Product comparison · 2 laptops

Acer Aspire One AO751 vs Lenovo ThinkPad X201s Intel® Core™ i7 i7-640LM

82specifications compared
52differ
30identical
62known for one product only

Key differences

Product colour
- Aspire One AO751:White
- ThinkPad X201s Intel® Core™ i7 i7-640LM:Black
Display diagonal
- Aspire One AO751:26.9 cm (10.6")
- ThinkPad X201s Intel® Core™ i7 i7-640LM:30.7 cm (12.1")
Display resolution
- Aspire One AO751:1366 x 768 pixels
- ThinkPad X201s Intel® Core™ i7 i7-640LM:1440 x 900 pixels
Native aspect ratio
- Aspire One AO751:16:9
- ThinkPad X201s Intel® Core™ i7 i7-640LM:16:10
Processor family
- Aspire One AO751:Intel Atom®
- ThinkPad X201s Intel® Core™ i7 i7-640LM:Intel® Core™ i7
Processor model
- Aspire One AO751:Z520
- ThinkPad X201s Intel® Core™ i7 i7-640LM:i7-640LM
Processor cores
- Aspire One AO751:1
- ThinkPad X201s Intel® Core™ i7 i7-640LM:2
Processor threads
- Aspire One AO751:2
- ThinkPad X201s Intel® Core™ i7 i7-640LM:4

