD Graphics 3000
On-board graphics card base frequencyDiffers	500 MHz	650 MHz
On-board graphics card dynamic frequency (max)Differs	766 MHz	1150 MHz
On-board graphics card IDKnown for one	Unknown — not stated by the source	0x116
Discrete graphics cardKnown for one	Yes	Unknown — not stated by the source
Discrete graphics card modelKnown for one	AMD Mobility Radeon HD 5470	Unknown — not stated by the source
Discrete graphics card memoryKnown for one	0.512 GB	Unknown — not stated by the source
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	HDA
Number of built-in speakersKnown for one	Unknown — not stated by the source	2
Speaker powerKnown for one	Unknown — not stated by the source	2 W
Built-in microphone	Yes	Yes
Optical driveidentical
LightScribeKnown for one	Unknown — not stated by the source	No
Network1 differ
Wi-Fi	Yes	Yes
Wireless technology	Wi-Fi	Wi-Fi
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	Yes	Yes
BluetoothDiffers	Yes	No
Integrated 4G WiMAXKnown for one	Unknown — not stated by the source	Yes
Top Wi-Fi standardKnown for one	Wi-Fi 4 (802.11n)	Unknown — not stated by the source
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
Bluetooth versionKnown for one	2.1+EDR	Unknown — not stated by the source
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers	2	3
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 quantity	0	0
eSATA ports quantityDiffers	1	0
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityDiffers	1	0
DisplayPorts quantity	1	1
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) ports	0	0
Thunderbolt ports quantity	0	0
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connectorDiffers	Yes	No
ExpressCard slot	Yes	Yes
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
TV-outKnown for one	Unknown — not stated by the source	No
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	0	Unknown — not stated by the source
Modem (RJ-11) portsKnown for one	1	Unknown — not stated by the source
Keyboard1 differ
Pointing deviceDiffers	Touchpad	Trackpad
Numeric keypad	No	No
Windows keysKnown for one	Unknown — not stated by the source	Yes
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Processor special features17 differ
Intel® Wireless Display (Intel® WiDi)Differs	No	Yes
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithographyDiffers	45 nm	32 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video TechnologyDiffers	Yes	No
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 Identity Protection Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel Rapid Storage Technology	No	No
Intel Trusted Execution TechnologyDiffers	Yes	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)Differs	Yes	No
Intel® AES New Instructions (Intel® AES-NI)Differs	Yes	No
Intel® Anti-Theft Technology (Intel® AT)Differs	No	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Differs	Yes	No
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)Known for one	Unknown — not stated by the source	Yes
Intel® InTru™ 3D TechnologyDiffers	No	Yes
Intel® Insider™Differs	No	Yes
Intel® My WiFi Technology (Intel® MWT)Differs	No	Yes
Intel® Quick Sync Video TechnologyDiffers	No	Yes
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Intel® Turbo Boost TechnologyDiffers	1.0	No
Processor ARK IDDiffers	49666	53438
Processor codeDiffers	SLBTN	SR0DN
Processor package sizeDiffers	rPGA 37.5x 37.5, BGA 34x28	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)
Supported instruction setsDiffers	SSE4.1/4.2	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Physical Address Extension (PAE)Known for one	36 bit	Unknown — not stated by the source
Batteryidentical
Battery technologyKnown for one	Unknown — not stated by the source	Lithium-Ion (Li-Ion)
Number of battery cellsKnown for one	Unknown — not stated by the source	6
Battery capacityKnown for one	47 Wh	Unknown — not stated by the source
Poweridentical
AC adapter powerKnown for one	Unknown — not stated by the source	90 W
AC adapter frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
AC adapter input voltageKnown for one	Unknown — not stated by the source	100 - 240 V
DC-in jack	Yes	Yes
Security1 differ
Cable lock slotDiffers	No	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Fingerprint readerKnown for one	Unknown — not stated by the source	Yes
Certificatesidentical
Wi-Fi certifiedKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions5 differ
WeightDiffers	2.48 kg	1.3 kg
WidthDiffers	350 mm	305 mm
DepthDiffers	245 mm	206.5 mm
Height (front)Differs	3.3 mm	1.9 cm
Height (rear)Differs	3.5 mm	3.46 cm
Packaging contentidentical
AC adapter includedKnown for one	Unknown — not stated by the source	Yes
Remote control includedKnown for one	No	Unknown — not stated by the source
Other featuresidentical
Infrared data port	No	No
Power supply typeKnown for one	Unknown — not stated by the source	AC/DC
Supplied AC adapter type	AC	AC
TV tuner integratedKnown for one	No	Unknown — not stated by the source
Intel segment taggingKnown for one	Enterprise, Professional	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.

More laptop comparisons

All laptop comparisons