Product comparison · 2 laptops

Lenovo ThinkPad R61i (7650-8TG) vs Lenovo ThinkPad X61s (7666-B4G), BE

89specifications compared
29differ
60identical
30known for one product only

Key differences

Display diagonal
- ThinkPad R61i (7650-8TG):39.1 cm (15.4")
- ThinkPad X61s (7666-B4G), BE:30.7 cm (12.1")
Display resolution
- ThinkPad R61i (7650-8TG):1280 x 800 pixels
- ThinkPad X61s (7666-B4G), BE:1024 x 768 pixels
Native aspect ratio
- ThinkPad R61i (7650-8TG):16:10
- ThinkPad X61s (7666-B4G), BE:4:3
Processor model
- ThinkPad R61i (7650-8TG):T5250
- ThinkPad X61s (7666-B4G), BE:L7700
Processor frequency
- ThinkPad R61i (7650-8TG):1.5 GHz
- ThinkPad X61s (7666-B4G), BE:1.8 GHz
Processor cache
- ThinkPad R61i (7650-8TG):2 MB
- ThinkPad X61s (7666-B4G), BE:4 MB
Processor front side bus
- ThinkPad R61i (7650-8TG):667 MHz
- ThinkPad X61s (7666-B4G), BE:800 MHz
Processor socket
- ThinkPad R61i (7650-8TG):Socket 478
- ThinkPad X61s (7666-B4G), BE:Socket 479

Side by side

Differences highlightedShow differences only

Comparison of ThinkPad R61i (7650-8TG), ThinkPad X61s (7666-B4G), BE
119 specifications	A Lenovo ThinkPad R61i (7650-8TG)View product	B Lenovo ThinkPad X61s (7666-B4G), 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
Processor7 differ
Processor modelDiffers	T5250	L7700
Processor frequencyDiffers	1.5 GHz	1.8 GHz
Processor cacheDiffers	2 MB	4 MB
Processor front side busDiffers	667 MHz	800 MHz
Processor socketDiffers	Socket 478	Socket 479
Processor seriesKnown for one	Intel Core 2 Duo T5000 Series	Unknown — not stated by the source
FSB ParityKnown for one	No	Unknown — not stated by the source
Thermal Design Power (TDP)Differs	65, 35	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	1 x 1 GB	Unknown — not stated by the source
Storage2 differ
Total storage capacityDiffers	120 GB	100 GB
Optical drive typeDiffers	DVD±RW	No
Card reader integratedKnown for one	Unknown — not stated by the source	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 3945ABG	Intel 4965AGN
Ports & interfaces3 differ
Firewire (IEEE 1394) portsDiffers	0	1
Docking connectorDiffers	No	Yes
ExpressCard slotDiffers	No	Yes
HDMI ports quantityKnown for one	Unknown — not stated by the source	0
Keyboard1 differ
Pointing deviceDiffers	Trackpad	Pointing Stick
Software1 differ
Operating system installedDiffers	Windows XP Professional	Windows Vista Business
Drivers includedKnown for one	Unknown — not stated by the source	Yes
Processor special features2 differ
Intel® Wireless Display (Intel® WiDi)Known for one	No	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	No	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 (VT-x)Differs	No	Yes
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	30786	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
Securityidentical
Fingerprint readerKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions4 differ
WeightDiffers	2.99 kg	1.5 kg
WidthDiffers	358.5 mm	211 mm
DepthDiffers	260 mm	268 mm
HeightDiffers	35.3 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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