Side by side

Differences highlightedShow differences only

Comparison of Aspire One AO751, X201s
144 specifications	A Acer Aspire One AO751 View product	B Lenovo ThinkPad X201s Intel® Core™ i7 i7-640LM Model X201s View product
Design1 differ
Product colourDiffers	White	Black
Product typeKnown for one	Netbook	Unknown — not stated by the source
Display3 differ
Display diagonalDiffers	26.9 cm (10.6")	30.7 cm (12.1")
Display resolutionDiffers	1366 x 768 pixels	1440 x 900 pixels
LED backlightKnown for one	Unknown — not stated by the source	Yes
Native aspect ratioDiffers	16:9	16:10
Display brightnessKnown for one	Unknown — not stated by the source	250 cd/m²
Contrast ratio (typical)Known for one	Unknown — not stated by the source	300:1
Processor19 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel Atom®	Intel® Core™ i7
Processor generationKnown for one	Unknown — not stated by the source	Intel® Core™ i7
Processor modelDiffers	Z520	i7-640LM
Processor coresDiffers	1	2
Processor threadsDiffers	2	4
Processor boost frequencyKnown for one	Unknown — not stated by the source	2.93 GHz
Processor frequencyDiffers	1.33 GHz	2.13 GHz
System bus rateKnown for one	Unknown — not stated by the source	2.5 GT/s
Processor cacheDiffers	0.512 MB	4 MB
Processor cache typeDiffers	L2	Smart Cache
Processor socketDiffers	PBGA441	BGA 1288
Processor lithographyDiffers	45 nm	32 nm
Processor operating modesDiffers	32-bit	64-bit
Processor seriesDiffers	Intel Atom Z500 Series	Intel Core i7-600 Mobile Series
Processor codenameDiffers	Silverthorne	Arrandale
Bus typeDiffers	FSB	DMI
FSB Parity	No	No
SteppingDiffers	C0	C2
Thermal Design Power (TDP)Differs	2 W	25 W
TjunctionDiffers	90 °C	105 °C
Maximum number of PCI Express lanesKnown for one	Unknown — not stated by the source	16
PCI Express configurationsKnown for one	Unknown — not stated by the source	1x16
PCI Express slots versionKnown for one	Unknown — not stated by the source	2.0
Number of Processing Die TransistorsDiffers	47 M	382 M
Processing Die sizeDiffers	26 mm²	81 mm²
CPU multiplier (bus/core ratio)Differs	10	16
ECC supported by processor	No	No
Processor front side busKnown for one	533 MHz	Unknown — not stated by the source
Scenario Design Power (SDP)Known for one	0.96 W	Unknown — not stated by the source
Memory3 differ
Internal memoryDiffers	1 GB	3 GB
Internal memory typeDiffers	DDR2-SDRAM	DDR3-SDRAM
Memory clock speedKnown for one	Unknown — not stated by the source	1066 MHz
Memory layout (slots x size)Known for one	Unknown — not stated by the source	1 x 1 + 1 x 2 GB
Memory slotsKnown for one	Unknown — not stated by the source	2x SO-DIMM
Maximum internal memoryDiffers	2 GB	8 GB
Storageidentical
Total storage capacityKnown for one	Unknown — not stated by the source	320 GB
HDD interfaceKnown for one	Unknown — not stated by the source	SATA
HDD speedKnown for one	Unknown — not stated by the source	7200 RPM
Optical drive typeKnown for one	Unknown — not stated by the source	No
Card reader integrated	Yes	Yes
Compatible memory cardsKnown for one	Unknown — not stated by the source	Memory Stick (MS), MMC, MS PRO, SD, SDHC
HDD capacityKnown for one	160 GB	Unknown — not stated by the source
Graphicsidentical
On-board graphics cardKnown for one	Unknown — not stated by the source	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	Intel® HD Graphics
Graphics card familyKnown for one	Unknown — not stated by the source	Intel
On-board graphics card familyKnown for one	Unknown — not stated by the source	Intel® HD Graphics
On-board graphics card modelKnown for one	Unknown — not stated by the source	Intel® HD Graphics
On-board graphics card base frequencyKnown for one	Unknown — not stated by the source	266 MHz
On-board graphics card dynamic frequency (max)Known for one	Unknown — not stated by the source	566 MHz
Graphics cardKnown for one	GMA 500	Unknown — not stated by the source
Audioidentical
Audio system	High Definition Audio	High Definition Audio
Number of built-in speakersKnown for one	2	Unknown — not stated by the source
Built-in microphoneKnown for one	Yes	Unknown — not stated by the source
Network2 differ
Wi-Fi	Yes	Yes
Networking featuresDiffers	Fast Ethernet, WLAN	Gigabit Ethernet
Ethernet LAN	Yes	Yes
Bluetooth	Yes	Yes
Bluetooth versionDiffers	2.0+EDR	2.1+EDR
Wireless technologyKnown for one	802.11b/g	Unknown — not stated by the source
Ports & interfacesidentical
USB 2.0 ports quantity	3	3
Ethernet LAN (RJ-45) ports	1	1
DVI portKnown for one	Unknown — not stated by the source	No
VGA (D-Sub) ports quantity	1	1
Headphone outputs	1	1
S/PDIF out portKnown for one	Unknown — not stated by the source	No
Microphone in	Yes	Yes
Docking connectorKnown for one	Unknown — not stated by the source	Yes
ExpressCard slotKnown for one	Unknown — not stated by the source	Yes
CardBus PCMCIA slots quantityKnown for one	Unknown — not stated by the source	0
CardBus PCMCIA slot typeKnown for one	Unknown — not stated by the source	No
SmartCard slotKnown for one	Unknown — not stated by the source	Yes
Modem (RJ-11) portsKnown for one	Unknown — not stated by the source	1
TV-outKnown for one	Unknown — not stated by the source	No
Performanceidentical
Motherboard chipsetKnown for one	Unknown — not stated by the source	Intel® QM57 Express
Keyboardidentical
Pointing deviceKnown for one	Unknown — not stated by the source	ThinkPad UltraNav
Software1 differ
Operating system installedDiffers	Windows XP Home Edition	Windows 7 Professional
Operating system architectureKnown for one	Unknown — not stated by the source	32-bit
Processor special features18 differ
Intel® Wireless Display (Intel® WiDi)	No	No
CPU configuration (max)Known for one	Unknown — not stated by the source	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithographyKnown for one	Unknown — not stated by the source	45 nm
Idle States	Yes	Yes
Intel 64Differs	No	Yes
Intel Clear Video TechnologyDiffers	No	Yes
Intel Demand Based SwitchingDiffers	Yes	No
Intel Dual Display Capable TechnologyDiffers	No	Yes
Intel Enhanced Halt State	Yes	Yes
Intel FDI TechnologyDiffers	No	Yes
Intel Fast Memory AccessDiffers	No	Yes
Intel Flex Memory AccessDiffers	No	Yes
Intel Rapid Storage Technology	No	No
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel VT-x with Extended Page Tables (EPT)Differs	No	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
Intel® AES New Instructions (Intel® AES-NI)Differs	No	Yes
Intel® Anti-Theft Technology (Intel® AT)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	No	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Differs	No	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® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Intel® Turbo Boost TechnologyDiffers	No	1.0
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Processor ARK IDDiffers	35466	43563
Processor codeDiffers	SLB2H	SLBMK
Processor package sizeDiffers	13 x 14 mm	BGA 34 x 28
Supported instruction setsDiffers	SSE2, SSE3, SSSE3	SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Battery2 differ
Number of battery cellsDiffers	3	9
Battery life (max)Differs	4 h	12.3 h
Battery capacityKnown for one	2200 mAh	Unknown — not stated by the source
Poweridentical
DC-in jack	Yes	Yes
Securityidentical
Cable lock slotKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	IBM
Fingerprint readerKnown for one	Unknown — not stated by the source	Yes
HDD user passwordKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions3 differ
WeightDiffers	1.25 kg	1.39 kg
WidthDiffers	284 mm	295 mm
DepthDiffers	198 mm	234 mm
Height (front)Known for one	Unknown — not stated by the source	2.07 cm
Height (rear)Known for one	Unknown — not stated by the source	3.53 cm
HeightKnown for one	25.4 mm	Unknown — not stated by the source
Other featuresidentical
Infrared data portKnown for one	Unknown — not stated by the source	No
Internal modemKnown for one	Unknown — not stated by the source	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
Supplied AC adapter typeKnown for one	Unknown — not stated by the source	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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