Product comparison · 2 laptops

Lenovo ThinkPad R61 (8944-66G), UK vs Lenovo ThinkPad X61s (7666-B4G), SE

93specifications compared
22differ
71identical
28known for one product only

Key differences

Display diagonal
- ThinkPad R61 (8944-66G), UK:38.1 cm (15")
- ThinkPad X61s (7666-B4G), SE:30.7 cm (12.1")
Processor model
- ThinkPad R61 (8944-66G), UK:T7100
- ThinkPad X61s (7666-B4G), SE:L7700
Processor socket
- ThinkPad R61 (8944-66G), UK:Socket 478
- ThinkPad X61s (7666-B4G), SE:Socket 479
Thermal Design Power (TDP)
- ThinkPad R61 (8944-66G), UK:35 W
- ThinkPad X61s (7666-B4G), SE:17 W
CPU multiplier (bus/core ratio)
- ThinkPad R61 (8944-66G), UK:9
- ThinkPad X61s (7666-B4G), SE:8
Internal memory
- ThinkPad R61 (8944-66G), UK:1 GB
- ThinkPad X61s (7666-B4G), SE:2 GB
Total storage capacity
- ThinkPad R61 (8944-66G), UK:80 GB
- ThinkPad X61s (7666-B4G), SE:100 GB
Optical drive type
- ThinkPad R61 (8944-66G), UK:DVD-ROM
- ThinkPad X61s (7666-B4G), SE:No

Side by side

Differences highlightedShow differences only

Comparison of ThinkPad R61 (8944-66G), UK, ThinkPad X61s (7666-B4G), SE
121 specifications	A Lenovo ThinkPad R61 (8944-66G), UK View product	B Lenovo ThinkPad X61s (7666-B4G), SE View product
Display1 differ
Display diagonalDiffers	38.1 cm (15")	30.7 cm (12.1")
Processor4 differ
Processor modelDiffers	T7100	L7700
Processor socketDiffers	Socket 478	Socket 479
Processor seriesKnown for one	Intel Core 2 Duo T7000 Series	Unknown — not stated by the source
FSB ParityKnown for one	No	Unknown — not stated by the source
Thermal Design Power (TDP)Differs	35 W	17 W
CPU multiplier (bus/core ratio)Differs	9	8
ECC supported by processorKnown for one	No	Unknown — not stated by the source
SteppingKnown for one	Unknown — not stated by the source	G0
Memory1 differ
Internal memoryDiffers	1 GB	2 GB
Memory layout (slots x size)Known for one	2 x 0.5 GB	Unknown — not stated by the source
Storage3 differ
Total storage capacityDiffers	80 GB	100 GB
Optical drive typeDiffers	DVD-ROM	No
Card reader integratedDiffers	Yes	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
Network1 differ
Wireless technologyDiffers	Intel 3945 a/b/g	Intel 4965AGN
Ports & interfaces2 differ
ExpressCard slotDiffers	No	Yes
TV-outDiffers	Yes	No
TV-out typeKnown for one	S-Video	Unknown — not stated by the source
Keyboard1 differ
Pointing deviceDiffers	ThinkPad UltraNav	Pointing Stick
Processor special features1 differ
Intel® Wireless Display (Intel® WiDi)Known for one	No	Unknown — not stated by the source
Idle StatesKnown for one	Yes	Unknown — not stated by the source
Intel Clear Video TechnologyKnown for one	No	Unknown — not stated by the source
Intel Dual Display Capable TechnologyKnown for one	No	Unknown — not stated by the source
Intel Enhanced Halt StateKnown for one	Yes	Unknown — not stated by the source
Intel FDI TechnologyKnown for one	No	Unknown — not stated by the source
Intel Fast Memory AccessKnown for one	No	Unknown — not stated by the source
Intel Flex Memory AccessKnown for one	No	Unknown — not stated by the source
Intel Rapid Storage TechnologyKnown for one	No	Unknown — not stated by the source
Intel VT-x with Extended Page Tables (EPT)Known for one	No	Unknown — not stated by the source
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	No	Unknown — not stated by the source
Intel® AES New Instructions (Intel® AES-NI)Known for one	No	Unknown — not stated by the source
Intel® Anti-Theft Technology (Intel® AT)Known for one	No	Unknown — not stated by the source
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	No	Unknown — not stated by the source
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	No	Unknown — not stated by the source
Intel® InTru™ 3D TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Insider™Known for one	No	Unknown — not stated by the source
Intel® My WiFi Technology (Intel® MWT)Known for one	No	Unknown — not stated by the source
Intel® Quick Sync Video TechnologyKnown for one	No	Unknown — not stated by the source
Processor ARK IDDiffers	29759	32243
Thermal Monitoring TechnologiesKnown for one	No	Unknown — not stated by the source
Conflict-Free processorKnown for one	No	Unknown — not stated by the source
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	2.77 kg	1.5 kg
WidthDiffers	332 mm	211 mm
DepthDiffers	269 mm	268 mm
HeightDiffers	40 mm	20 mm

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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