Product comparison · 2 laptops

Lenovo ThinkPad R61i Intel® Core™2 Duo T5450 Laptop vs Lenovo ThinkPad T61 (6457-4XG), BE

107specifications compared
28differ
79identical
18known for one product only

Key differences

Display resolution
- ThinkPad R61i Intel® Core™2 Duo T5450 Laptop:1280 x 800 pixels
- ThinkPad T61 (6457-4XG), BE:1680 x 1050 pixels
Processor model
- ThinkPad R61i Intel® Core™2 Duo T5450 Laptop:T5450
- ThinkPad T61 (6457-4XG), BE:T7500
Processor frequency
- ThinkPad R61i Intel® Core™2 Duo T5450 Laptop:1.66 GHz
- ThinkPad T61 (6457-4XG), BE:2.2 GHz
Processor cache
- ThinkPad R61i Intel® Core™2 Duo T5450 Laptop:2 MB
- ThinkPad T61 (6457-4XG), BE:4 MB
Processor front side bus
- ThinkPad R61i Intel® Core™2 Duo T5450 Laptop:667 MHz
- ThinkPad T61 (6457-4XG), BE:800 MHz
Processor socket
- ThinkPad R61i Intel® Core™2 Duo T5450 Laptop:Socket 479
- ThinkPad T61 (6457-4XG), BE:Socket 478
Stepping
- ThinkPad R61i Intel® Core™2 Duo T5450 Laptop:M0
- ThinkPad T61 (6457-4XG), BE:E1
CPU multiplier (bus/core ratio)
- ThinkPad R61i Intel® Core™2 Duo T5450 Laptop:10
- ThinkPad T61 (6457-4XG), BE:11

Side by side

Differences highlightedShow differences only

Comparison of R61i, ThinkPad T61 (6457-4XG), BE
125 specifications	A Lenovo ThinkPad R61i Intel® Core™2 Duo T5450 Laptop Model R61i View product	B Lenovo ThinkPad T61 (6457-4XG), BE View product
Display1 differ
Display resolutionDiffers	1280 x 800 pixels	1680 x 1050 pixels
Processor8 differ
Processor modelDiffers	T5450	T7500
Processor frequencyDiffers	1.66 GHz	2.2 GHz
Processor cacheDiffers	2 MB	4 MB
Processor front side busDiffers	667 MHz	800 MHz
Processor socketDiffers	Socket 479	Socket 478
Processor seriesDiffers	Intel Core 2 Duo T5000 Series	Intel Core 2 Duo T7000 Series
SteppingDiffers	M0	E1
CPU multiplier (bus/core ratio)Differs	10	11
Processor core voltage (AC)Known for one	1.075 - 1.175 V	Unknown — not stated by the source
Memoryidentical
Memory clock speedKnown for one	Unknown — not stated by the source	667 MHz
Memory layout (slots x size)Known for one	Unknown — not stated by the source	1 x 1 GB
Memory slotsKnown for one	2x SO-DIMM	Unknown — not stated by the source
Storage1 differ
Total storage capacityDiffers	160 GB	120 GB
Card reader integratedKnown for one	Unknown — not stated by the source	Yes
Compatible memory cardsKnown for one	Unknown — not stated by the source	MMC, SD, xD
Optical drive typeKnown for one	DVD±RW	Unknown — not stated by the source
Graphics1 differ
Discrete graphics card modelDiffers	Intel® GMA X3100	NVIDIA Quadro NVS 140M
Maximum graphics card memoryKnown for one	Unknown — not stated by the source	0.128 GB
Audio2 differ
Audio systemDiffers	High Definition Audio	HDA 24-bit
Speaker powerDiffers	2 W	4 W
Network2 differ
Networking featuresDiffers	Gigabit Ethernet	WLAN, Gigabit Ethernet
Wireless technologyDiffers	IEEE 802.11a/b/g	Intel 3945 a/b/g
Cabling technologyKnown for one	Unknown — not stated by the source	10/100/1000Base-T(X)
Ports & interfaces4 differ
Docking connectorDiffers	Yes	No
CardBus PCMCIA slots quantityDiffers	1	0
CardBus PCMCIA slot typeDiffers	Type II	No
TV-outDiffers	Yes	No
TV-out typeKnown for one	S-Video	Unknown — not stated by the source
Software1 differ
Operating system installedDiffers	Windows XP Professional	Windows Vista Business
Bundled softwareKnown for one	Unknown — not stated by the source	Yes
Processor special features4 differ
Embedded options availableDiffers	No	Yes
Idle StatesKnown for one	Unknown — not stated by the source	Yes
Intel Enhanced Halt StateDiffers	No	Yes
Intel Virtualization Technology (VT-x)Differs	No	Yes
Processor ARK IDDiffers	30787	29761
Weight & dimensions4 differ
WeightDiffers	2.75 kg	2.56 kg
WidthDiffers	358 mm	357.5 mm
DepthDiffers	260 mm	255 mm
HeightDiffers	35 mm	29.7 mm
Dimensions (WxDxH)Known for one	358 x 260 x 35 mm	Unknown — not stated by the source
Packaging contentidentical
AC adapter includedKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
Modem typeKnown for one	Unknown — not stated by the source	V.92
Designidentical
Product typeKnown for one	Laptop	Unknown — not stated by the source
Batteryidentical
Number of battery cellsKnown for one	6	Unknown — not stated by the source
Battery life (max)Known for one	5 h	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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