Product comparison · 2 laptops

ASUSPRO B23E-XS71 laptop Intel® Core™ i7 i7-2640M vs ASUS U46SM-DS51 laptop Intel® Core™ i5 i5-2450M

142specifications compared
38differ
104identical
40known for one product only

Key differences

Product colour
- ASUSPRO B23E-XS71 laptop Intel® Core™ i7 i7-2640M:Black
- U46SM-DS51 laptop Intel® Core™ i5 i5-2450M:Silver
Display diagonal
- ASUSPRO B23E-XS71 laptop Intel® Core™ i7 i7-2640M:31.8 cm (12.5")
- U46SM-DS51 laptop Intel® Core™ i5 i5-2450M:35.6 cm (14")
LED backlight
- ASUSPRO B23E-XS71 laptop Intel® Core™ i7 i7-2640M:Yes
- U46SM-DS51 laptop Intel® Core™ i5 i5-2450M:No
Processor family
- ASUSPRO B23E-XS71 laptop Intel® Core™ i7 i7-2640M:Intel® Core™ i7
- U46SM-DS51 laptop Intel® Core™ i5 i5-2450M:Intel® Core™ i5
Processor generation
- ASUSPRO B23E-XS71 laptop Intel® Core™ i7 i7-2640M:2nd gen Intel® Core™ i7
- U46SM-DS51 laptop Intel® Core™ i5 i5-2450M:2nd gen Intel® Core™ i5
Processor model
- ASUSPRO B23E-XS71 laptop Intel® Core™ i7 i7-2640M:i7-2640M
- U46SM-DS51 laptop Intel® Core™ i5 i5-2450M:i5-2450M
Processor boost frequency
- ASUSPRO B23E-XS71 laptop Intel® Core™ i7 i7-2640M:3.5 GHz
- U46SM-DS51 laptop Intel® Core™ i5 i5-2450M:3.1 GHz
Processor frequency
- ASUSPRO B23E-XS71 laptop Intel® Core™ i7 i7-2640M:2.8 GHz
- U46SM-DS51 laptop Intel® Core™ i5 i5-2450M:2.5 GHz

