Product comparison · 2 laptops

ASUS U3S-A1W laptop Intel® Core™2 Duo T7500 vs ASUS X51R-AG015A laptop Intel® Celeron® M 520

96specifications compared
42differ
54identical
45known for one product only

Key differences

Product colour
- U3S-A1W laptop Intel® Core™2 Duo T7500:White
- X51R-AG015A laptop Intel® Celeron® M 520:Silver
Display diagonal
- U3S-A1W laptop Intel® Core™2 Duo T7500:33.8 cm (13.3")
- X51R-AG015A laptop Intel® Celeron® M 520:39.1 cm (15.4")
Processor family
- U3S-A1W laptop Intel® Core™2 Duo T7500:Intel® Core™2 Duo
- X51R-AG015A laptop Intel® Celeron® M 520:Intel® Celeron® M
Processor model
- U3S-A1W laptop Intel® Core™2 Duo T7500:T7500
- X51R-AG015A laptop Intel® Celeron® M 520:520
Processor cores
- U3S-A1W laptop Intel® Core™2 Duo T7500:2
- X51R-AG015A laptop Intel® Celeron® M 520:1
Processor frequency
- U3S-A1W laptop Intel® Core™2 Duo T7500:2.2 GHz
- X51R-AG015A laptop Intel® Celeron® M 520:2.8 GHz
Processor cache
- U3S-A1W laptop Intel® Core™2 Duo T7500:4 MB
- X51R-AG015A laptop Intel® Celeron® M 520:1 MB
Processor socket
- U3S-A1W laptop Intel® Core™2 Duo T7500:Socket 478
- X51R-AG015A laptop Intel® Celeron® M 520:LGA 775 (Socket T)

