Product comparison · 2 laptops

Acer Aspire 1644WLMi vs Lenovo ThinkPad R40e

49specifications compared
25differ
24identical
23known for one product only

Key differences

Display diagonal
- Aspire 1644WLMi:39.1 cm (15.4")
- ThinkPad R40e:35.8 cm (14.1")
Display resolution
- Aspire 1644WLMi:1280 x 800 pixels
- ThinkPad R40e:1024 x 768 pixels
Native aspect ratio
- Aspire 1644WLMi:16:10
- ThinkPad R40e:4:3
Processor frequency
- Aspire 1644WLMi:2 GHz
- ThinkPad R40e:2.4 GHz
Processor front side bus
- Aspire 1644WLMi:533 MHz
- ThinkPad R40e:400 MHz
Internal memory
- Aspire 1644WLMi:1 GB
- ThinkPad R40e:0.125 GB
Internal memory type
- Aspire 1644WLMi:DDR2-SDRAM
- ThinkPad R40e:DDR-SDRAM
Maximum internal memory
- Aspire 1644WLMi:2 GB
- ThinkPad R40e:1 GB

Side by side

Differences highlightedShow differences only

Comparison of Aspire 1644WLMi, ThinkPad R40e
72 specifications	A Acer Aspire 1644WLMi View product	B Lenovo ThinkPad R40e View product
Display3 differ
Display diagonalDiffers	39.1 cm (15.4")	35.8 cm (14.1")
Display resolutionDiffers	1280 x 800 pixels	1024 x 768 pixels
Native aspect ratioDiffers	16:10	4:3
Processor2 differ
Processor frequencyDiffers	2 GHz	2.4 GHz
Processor cacheKnown for one	2 MB	Unknown — not stated by the source
Processor cache typeKnown for one	L2	Unknown — not stated by the source
Processor front side busDiffers	533 MHz	400 MHz
Processor manufacturerKnown for one	Unknown — not stated by the source	Intel
Processor familyKnown for one	Unknown — not stated by the source	Intel® Celeron® M
Memory3 differ
Internal memoryDiffers	1 GB	0.125 GB
Internal memory typeDiffers	DDR2-SDRAM	DDR-SDRAM
Memory layout (slots x size)Known for one	2 x 0.5 GB	Unknown — not stated by the source
Maximum internal memoryDiffers	2 GB	1 GB
Storage1 differ
Total storage capacityDiffers	100 GB	30 GB
HDD interface	Ultra-ATA/100	Ultra-ATA/100
HDD speed	4200 RPM	4200 RPM
Optical drive typeKnown for one	Unknown — not stated by the source	DVD-ROM
Graphics2 differ
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	Intel® GMA 900	AMD Radeon IGP 330M
Maximum graphics card memoryDiffers	0.128 GB	0.016 GB
Audio1 differ
Number of built-in speakersDiffers	2	1
Built-in subwooferKnown for one	No	Unknown — not stated by the source
Audio systemKnown for one	Unknown — not stated by the source	SoundMAX
Cameraidentical
Front camera	No	No
Network1 differ
Networking featuresDiffers	Fast Ethernet, WLAN	Ethernet/Fast Ethernet
Wireless technologyKnown for one	Intel PRO/Wireless 2200BG	Unknown — not stated by the source
BluetoothKnown for one	No	Unknown — not stated by the source
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers	3	2
Ethernet LAN (RJ-45) ports	1	1
DVI port	No	No
VGA (D-Sub) ports quantityDiffers	0	1
Firewire (IEEE 1394) ports	0	0
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connector	No	No
ExpressCard slotKnown for one	No	Unknown — not stated by the source
CardBus PCMCIA slots quantity	1	1
CardBus PCMCIA slot typeDiffers	Type II	Type III
SmartCard slot	No	No
Modem (RJ-11) ports	1	1
TV-in port	No	No
TV-out	No	No
PS/2 ports quantity	0	0
Parallel ports quantityDiffers	0	1
Serial ports quantity	0	0
USB 1.1 ports quantity	0	0
Performanceidentical
Motherboard chipsetKnown for one	Intel® 915GM Express	Unknown — not stated by the source
Keyboard1 differ
Pointing deviceDiffers	Touchpad	Trackpad
Number of keyboard cursor keysKnown for one	4	Unknown — not stated by the source
Keyboard function keysKnown for one	12	Unknown — not stated by the source
Softwareidentical
Operating system installed	Windows XP Home Edition	Windows XP Home Edition
Bundled softwareKnown for one	Acer eManager Acer Grid Vista Acer Launch Manager Acer Arcade Acer System Recovery CD Adobe Reader NTI CD-Maker	Unknown — not stated by the source
Battery2 differ
Number of battery cellsDiffers	4	6
Battery life (max)Differs	2 h	2.1 h
Poweridentical
DC-in jack	Yes	Yes
Weight & dimensions4 differ
WeightDiffers	2.94 kg	2.7 kg
WidthDiffers	354 mm	313 mm
DepthDiffers	279 mm	254 mm
HeightDiffers	33.9 mm	39 mm
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	313 x 254 x 39 mm
Packaging contentidentical
AC adapter includedKnown for one	Yes	Unknown — not stated by the source
Other features1 differ
Infrared data port	No	No
Power managementKnown for one	ACPI 2.0	Unknown — not stated by the source
Wake-on-LAN readyKnown for one	Yes	Unknown — not stated by the source
Wake-on-Ring readyKnown for one	Yes	Unknown — not stated by the source
Internal modem	Yes	Yes
Modem speed	56 Kbit/s	56 Kbit/s
Modem typeDiffers	ITU V.92	V.92
Supplied AC adapter typeKnown for one	Unknown — not stated by the source	AC
Optical driveidentical
CD read speedKnown for one	Unknown — not stated by the source	24x
DVD read speedKnown for one	Unknown — not stated by the source	8x

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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