Side by side

Differences highlightedShow differences only

Comparison of B23E-XS71, U46SM-DS51
182 specifications	A ASUS ASUSPRO B23E-XS71 laptop Intel® Core™ i7 i7-2640M Model B23E-XS71 View product	B ASUS U46SM-DS51 laptop Intel® Core™ i5 i5-2450M Model U46SM-DS51 View product
Design1 differ
Product colourDiffers	Black	Silver
Form factor	Clamshell	Clamshell
Housing materialKnown for one	Aluminium	Unknown — not stated by the source
Display2 differ
Display diagonalDiffers	31.8 cm (12.5")	35.6 cm (14")
Display resolution	1366 x 768 pixels	1366 x 768 pixels
TouchscreenKnown for one	No	Unknown — not stated by the source
HD typeKnown for one	HD	Unknown — not stated by the source
LED backlightDiffers	Yes	No
Native aspect ratio	16:9	16:9
Processor10 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7	Intel® Core™ i5
Processor generationDiffers	2nd gen Intel® Core™ i7	2nd gen Intel® Core™ i5
Processor modelDiffers	i7-2640M	i5-2450M
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyDiffers	3.5 GHz	3.1 GHz
Processor frequencyDiffers	2.8 GHz	2.5 GHz
System bus rate	5 GT/s	5 GT/s
Processor cacheDiffers	4 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i7-2600 Mobile Series	Intel Core i5-2400 Mobile Series
Processor codename	Sandy Bridge	Sandy Bridge
Bus type	DMI	DMI
FSB Parity	No	No
Stepping	J1	J1
Thermal Design Power (TDP)	35 W	35 W
TjunctionDiffers	100 C	100 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurationsDiffers	1x16, 2x8	1x16, 2x8, 1x8+2x4
PCI Express slots version	2.0	2.0
CPU multiplier (bus/core ratio)Differs	28	25
ECC supported by processor	No	No
Memory1 differ
Internal memoryDiffers	4 GB	8 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
Storage3 differ
Total storage capacityDiffers	500 GB	750 GB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacityDiffers	500 GB	750 GB
HDD interface	SATA	SATA
HDD size	2.5"	2.5"
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	Memory Stick (MS), MMC, MS PRO, SD, xD	Memory Stick (MS), MMC, MS PRO, SD
HDD speedKnown for one	Unknown — not stated by the source	5400 RPM
Optical drive typeKnown for one	Unknown — not stated by the source	DVD Super Multi
Graphics3 differ
On-board graphics card	Yes	Yes
Discrete graphics cardDiffers	No	Yes
Discrete graphics card modelDiffers	Not available	NVIDIA® GeForce® GT 630M
Graphics card familyDiffers	Intel	Intel, NVIDIA
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics 3000	Intel® HD Graphics 3000
On-board graphics card base frequency	650 MHz	650 MHz
On-board graphics card dynamic frequency (max)	1300 MHz	1300 MHz
On-board graphics card ID	0x116	0x116
Discrete graphics memory typeKnown for one	Unknown — not stated by the source	GDDR3
Number of discrete graphics cardsKnown for one	Unknown — not stated by the source	1
Audioidentical
Built-in speaker(s)	Yes	Yes
Built-in microphone	Yes	Yes
Audio systemKnown for one	Unknown — not stated by the source	SonicFocus
Cameraidentical
Front cameraKnown for one	Yes	Unknown — not stated by the source
Front camera resolution (numeric)Known for one	Unknown — not stated by the source	0.3 MP
Networkidentical
Wi-Fi	Yes	Yes
Networking featuresKnown for one	Gigabit Ethernet, WLAN	Unknown — not stated by the source
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Wi-Fi data rate (max)Known for one	300 Mbit/s	Unknown — not stated by the source
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Bluetooth	Yes	Yes
Bluetooth version	3.0+HS	3.0+HS
Integrated 4G WiMAX	Yes	Yes
Cabling technologyKnown for one	Unknown — not stated by the source	10/100/1000Base-T(X)
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers	1	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	1	1
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantityKnown for one	0	Unknown — not stated by the source
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityKnown for one	0	Unknown — not stated by the source
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityKnown for one	0	Unknown — not stated by the source
Micro-USB 2.0 ports quantityKnown for one	0	Unknown — not stated by the source
Micro-USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	0	Unknown — not stated by the source
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	1	1
DisplayPorts quantity	0	0
Mini DisplayPorts quantityKnown for one	0	Unknown — not stated by the source
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) ports	0	0
Thunderbolt ports quantity	0	0
Thunderbolt 2 ports quantityKnown for one	0	Unknown — not stated by the source
Thunderbolt 3 ports quantityKnown for one	0	Unknown — not stated by the source
Mini HDMI ports quantityKnown for one	0	Unknown — not stated by the source
Micro HDMI ports quantityKnown for one	0	Unknown — not stated by the source
Mini VGA ports quantityKnown for one	0	Unknown — not stated by the source
Headphone outputs	1	1
S/PDIF out port	Yes	Yes
Microphone in	Yes	Yes
ExpressCard slotDiffers	Yes	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slotDiffers	Yes	No
TV-outKnown for one	No	Unknown — not stated by the source
Line-inKnown for one	Unknown — not stated by the source	Yes
Headphone connectivityKnown for one	Unknown — not stated by the source	3.5 mm
Microphone connectivityKnown for one	Unknown — not stated by the source	3.5 mm
Performance1 differ
Motherboard chipsetDiffers	Intel® QM67 Express	Intel® HM65 Express
Keyboardidentical
Pointing deviceKnown for one	Touchpad	Unknown — not stated by the source
Numeric keypad	No	No
Windows keys	Yes	Yes
Software1 differ
Operating system installedDiffers	Windows 7 Professional	Windows 7 Home Premium
Operating system architecture	64-bit	64-bit
Processor special features5 differ
Intel® Wireless Display (Intel® WiDi)	Yes	Yes
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithography	32 nm	32 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	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 version	1.00	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)	Yes	Yes
Intel® Anti-Theft Technology (Intel® AT)	Yes	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® InTru™ 3D Technology	Yes	Yes
Intel® Insider™	Yes	Yes
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Smart Cache	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK IDDiffers	53464	53452
Processor codeDiffers	SR03R	SR04Z
Processor package sizeDiffers	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)	37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Battery2 differ
Number of battery cellsDiffers	3	8
Battery capacityDiffers	48 Wh	5900 mAh
Battery life (max)Known for one	Unknown — not stated by the source	10 h
Power2 differ
AC adapter powerDiffers	75 W	90 W
AC adapter frequency	50 - 60 Hz	50 - 60 Hz
AC adapter input voltage	100 - 240 V	100 - 240 V
AC adapter output currentDiffers	3.95 A	4.74 A
AC adapter output voltage	19 V	19 V
DC-in jack	Yes	Yes
Security1 differ
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Password protection typeDiffers	BIOS, HDD	BIOS, HDD, User
HDD user password	Yes	Yes
Certificatesidentical
CertificationKnown for one	UL, TUV, CE, FCC, BSMI, CCC, CB, EPEAT, EU	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for one	ENERGY STAR	Unknown — not stated by the source
Weight & dimensions2 differ
WeightKnown for one	1.55 kg	Unknown — not stated by the source
WidthDiffers	305 mm	245 mm
DepthDiffers	206 mm	333 mm
HeightKnown for one	28 mm	Unknown — not stated by the source
Height (front)Known for one	Unknown — not stated by the source	2.46 cm
Height (rear)Known for one	Unknown — not stated by the source	2.7 cm
Packaging contentidentical
AC adapter included	Yes	Yes
Cables includedKnown for one	AC	Unknown — not stated by the source
Other featuresidentical
Infrared data port	No	No
3DKnown for one	No	Unknown — not stated by the source
Intel segment taggingKnown for one	Enterprise, Professional	Unknown — not stated by the source
Supplied AC adapter type	AC	AC
Optical driveidentical
LightScribeKnown 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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