Product comparison · 2 laptops

Acer Aspire One 751h-52Bk Intel Atom® Z520 Netbook vs Lenovo ThinkPad R50e Intel Pentium Mobile 745

81specifications compared
39differ
42identical
47known for one product only

Key differences

Display diagonal
- Aspire One 751h-52Bk Intel Atom® Z520 Netbook:29.5 cm (11.6")
- ThinkPad R50e Intel Pentium Mobile 745:38.1 cm (15")
Display resolution
- Aspire One 751h-52Bk Intel Atom® Z520 Netbook:1366 x 768 pixels
- ThinkPad R50e Intel Pentium Mobile 745:1024 x 768 pixels
Native aspect ratio
- Aspire One 751h-52Bk Intel Atom® Z520 Netbook:16:9
- ThinkPad R50e Intel Pentium Mobile 745:4:3
Processor family
- Aspire One 751h-52Bk Intel Atom® Z520 Netbook:Intel Atom®
- ThinkPad R50e Intel Pentium Mobile 745:Intel Pentium Mobile
Processor model
- Aspire One 751h-52Bk Intel Atom® Z520 Netbook:Z520
- ThinkPad R50e Intel Pentium Mobile 745:745
Processor threads
- Aspire One 751h-52Bk Intel Atom® Z520 Netbook:2
- ThinkPad R50e Intel Pentium Mobile 745:1
Processor frequency
- Aspire One 751h-52Bk Intel Atom® Z520 Netbook:1.33 GHz
- ThinkPad R50e Intel Pentium Mobile 745:1.8 GHz
Processor cache
- Aspire One 751h-52Bk Intel Atom® Z520 Netbook:0.512 MB
- ThinkPad R50e Intel Pentium Mobile 745:2 MB

Side by side

Differences highlightedShow differences only

Comparison of 751h-52Bk, R50e
128 specifications	A Acer Aspire One 751h-52Bk Intel Atom® Z520 Netbook Model 751h-52Bk View product	B Lenovo ThinkPad R50e Intel Pentium Mobile 745 Model R50e View product
Designidentical
Product typeKnown for one	Netbook	Unknown — not stated by the source
Display3 differ
Display diagonalDiffers	29.5 cm (11.6")	38.1 cm (15")
Display resolutionDiffers	1366 x 768 pixels	1024 x 768 pixels
Native aspect ratioDiffers	16:9	4:3
LED backlightKnown for one	Yes	Unknown — not stated by the source
Processor15 differ
Processor familyDiffers	Intel Atom®	Intel Pentium Mobile
Processor modelDiffers	Z520	745
Processor threadsDiffers	2	1
Processor frequencyDiffers	1.33 GHz	1.8 GHz
Processor cacheDiffers	0.512 MB	2 MB
Processor front side busDiffers	533 MHz	400 MHz
Processor socketDiffers	PBGA441	Socket 479
Processor lithographyDiffers	45 nm	90 nm
Processor seriesDiffers	Intel Atom Z500 Series	Intel Pentium M 700 Series
Processor codenameDiffers	Silverthorne	Dothan
Thermal Design Power (TDP)Differs	2 W	21 W
TjunctionDiffers	90 °C	100 °C
Number of Processing Die TransistorsDiffers	47 M	144 M
Processing Die sizeDiffers	26 mm²	87 mm²
CPU multiplier (bus/core ratio)Differs	10	18
SteppingKnown for one	C0	Unknown — not stated by the source
Scenario Design Power (SDP)Known for one	0.96 W	Unknown — not stated by the source
Memory2 differ
Internal memoryDiffers	1 GB	0.5 GB
Internal memory typeDiffers	DDR2-SDRAM	DDR-SDRAM
Memory layout (slots x size)Known for one	1 x 1 GB	Unknown — not stated by the source
Memory slotsKnown for one	1x SO-DIMM	Unknown — not stated by the source
Maximum internal memoryKnown for one	2 GB	Unknown — not stated by the source
Storage2 differ
Total storage capacityDiffers	160 GB	60 GB
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
Optical drive typeKnown for one	Unknown — not stated by the source	DVD-RW
Card reader integratedDiffers	Yes	No
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
Compatible memory cardsKnown for one	Memory Stick (MS), MMC, MS PRO, SD, xD	Unknown — not stated by the source
Graphicsidentical
Graphics cardKnown for one	GMA 500	Unknown — not stated by the source
Audio1 differ
Audio systemDiffers	High Definition Audio	SoundMAX
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
Network1 differ
Networking featuresKnown for one	Unknown — not stated by the source	Fast Ethernet
Wireless technologyDiffers	IEEE 802.11a/b/g	Wi-Fi
Cabling technologyKnown for one	Unknown — not stated by the source	10/100Base-T(X)
Ethernet LAN data ratesKnown for one	10,100 Mbit/s	Unknown — not stated by the source
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	3	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	Unknown — not stated by the source	0
eSATA ports quantityKnown for one	Unknown — not stated by the source	0
HDMI ports quantityKnown for one	Unknown — not stated by the source	0
DisplayPorts quantityKnown for one	Unknown — not stated by the source	0
DVI portKnown for one	Unknown — not stated by the source	No
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	0
S/PDIF out portKnown for one	Unknown — not stated by the source	No
Microphone inKnown for one	Unknown — not stated by the source	Yes
Docking connectorKnown for one	Unknown — not stated by the source	No
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	No
Modem (RJ-11) portsKnown for one	Unknown — not stated by the source	1
TV-outKnown for one	Unknown — not stated by the source	No
Keyboardidentical
Pointing deviceKnown for one	Unknown — not stated by the source	Touchpad
Processor special features9 differ
Embedded options availableDiffers	No	Yes
Idle StatesDiffers	Yes	No
Intel Demand Based SwitchingDiffers	Yes	No
Intel Enhanced Halt StateDiffers	Yes	No
Intel Virtualization Technology (VT-x)Differs	Yes	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Processor ARK IDDiffers	35466	27591
Processor package sizeDiffers	13 x 14 mm	35 x 35 mm
Thermal Monitoring TechnologiesDiffers	Yes	No
Processor codeKnown for one	SLB2H	Unknown — not stated by the source
Supported instruction setsKnown for one	SSE2, SSE3, SSSE3	Unknown — not stated by the source
Battery1 differ
Number of battery cellsDiffers	3	6
Battery technologyKnown for one	Lithium-Ion (Li-Ion)	Unknown — not stated by the source
Securityidentical
Cable lock slotKnown for one	Unknown — not stated by the source	No
Weight & dimensions4 differ
WeightDiffers	1.25 kg	2.8 kg
WidthDiffers	284 mm	332 mm
DepthDiffers	198 mm	269 mm
HeightDiffers	24 mm	38 mm
Packaging contentidentical
AC adapter includedKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
Infrared data portKnown for one	Unknown — not stated by the source	No
Compliance industry standardsKnown for one	Unknown — not stated by the source	IEEE 802.3, IEEE 802.3u
Power requirementsKnown for one	Unknown — not stated by the source	100 - 240V
Power supply typeKnown for one	Unknown — not stated by the source	AC/DC
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
Cameraidentical
Front camera resolution (numeric)Known for one	0.3 MP	Unknown — not stated by the source
Performanceidentical
Motherboard chipsetKnown for one	Intel® SCH US15W	Unknown — not stated by the source
GPS (satellite)Known for one	No	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.

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