Product comparison · 2 laptops

Lenovo ThinkPad R61 (8944-66G), UK vs Lenovo ThinkPad R61i (7650-8TG)

113specifications compared
25differ
88identical
6known for one product only

Key differences

Display diagonal
- ThinkPad R61 (8944-66G), UK:38.1 cm (15")
- ThinkPad R61i (7650-8TG):39.1 cm (15.4")
Display resolution
- ThinkPad R61 (8944-66G), UK:1024 x 768 pixels
- ThinkPad R61i (7650-8TG):1280 x 800 pixels
Native aspect ratio
- ThinkPad R61 (8944-66G), UK:4:3
- ThinkPad R61i (7650-8TG):16:10
Processor model
- ThinkPad R61 (8944-66G), UK:T7100
- ThinkPad R61i (7650-8TG):T5250
Processor frequency
- ThinkPad R61 (8944-66G), UK:1.8 GHz
- ThinkPad R61i (7650-8TG):1.5 GHz
Processor cache
- ThinkPad R61 (8944-66G), UK:4 MB
- ThinkPad R61i (7650-8TG):2 MB
Processor front side bus
- ThinkPad R61 (8944-66G), UK:800 MHz
- ThinkPad R61i (7650-8TG):667 MHz
Thermal Design Power (TDP)
- ThinkPad R61 (8944-66G), UK:35 W
- ThinkPad R61i (7650-8TG):65, 35

Side by side

Differences highlightedShow differences only

Comparison of ThinkPad R61 (8944-66G), UK, ThinkPad R61i (7650-8TG)
119 specifications	A Lenovo ThinkPad R61 (8944-66G), UK View product	B Lenovo ThinkPad R61i (7650-8TG)View product
Display3 differ
Display diagonalDiffers	38.1 cm (15")	39.1 cm (15.4")
Display resolutionDiffers	1024 x 768 pixels	1280 x 800 pixels
Native aspect ratioDiffers	4:3	16:10
Processor6 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™2 Duo	Intel® Core™2 Duo
Processor modelDiffers	T7100	T5250
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	1.8 GHz	1.5 GHz
Processor cacheDiffers	4 MB	2 MB
Processor cache type	L2	L2
Processor front side busDiffers	800 MHz	667 MHz
Processor socket	Socket 478	Socket 478
Processor lithography	65 nm	65 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core 2 Duo T7000 Series	Intel Core 2 Duo T5000 Series
Processor codename	Merom	Merom
Bus type	FSB	FSB
FSB Parity	No	No
Thermal Design Power (TDP)Differs	35 W	65, 35
Tjunction	100 °C	100 °C
Number of Processing Die Transistors	291 M	291 M
Processing Die size	143 mm²	143 mm²
CPU multiplier (bus/core ratio)	9	9
ECC supported by processor	No	No
Memory1 differ
Internal memory	1 GB	1 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory clock speed	667 MHz	667 MHz
Memory layout (slots x size)Differs	2 x 0.5 GB	1 x 1 GB
Maximum internal memory	4 GB	4 GB
Storage2 differ
Total storage capacityDiffers	80 GB	120 GB
HDD interface	SATA	SATA
HDD speed	5400 RPM	5400 RPM
Optical drive typeDiffers	DVD-ROM	DVD±RW
Card reader integratedKnown for one	Yes	Unknown — not stated by the source
Graphicsidentical
Discrete graphics card	Yes	Yes
Discrete graphics card model	Intel® GMA X3100	Intel® GMA X3100
Audioidentical
Audio system	HDA 24-bit	HDA 24-bit
Number of built-in speakers	2	2
Speaker power	2 W	2 W
Cameraidentical
Front camera	No	No
Network1 differ
Networking features	WLAN, Gigabit Ethernet	WLAN, Gigabit Ethernet
Wireless technologyDiffers	Intel 3945 a/b/g	Intel 3945ABG
Bluetooth	No	No
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Ports & interfaces3 differ
USB 2.0 ports quantity	3	3
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityKnown for one	0	Unknown — not stated by the source
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) portsDiffers	1	0
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connectorDiffers	Yes	No
ExpressCard slot	No	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
Modem (RJ-11) ports	1	1
TV-in port	No	No
TV-outDiffers	Yes	No
TV-out typeKnown for one	S-Video	Unknown — not stated by the source
PS/2 ports quantity	0	0
Parallel ports quantity	0	0
Serial ports quantity	0	0
USB 1.1 ports quantity	0	0
Keyboard1 differ
Pointing deviceDiffers	ThinkPad UltraNav	Trackpad
Software1 differ
Operating system installedDiffers	Windows Vista Business	Windows XP Professional
Drivers includedKnown for one	Yes	Unknown — not stated by the source
Bundled software	Yes	Yes
Processor special features3 differ
Intel® Wireless Display (Intel® WiDi)	No	No
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Idle StatesKnown for one	Yes	Unknown — not stated by the source
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	No	No
Intel Enhanced Halt StateDiffers	Yes	No
Intel FDI Technology	No	No
Intel Fast Memory Access	No	No
Intel Flex Memory Access	No	No
Intel Rapid Storage Technology	No	No
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)	No	No
Intel Virtualization Technology (VT-x)Differs	Yes	No
Intel Virtualization Technology for Directed I/O (VT-d)	No	No
Intel® AES New Instructions (Intel® AES-NI)	No	No
Intel® Anti-Theft Technology (Intel® AT)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)	No	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	No	No
Intel® InTru™ 3D Technology	No	No
Intel® Insider™	No	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Quick Sync Video Technology	No	No
Intel® Turbo Boost Technology	No	No
Processor ARK IDDiffers	29759	30786
Processor package size	35 x 35 mm	35 x 35 mm
Thermal Monitoring Technologies	No	No
Conflict-Free processor	No	No
Batteryidentical
Number of battery cells	6	6
Poweridentical
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	IBM	IBM
Fingerprint readerKnown for one	Yes	Unknown — not stated by the source
HDD user password	Yes	Yes
Weight & dimensions4 differ
WeightDiffers	2.77 kg	2.99 kg
WidthDiffers	332 mm	358.5 mm
DepthDiffers	269 mm	260 mm
HeightDiffers	40 mm	35.3 mm
Packaging contentidentical
AC adapter included	Yes	Yes
Other featuresidentical
Infrared data port	No	No
Internal modem	Yes	Yes
Modem speed	56 Kbit/s	56 Kbit/s
Modem type	V.92	V.92
Supplied AC adapter type	AC	AC

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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