Product comparison · 2 laptops

Lenovo T 400 vs Lenovo ThinkPad R 500

96specifications compared
25differ
71identical
16known for one product only

Key differences

Display diagonal
- T 400:35.8 cm (14.1")
- ThinkPad R 500:39.1 cm (15.4")
Display resolution
- T 400:1400 x 900 pixels
- ThinkPad R 500:1280 x 800 pixels
Native aspect ratio
- T 400:14:9
- ThinkPad R 500:16:10
Processor model
- T 400:P8600
- ThinkPad R 500:T6570
Processor frequency
- T 400:2.4 GHz
- ThinkPad R 500:2.1 GHz
Processor cache
- T 400:3 MB
- ThinkPad R 500:2 MB
Processor socket
- T 400:Socket 479
- ThinkPad R 500:Socket 478
Processor operating modes
- T 400:64-bit
- ThinkPad R 500:32-bit, 64-bit

Side by side

Differences highlightedShow differences only

Comparison of T 400, ThinkPad R 500
112 specifications	A Lenovo T 400 View product	B Lenovo ThinkPad R 500 View product
Display3 differ
Display diagonalDiffers	35.8 cm (14.1")	39.1 cm (15.4")
Display resolutionDiffers	1400 x 900 pixels	1280 x 800 pixels
HD typeKnown for one	HD+	Unknown — not stated by the source
Native aspect ratioDiffers	14:9	16:10
Processor7 differ
Processor modelDiffers	P8600	T6570
Processor frequencyDiffers	2.4 GHz	2.1 GHz
Processor cacheDiffers	3 MB	2 MB
Processor front side busKnown for one	1066 MHz	Unknown — not stated by the source
Processor socketDiffers	Socket 479	Socket 478
Processor operating modesDiffers	64-bit	32-bit, 64-bit
Processor seriesKnown for one	Intel Core 2 Duo P8000 Series	Unknown — not stated by the source
Bus typeKnown for one	FSB	Unknown — not stated by the source
SteppingKnown for one	R1	Unknown — not stated by the source
Thermal Design Power (TDP)Differs	25 W	35 W
TjunctionDiffers	105 °C	100 °C
CPU multiplier (bus/core ratio)Known for one	9	Unknown — not stated by the source
Memory1 differ
Memory clock speedDiffers	1066 MHz	1333 MHz
Maximum internal memoryKnown for one	Unknown — not stated by the source	4 GB
Storageidentical
Optical drive typeKnown for one	DVD±RW	Unknown — not stated by the source
Audioidentical
Speaker powerKnown for one	Unknown — not stated by the source	2 W
Network1 differ
Wireless technologyDiffers	802.11a/g/b	802.11 b/g
Networking featuresKnown for one	Unknown — not stated by the source	1000Mbps, 100Mbps, 10Mbps
Ports & interfaces6 differ
Firewire (IEEE 1394) portsDiffers	1	0
Headphone outputsDiffers	1	2
S/PDIF out portDiffers	No	Yes
CardBus PCMCIA slots quantityDiffers	1	0
CardBus PCMCIA slot typeDiffers	Type II	No
Modem (RJ-11) portsDiffers	0	1
Processor special features3 differ
Idle StatesKnown for one	Yes	Unknown — not stated by the source
Intel Enhanced Halt StateDiffers	Yes	No
Intel Trusted Execution TechnologyDiffers	Yes	No
Processor ARK IDDiffers	35568	42841
Processor codeKnown for one	SLGDZ	Unknown — not stated by the source
Processor package sizeKnown for one	35 x 35 mm	Unknown — not stated by the source
Battery1 differ
Number of battery cellsKnown for one	9	Unknown — not stated by the source
Battery life (max)Differs	5 h	3 h
Weight & dimensions2 differ
WeightDiffers	2.23 kg	2.9 kg
Dimensions (WxDxH)Differs	335.5 x 239 x 28.6 mm	358 x 260 x 38.5 mm
Other features1 differ
Internal modemDiffers	No	Yes
Intel segment taggingKnown for one	Home office, Small Business	Unknown — not stated by the source
Modem speedKnown for one	Unknown — not stated by the source	56 Kbit/s

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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