Side by side

Differences highlightedShow differences only

Comparison of U3S-A1W, X51R-AG015A
141 specifications	A ASUS U3S-A1W laptop Intel® Core™2 Duo T7500 Model U3S-A1W View product	B ASUS X51R-AG015A laptop Intel® Celeron® M 520 Model X51R-AG015A View product
Design1 differ
Product colourDiffers	White	Silver
Display1 differ
Display diagonalDiffers	33.8 cm (13.3")	39.1 cm (15.4")
Display resolution	1280 x 800 pixels	1280 x 800 pixels
Native aspect ratio	16:10	16:10
Processor13 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™2 Duo	Intel® Celeron® M
Processor modelDiffers	T7500	520
Processor coresDiffers	2	1
Processor threads	2	2
Processor frequencyDiffers	2.2 GHz	2.8 GHz
Processor cacheDiffers	4 MB	1 MB
Processor cache type	L2	L2
Processor front side bus	800 MHz	800 MHz
Processor socketDiffers	Socket 478	LGA 775 (Socket T)
Processor lithographyDiffers	65 nm	90 nm
Processor operating modesDiffers	64-bit	32-bit
Processor seriesKnown for one	Intel Core 2 Duo T7000 Series	Unknown — not stated by the source
Processor codenameDiffers	Merom	Prescott
Bus type	FSB	FSB
FSB Parity	No	No
SteppingKnown for one	E1	Unknown — not stated by the source
Thermal Design Power (TDP)Differs	35 W	84 W
Tjunction	100 °C	100 °C
Number of Processing Die TransistorsDiffers	291 M	125 M
Processing Die sizeDiffers	143 mm²	112 mm²
CPU multiplier (bus/core ratio)Differs	11	12
ECC supported by processorKnown for one	No	Unknown — not stated by the source
TcaseKnown for one	Unknown — not stated by the source	67.7 °C
Processor core voltage (AC)Known for one	Unknown — not stated by the source	0.95 - 1.30 V
Memoryidentical
Internal memory	1 GB	1 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory clock speed	667 MHz	667 MHz
Memory slotsKnown for one	Unknown — not stated by the source	2x SO-DIMM
Maximum internal memoryKnown for one	Unknown — not stated by the source	2 GB
Storage3 differ
Total storage capacityDiffers	160 GB	80 GB
HDD speed	5400 RPM	5400 RPM
Optical drive typeDiffers	No	DVD Super Multi
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	Memory Stick (MS), MiniSD, MMC, MS PRO, MS PRO Duo, SD, xD	Memory Stick (MS), MMC, MS PRO, SD
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
HDD interfaceKnown for one	Unknown — not stated by the source	SATA
Graphics2 differ
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	NVIDIA GeForce 8400M G	Intel GMA X300
Discrete graphics card memoryKnown for one	0.125 GB	Unknown — not stated by the source
Graphics card familyDiffers	NVIDIA	AMD
Maximum graphics card memoryKnown for one	0.67 GB	Unknown — not stated by the source
Audioidentical
Audio system	Azalia	Azalia
Audio system full duplex	Yes	Yes
Audio system direct 3D sound	Yes	Yes
Speaker powerKnown for one	Unknown — not stated by the source	1.5 W
Cameraidentical
Front camera resolution (numeric)Known for one	1.3 MP	Unknown — not stated by the source
Front cameraKnown for one	Unknown — not stated by the source	No
Network2 differ
Wi-Fi	Yes	Yes
Networking featuresDiffers	Gigabit Ethernet	Fast Ethernet, WLAN
BluetoothDiffers	Yes	No
Bluetooth versionKnown for one	2.0+EDR	Unknown — not stated by the source
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Wireless technologyKnown for one	Unknown — not stated by the source	Wi-Fi
Ports & interfaces6 differ
USB 2.0 ports quantityDiffers	3	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0	0
eSATA ports quantityDiffers	1	0
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityDiffers	1	0
DisplayPorts quantity	0	0
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) portsDiffers	1	0
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connector	No	No
ExpressCard slot	No	No
CardBus PCMCIA slots quantityDiffers	0	1
CardBus PCMCIA slot typeDiffers	No	Type II
SmartCard slot	No	No
Modem (RJ-11) ports	1	1
TV-in port	No	No
PS/2 ports quantity	0	0
Parallel ports quantity	0	0
Serial ports quantity	0	0
TV-outKnown for one	Unknown — not stated by the source	No
Keyboardidentical
Pointing device	Touchpad	Touchpad
Keyboard number of keysKnown for one	Unknown — not stated by the source	88
Software2 differ
Operating system installedDiffers	Windows Vista Business	Windows Vista Home Basic
Trial softwareDiffers	Norton Internet Security 2007	Symantec Norton Internet Security 2006
Processor special features9 differ
Intel® Wireless Display (Intel® WiDi)Known for one	No	Unknown — not stated by the source
Embedded options availableDiffers	Yes	No
Enhanced Intel SpeedStep TechnologyDiffers	Yes	No
Execute Disable Bit	Yes	Yes
Idle StatesDiffers	Yes	No
Intel 64	Yes	Yes
Intel Clear Video TechnologyKnown for one	No	Unknown — not stated by the source
Intel Demand Based Switching	No	No
Intel Dual Display Capable TechnologyKnown for one	No	Unknown — not stated by the source
Intel Enhanced Halt StateDiffers	Yes	No
Intel FDI TechnologyKnown for one	No	Unknown — not stated by the source
Intel Fast Memory AccessKnown for one	No	Unknown — not stated by the source
Intel Flex Memory AccessKnown for one	No	Unknown — not stated by the source
Intel Rapid Storage TechnologyKnown for one	No	Unknown — not stated by the source
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)Known for one	No	Unknown — not stated by the source
Intel Virtualization Technology (VT-x)Differs	Yes	No
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	No	Unknown — not stated by the source
Intel® AES New Instructions (Intel® AES-NI)Known for one	No	Unknown — not stated by the source
Intel® Anti-Theft Technology (Intel® AT)Known for one	No	Unknown — not stated by the source
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	No	Unknown — not stated by the source
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	No	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Intel® InTru™ 3D TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Insider™Known for one	No	Unknown — not stated by the source
Intel® My WiFi Technology (Intel® MWT)Known for one	No	Unknown — not stated by the source
Intel® Quick Sync Video TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Turbo Boost Technology	No	No
Processor ARK IDDiffers	29761	27460
Processor package sizeDiffers	35 x 35 mm	37.5 mm
Thermal Monitoring TechnologiesDiffers	No	Yes
Conflict-Free processor	No	No
Power2 differ
AC adapter powerDiffers	90 W	65 W
AC adapter input voltage	100 - 240 V	100 - 240 V
AC adapter output currentDiffers	4.74 A	3.42 A
AC adapter output voltage	19 V	19 V
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Trusted Platform Module (TPM)Known for one	Yes	Unknown — not stated by the source
HDD user password	Yes	Yes
Password protection typeKnown for one	Unknown — not stated by the source	BIOS
Weight & dimensions1 differ
WeightDiffers	1.75 kg	2.8 kg
WidthKnown for one	318 mm	Unknown — not stated by the source
DepthKnown for one	243 mm	Unknown — not stated by the source
Height (front)Known for one	2.22 cm	Unknown — not stated by the source
Height (rear)Known for one	3.22 cm	Unknown — not stated by the source
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	365 x 264 x 35.5 mm
Packaging contentidentical
AC adapter included	Yes	Yes
Other featuresidentical
Infrared data port	No	No
Internal modem	Yes	Yes
TV tuner integrated	No	No
Modem speed	56 Kbit/s	56 Kbit/s
Modem typeKnown for one	V.92	Unknown — not stated by the source
Supplied AC adapter type	AC	AC
Performanceidentical
Motherboard chipsetKnown for one	Unknown — not stated by the source	ATI Radeon Xpress 1100

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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