Product comparison · 2 laptops

Lenovo IBM THINKPAD T43 P M-1.86 (750)CENT. 512/60G/15/DVDRW/WXP US vs Lenovo ThinkPad R51 PM 1600 256MB 40GB WXPP

25specifications compared
11differ
14identical
12known for one product only

Key differences

The Lenovo IBM THINKPAD T43 P M-1.86 (750)CENT. 512/60G/15/DVDRW/WXP US has 0.26 GHz more processor frequency than the Lenovo ThinkPad R51 PM 1600 256MB 40GB WXPP (1.86 GHz vs 1.6 GHz). The Lenovo IBM THINKPAD T43 P M-1.86 (750)CENT. 512/60G/15/DVDRW/WXP US has 133 MHz more processor front side bus than the Lenovo ThinkPad R51 PM 1600 256MB 40GB WXPP (533 MHz vs 400 MHz). The Lenovo IBM THINKPAD T43 P M-1.86 (750)CENT. 512/60G/15/DVDRW/WXP US has 0.25 GB more internal memory than the Lenovo ThinkPad R51 PM 1600 256MB 40GB WXPP (0.5 GB vs 0.25 GB). Graphics card interface: PCI Express on the Lenovo IBM THINKPAD T43 P M-1.86 (750)CENT. 512/60G/15/DVDRW/WXP US, Direct AGP on the Lenovo ThinkPad R51 PM 1600 256MB 40GB WXPP. Dimensions (WxDxH): 329 x 268 x 31 mm on the Lenovo IBM THINKPAD T43 P M-1.86 (750)CENT. 512/60G/15/DVDRW/WXP US, 332 x 269 x 37 mm on the Lenovo ThinkPad R51 PM 1600 256MB 40GB WXPP.

Processor frequency
- IBM THINKPAD T43 P M-1.86 (750)CENT. 512/60G/15/DVDRW/WXP US:1.86 GHz
- ThinkPad R51 PM 1600 256MB 40GB WXPP:1.6 GHz
Processor front side bus
- IBM THINKPAD T43 P M-1.86 (750)CENT. 512/60G/15/DVDRW/WXP US:533 MHz
- ThinkPad R51 PM 1600 256MB 40GB WXPP:400 MHz
Internal memory
- IBM THINKPAD T43 P M-1.86 (750)CENT. 512/60G/15/DVDRW/WXP US:0.5 GB
- ThinkPad R51 PM 1600 256MB 40GB WXPP:0.25 GB
Total storage capacity
- IBM THINKPAD T43 P M-1.86 (750)CENT. 512/60G/15/DVDRW/WXP US:60 GB
- ThinkPad R51 PM 1600 256MB 40GB WXPP:40 GB
HDD speed
- IBM THINKPAD T43 P M-1.86 (750)CENT. 512/60G/15/DVDRW/WXP US:7200 RPM
- ThinkPad R51 PM 1600 256MB 40GB WXPP:5400 RPM
Graphics card interface
- IBM THINKPAD T43 P M-1.86 (750)CENT. 512/60G/15/DVDRW/WXP US:PCI Express
- ThinkPad R51 PM 1600 256MB 40GB WXPP:Direct AGP
Battery life (max)
- IBM THINKPAD T43 P M-1.86 (750)CENT. 512/60G/15/DVDRW/WXP US:3.7 h
- ThinkPad R51 PM 1600 256MB 40GB WXPP:4 h
Dimensions (WxDxH)
- IBM THINKPAD T43 P M-1.86 (750)CENT. 512/60G/15/DVDRW/WXP US:329 x 268 x 31 mm
- ThinkPad R51 PM 1600 256MB 40GB WXPP:332 x 269 x 37 mm

Side by side

Differences highlightedShow differences only

Comparison of IBM THINKPAD T43 P M-1.86 (750)CENT. 512/60G/15/DVDRW/WXP US, ThinkPad R51 PM 1600 256MB 40GB WXPP
37 specifications	A Lenovo IBM THINKPAD T43 P M-1.86 (750)CENT. 512/60G/15/DVDRW/WXP US View product	B Lenovo ThinkPad R51 PM 1600 256MB 40GB WXPP View product
Processor2 differ
Processor frequencyDiffers	1.86 GHz	1.6 GHz
Processor front side busDiffers	533 MHz	400 MHz
Memory1 differ
Internal memoryDiffers	0.5 GB	0.25 GB
Internal memory typeKnown for one	DDR2-SDRAM	Unknown — not stated by the source
Storage2 differ
Total storage capacityDiffers	60 GB	40 GB
HDD speedDiffers	7200 RPM	5400 RPM
Graphics1 differ
Discrete graphics cardKnown for one	Yes	Unknown — not stated by the source
Discrete graphics card modelKnown for one	AMD Mobility Radeon X300	Unknown — not stated by the source
Maximum graphics card memoryKnown for one	0.064 GB	Unknown — not stated by the source
Graphics card interfaceDiffers	PCI Express	Direct AGP
Audioidentical
Audio systemKnown for one	stereo	Unknown — not stated by the source
Network1 differ
Networking featuresDiffers	Ethernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11a/IEEE 802.11b/IEEE 802.11g/Bluetooth	Ethernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11b/IEEE 802.11g/Bluetooth
Ports & interfaces1 differ
I/O portsDiffers	-AC adapter -Docking/Port Replicator -External microphone -External Display -Headphone/Line out -S-Video out -2 USB 2.0 -Parallel -RJ-11 -Infrared -RJ-45	-S-Video out -2 USB 2.0 -RJ-45 -Parallel -RJ-11 -Headphone/Line out -Infrared -IEEE 1394 -Line in -AC adapter -Expansion Bus port (for Dock II/Mini Dock or Port Replicator II) -External microphone -External Display, USB, parallel, RJ-11, RJ-45, FIR, IEEE 1394
Battery1 differ
Battery life (max)Differs	3.7 h	4 h
Weight & dimensions1 differ
WeightKnown for one	2.4 kg	Unknown — not stated by the source
Dimensions (WxDxH)Differs	329 x 268 x 31 mm	332 x 269 x 37 mm
WidthKnown for one	Unknown — not stated by the source	332 mm
DepthKnown for one	Unknown — not stated by the source	269 mm
Other features1 differ
Security featuresDiffers	-IBM Embedded Security Subsystem 2.0 -IBM Security Slot -Hard disk drive password -Integrated fingerprint reader -Power-on password -Supervisor password	-IBM Embedded Security Subsystem 2.0 -IBM Security Slot -Power-on password -Supervisor password -Hard disk drive password
Optical driveidentical
CD read speedKnown for one	Unknown — not stated by the source	24x
CD write speedKnown for one	Unknown — not stated by the source	24x
CD rewrite speedKnown for one	Unknown — not stated by the source	24x
DVD read speedKnown for one	Unknown — not stated by the source	8x

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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