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
Optical drive typeKnown for one	Unknown — not stated by the source	DVD-ROM
Graphics2 differ
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
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
VGA (D-Sub) ports quantityDiffers	0	1
ExpressCard slotKnown for one	No	Unknown — not stated by the source
CardBus PCMCIA slot typeDiffers	Type II	Type III
Parallel ports quantityDiffers	0	1
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
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
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
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
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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