Product comparison · 2 laptops

Acer Aspire 1644WLMi vs Lenovo ThinkPad R50 PM 1.4GHz

46specifications compared
24differ
22identical
32known for one product only

Key differences

Display diagonal
- Aspire 1644WLMi:39.1 cm (15.4")
- ThinkPad R50 PM 1.4GHz:35.8 cm (14.1")
Display resolution
- Aspire 1644WLMi:1280 x 800 pixels
- ThinkPad R50 PM 1.4GHz:1024 x 768 pixels
Native aspect ratio
- Aspire 1644WLMi:16:10
- ThinkPad R50 PM 1.4GHz:4:3
Processor frequency
- Aspire 1644WLMi:2 GHz
- ThinkPad R50 PM 1.4GHz:1.4 GHz
Processor front side bus
- Aspire 1644WLMi:533 MHz
- ThinkPad R50 PM 1.4GHz:400 MHz
Internal memory
- Aspire 1644WLMi:1 GB
- ThinkPad R50 PM 1.4GHz:0.25 GB
Internal memory type
- Aspire 1644WLMi:DDR2-SDRAM
- ThinkPad R50 PM 1.4GHz:DDR-SDRAM
Total storage capacity
- Aspire 1644WLMi:100 GB
- ThinkPad R50 PM 1.4GHz:30 GB

Side by side

Differences highlightedShow differences only

Comparison of Aspire 1644WLMi, ThinkPad R50 PM 1.4GHz
78 specifications	A Acer Aspire 1644WLMi View product	B Lenovo ThinkPad R50 PM 1.4GHz 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	1.4 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
Memory2 differ
Internal memoryDiffers	1 GB	0.25 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 memory	2 GB	2 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 Mobility Radeon 7500
Maximum graphics card memoryDiffers	0.128 GB	0.032 GB
Graphics card interfaceKnown for one	Unknown — not stated by the source	AGP 4X
Audioidentical
Number of built-in speakers	2	2
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
Network2 differ
Networking featuresDiffers	Fast Ethernet, WLAN	Ethernet/Fast Ethernet
Wireless technologyDiffers	Intel PRO/Wireless 2200BG	IEEE 802.11b
BluetoothKnown for one	No	Unknown — not stated by the source
Ports & interfaces6 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 quantityDiffers	1	0
CardBus PCMCIA slot typeDiffers	Type II	No
SmartCard slot	No	No
Modem (RJ-11) ports	1	1
TV-in port	No	No
TV-outDiffers	No	Yes
PS/2 ports quantity	0	0
Parallel ports quantityDiffers	0	1
Serial ports quantity	0	0
USB 1.1 ports quantity	0	0
TV-out typeKnown for one	Unknown — not stated by the source	S-Video
Performanceidentical
Motherboard chipsetKnown for one	Intel® 915GM Express	Unknown — not stated by the source
Keyboard1 differ
Pointing deviceDiffers	Touchpad	ThinkPad UltraNav
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
Keyboard typeKnown for one	Unknown — not stated by the source	Full size
Software1 differ
Operating system installedDiffers	Windows XP Home Edition	Windows XP Professional
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	4.7 h
Poweridentical
DC-in jack	Yes	Yes
Weight & dimensions1 differ
WeightDiffers	2.94 kg	2.7 kg
WidthKnown for one	354 mm	Unknown — not stated by the source
DepthKnown for one	279 mm	Unknown — not stated by the source
HeightKnown for one	33.9 mm	Unknown — not stated by the source
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	314 x 260 x 37 mm
Packaging contentidentical
AC adapter includedKnown for one	Yes	Unknown — not stated by the source
Other features1 differ
Infrared data portDiffers	No	Yes
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 typeKnown for one	ITU V.92	Unknown — not stated by the source
Docking solutionKnown for one	Unknown — not stated by the source	Dock II / Port Replicator II
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
CD write speedKnown for one	Unknown — not stated by the source	24x
CD rewrite speedKnown for one	Unknown — not stated by the source	24x
DVD read speedKnown for one	Unknown — not stated by the source	8x
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

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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