Product comparison · 2 laptops

Lenovo ThinkPad R61i (7650-8TG) vs Lenovo ThinkPad X61s (7666-3FG), BE

111specifications compared
30differ
81identical
4known for one product only

Key differences

Display diagonal
- ThinkPad R61i (7650-8TG):39.1 cm (15.4")
- ThinkPad X61s (7666-3FG), BE:30.7 cm (12.1")
Display resolution
- ThinkPad R61i (7650-8TG):1280 x 800 pixels
- ThinkPad X61s (7666-3FG), BE:1024 x 768 pixels
Native aspect ratio
- ThinkPad R61i (7650-8TG):16:10
- ThinkPad X61s (7666-3FG), BE:4:3
Processor model
- ThinkPad R61i (7650-8TG):T5250
- ThinkPad X61s (7666-3FG), BE:L7500
Processor frequency
- ThinkPad R61i (7650-8TG):1.5 GHz
- ThinkPad X61s (7666-3FG), BE:1.6 GHz
Processor cache
- ThinkPad R61i (7650-8TG):2 MB
- ThinkPad X61s (7666-3FG), BE:4 MB
Processor front side bus
- ThinkPad R61i (7650-8TG):667 MHz
- ThinkPad X61s (7666-3FG), BE:800 MHz
Processor socket
- ThinkPad R61i (7650-8TG):Socket 478
- ThinkPad X61s (7666-3FG), BE:Socket 479

Side by side

Differences highlightedShow differences only

Comparison of ThinkPad R61i (7650-8TG), ThinkPad X61s (7666-3FG), BE
115 specifications	A Lenovo ThinkPad R61i (7650-8TG)View product	B Lenovo ThinkPad X61s (7666-3FG), BE View product
Display3 differ
Display diagonalDiffers	39.1 cm (15.4")	30.7 cm (12.1")
Display resolutionDiffers	1280 x 800 pixels	1024 x 768 pixels
Native aspect ratioDiffers	16:10	4:3
Processor8 differ
Processor modelDiffers	T5250	L7500
Processor frequencyDiffers	1.5 GHz	1.6 GHz
Processor cacheDiffers	2 MB	4 MB
Processor front side busDiffers	667 MHz	800 MHz
Processor socketDiffers	Socket 478	Socket 479
Processor seriesDiffers	Intel Core 2 Duo T5000 Series	Intel Core 2 Duo L7000 Series
Thermal Design Power (TDP)Differs	65, 35	17 W
CPU multiplier (bus/core ratio)Differs	9	8
Storage2 differ
Total storage capacityDiffers	120 GB	80 GB
Optical drive typeDiffers	DVD±RW	No
Audio3 differ
Audio systemDiffers	HDA 24-bit	Intel HDA 24-bit
Number of built-in speakersDiffers	2	1
Speaker powerDiffers	2 W	0.5 W
Network2 differ
Networking featuresDiffers	WLAN, Gigabit Ethernet	Gigabit Ethernet, WLAN
Wireless technologyDiffers	Intel 3945ABG	Intel 3945 a/b/g
Ports & interfaces2 differ
Firewire (IEEE 1394) portsDiffers	0	1
Docking connectorDiffers	No	Yes
Keyboard1 differ
Pointing deviceDiffers	Trackpad	Pointing Stick
Processor special features4 differ
Embedded options availableDiffers	No	Yes
Intel Enhanced Halt StateDiffers	No	Yes
Intel Virtualization Technology (VT-x)Differs	No	Yes
Processor ARK IDDiffers	30786	29757
Idle StatesKnown for one	Unknown — not stated by the source	Yes
Battery1 differ
Number of battery cellsDiffers	6	8
Battery life (max)Known for one	Unknown — not stated by the source	8.2 h
Weight & dimensions4 differ
WeightDiffers	2.99 kg	1.65 kg
WidthDiffers	358.5 mm	268 mm
DepthDiffers	260 mm	211 mm
HeightDiffers	35.3 mm	20 mm
Other featuresidentical
Modem typeKnown for one	V.92	Unknown — not stated by the source
Supplied AC adapter typeKnown for one	AC	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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