Product comparison · 2 laptops

Lenovo IBM THINKPAD R51 P M-1.7(735) CENT. 256/40G/14/DVD/CDRW/WXP US vs Lenovo THINKPAD T42 P M-1.6 256/30G/14/DVD CDRW COMBO/WXP US

27specifications compared
8differ
19identical
10known for one product only

Key differences

The Lenovo IBM THINKPAD R51 P M-1.7(735) CENT. 256/40G/14/DVD/CDRW/WXP US has 0.1 GHz more processor frequency than the Lenovo THINKPAD T42 P M-1.6 256/30G/14/DVD CDRW COMBO/WXP US (1.7 GHz vs 1.6 GHz). The Lenovo IBM THINKPAD R51 P M-1.7(735) CENT. 256/40G/14/DVD/CDRW/WXP US has 10 GB more total storage capacity than the Lenovo THINKPAD T42 P M-1.6 256/30G/14/DVD CDRW COMBO/WXP US (40 GB vs 30 GB). The Lenovo THINKPAD T42 P M-1.6 256/30G/14/DVD CDRW COMBO/WXP US has 1.3 h more battery life (max) than the Lenovo IBM THINKPAD R51 P M-1.7(735) CENT. 256/40G/14/DVD/CDRW/WXP US (5.3 h vs 4 h). Discrete graphics card model: AMD Mobility Radeon on the Lenovo IBM THINKPAD R51 P M-1.7(735) CENT. 256/40G/14/DVD/CDRW/WXP US, AMD Mobility Radeon 7500 on the Lenovo THINKPAD T42 P M-1.6 256/30G/14/DVD CDRW COMBO/WXP US. Dimensions (WxDxH): 314 x 260 x 33 mm on the Lenovo IBM THINKPAD R51 P M-1.7(735) CENT. 256/40G/14/DVD/CDRW/WXP US, 311 x 255 x 27 mm on the Lenovo THINKPAD T42 P M-1.6 256/30G/14/DVD CDRW COMBO/WXP US.

Processor frequency
- IBM THINKPAD R51 P M-1.7(735) CENT. 256/40G/14/DVD/CDRW/WXP US:1.7 GHz
- THINKPAD T42 P M-1.6 256/30G/14/DVD CDRW COMBO/WXP US:1.6 GHz
Total storage capacity
- IBM THINKPAD R51 P M-1.7(735) CENT. 256/40G/14/DVD/CDRW/WXP US:40 GB
- THINKPAD T42 P M-1.6 256/30G/14/DVD CDRW COMBO/WXP US:30 GB
Discrete graphics card model
- IBM THINKPAD R51 P M-1.7(735) CENT. 256/40G/14/DVD/CDRW/WXP US:AMD Mobility Radeon
- THINKPAD T42 P M-1.6 256/30G/14/DVD CDRW COMBO/WXP US:AMD Mobility Radeon 7500
Battery life (max)
- IBM THINKPAD R51 P M-1.7(735) CENT. 256/40G/14/DVD/CDRW/WXP US:4 h
- THINKPAD T42 P M-1.6 256/30G/14/DVD CDRW COMBO/WXP US:5.3 h
Weight
- IBM THINKPAD R51 P M-1.7(735) CENT. 256/40G/14/DVD/CDRW/WXP US:2.6 kg
- THINKPAD T42 P M-1.6 256/30G/14/DVD CDRW COMBO/WXP US:2 kg
Dimensions (WxDxH)
- IBM THINKPAD R51 P M-1.7(735) CENT. 256/40G/14/DVD/CDRW/WXP US:314 x 260 x 33 mm
- THINKPAD T42 P M-1.6 256/30G/14/DVD CDRW COMBO/WXP US:311 x 255 x 27 mm

Side by side

Differences highlightedShow differences only

Comparison of IBM THINKPAD R51 P M-1.7(735) CENT. 256/40G/14/DVD/CDRW/WXP US, THINKPAD T42 P M-1.6 256/30G/14/DVD CDRW COMBO/WXP US
37 specifications	A Lenovo IBM THINKPAD R51 P M-1.7(735) CENT. 256/40G/14/DVD/CDRW/WXP US View product	B Lenovo THINKPAD T42 P M-1.6 256/30G/14/DVD CDRW COMBO/WXP US View product
Displayidentical
Contrast ratio (typical)Known for one	750:1	Unknown — not stated by the source
Processor1 differ
Processor manufacturerKnown for one	Unknown — not stated by the source	Intel
Processor frequencyDiffers	1.7 GHz	1.6 GHz
Processor front side busKnown for one	400 MHz	Unknown — not stated by the source
Memoryidentical
Internal memory typeKnown for one	DDR-SDRAM	Unknown — not stated by the source
Storage1 differ
Total storage capacityDiffers	40 GB	30 GB
HDD speedKnown for one	Unknown — not stated by the source	4200 RPM
Optical drive typeKnown for one	Unknown — not stated by the source	DVD-ROM
Graphics1 differ
Discrete graphics card modelDiffers	AMD Mobility Radeon	AMD Mobility Radeon 7500
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	stereo
Network1 differ
Networking featuresDiffers	Ethernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11b/IEEE 802.11g/Bluetooth	Ethernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11b/IEEE 802.11g
Softwareidentical
Bundled softwareKnown for one	Unknown — not stated by the source	Access IBM, IBM Access Connections, IBM Client Security Software (web-downloadable), IBM Drive Letter Access by Sonic, IBM Record Now, IBM Rescue and Recovery with Rapid Restore, Norton AntiVirus 2004 with 90 days of virus definition upgrades, PC-Doctor, IBM fingerprint software, InterVideo WinDVD C
Battery1 differ
Battery life (max)Differs	4 h	5.3 h
Weight & dimensions2 differ
WeightDiffers	2.6 kg	2 kg
Dimensions (WxDxH)Differs	314 x 260 x 33 mm	311 x 255 x 27 mm
Hard driveidentical
Storage drive typeKnown for one	Unknown — not stated by the source	ATA-100 (Enhanced IDE)
Other features1 differ
Security featuresDiffers	-Supervisor password -Hard disk drive password -IBM Embedded Security Subsystem 2.0 -IBM Security Slot -Power-on password	-Power-on password -Supervisor password -Hard disk drive password -IBM Embedded Security Subsystem 2.0 -IBM Security Slot
Battery typeKnown for one	Unknown — not stated by the source	6 cell Li-Ion battery pack

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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