Product comparison · 2 laptops

Lenovo ThinkPad R400 Intel® Core™2 Duo P8700 vs Lenovo ThinkPad x220 Tablet

78specifications compared
47differ
31identical
86known for one product only

Key differences

Display diagonal
- ThinkPad R400 Intel® Core™2 Duo P8700:35.8 cm (14.1")
- ThinkPad x220 Tablet:31.8 cm (12.5")
Display resolution
- ThinkPad R400 Intel® Core™2 Duo P8700:1280 x 800 pixels
- ThinkPad x220 Tablet:1366 x 768 pixels
Native aspect ratio
- ThinkPad R400 Intel® Core™2 Duo P8700:16:10
- ThinkPad x220 Tablet:16:9
Processor family
- ThinkPad R400 Intel® Core™2 Duo P8700:Intel® Core™2 Duo
- ThinkPad x220 Tablet:Intel® Core™ i5
Processor model
- ThinkPad R400 Intel® Core™2 Duo P8700:P8700
- ThinkPad x220 Tablet:i5-2520M
Processor threads
- ThinkPad R400 Intel® Core™2 Duo P8700:2
- ThinkPad x220 Tablet:4
Processor frequency
- ThinkPad R400 Intel® Core™2 Duo P8700:2.53 GHz
- ThinkPad x220 Tablet:2.5 GHz
Processor cache type
- ThinkPad R400 Intel® Core™2 Duo P8700:L2
- ThinkPad x220 Tablet:Smart Cache

Side by side

Differences highlightedShow differences only

Comparison of R400, ThinkPad x220 Tablet
164 specifications	A Lenovo ThinkPad R400 Intel® Core™2 Duo P8700 Model R400 View product	B Lenovo ThinkPad x220 Tablet View product
Display3 differ
Display diagonalDiffers	35.8 cm (14.1")	31.8 cm (12.5")
Display resolutionDiffers	1280 x 800 pixels	1366 x 768 pixels
HD typeKnown for one	Not supported	Unknown — not stated by the source
LED backlightKnown for one	No	Unknown — not stated by the source
Native aspect ratioDiffers	16:10	16:9
TouchscreenKnown for one	Unknown — not stated by the source	Yes
Processor14 differ
Processor familyDiffers	Intel® Core™2 Duo	Intel® Core™ i5
Processor modelDiffers	P8700	i5-2520M
Processor threadsDiffers	2	4
Processor frequencyDiffers	2.53 GHz	2.5 GHz
Processor cache typeDiffers	L2	Smart Cache
Processor front side busKnown for one	1066 MHz	Unknown — not stated by the source
Processor socketDiffers	Socket 479	Socket 988
Processor lithographyDiffers	45 nm	32 nm
Processor seriesDiffers	Intel Core 2 Duo P8000 Series	Intel Core i5-2500 Mobile Series
Processor codenameDiffers	Penryn	Sandy Bridge
Bus typeDiffers	FSB	DMI
SteppingDiffers	R0	J1
Thermal Design Power (TDP)Differs	25 W	35 W
TjunctionDiffers	105 °C	100 °C
Number of Processing Die TransistorsKnown for one	410 M	Unknown — not stated by the source
Processing Die sizeKnown for one	107 mm²	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Differs	9.5	25
Processor generationKnown for one	Unknown — not stated by the source	2nd gen Intel® Core™ i5
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.2 GHz
System bus rateKnown for one	Unknown — not stated by the source	5 GT/s
Maximum number of PCI Express lanesKnown for one	Unknown — not stated by the source	16
PCI Express configurationsKnown for one	Unknown — not stated by the source	1x16, 2x8, 1x8+2x4
PCI Express slots versionKnown for one	Unknown — not stated by the source	2.0
Memory2 differ
Internal memoryDiffers	3 GB	2 GB
Internal memory typeKnown for one	DDR3-SDRAM	Unknown — not stated by the source
Maximum internal memoryDiffers	4 GB	8 GB
Memory clock speedKnown for one	Unknown — not stated by the source	1333 MHz
Memory slotsKnown for one	Unknown — not stated by the source	2x SO-DIMM
Storage3 differ
Total storage capacityKnown for one	160 GB	Unknown — not stated by the source
Storage mediaKnown for one	HDD	Unknown — not stated by the source
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
HDD capacityDiffers	160 GB	320 GB
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
Optical drive typeDiffers	DVD-ROM	No
Compatible memory cardsDiffers	MMC, MS Pro, SD, SDHC, xD	SD
Graphics2 differ
Discrete graphics cardKnown for one	No	Unknown — not stated by the source
Discrete graphics card modelKnown for one	Not available	Unknown — not stated by the source
On-board graphics card familyDiffers	Intel® GMA	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® GMA 4500MHD	Intel® HD Graphics 3000
On-board graphics card base frequencyKnown for one	Unknown — not stated by the source	650 MHz
On-board graphics card dynamic frequency (max)Known for one	Unknown — not stated by the source	1300 MHz
On-board graphics card IDKnown for one	Unknown — not stated by the source	0x116
Maximum resolutionKnown for one	Unknown — not stated by the source	1366 x 768 pixels
Graphics cardKnown for one	Unknown — not stated by the source	HD Graphics
Audioidentical
Audio systemKnown for one	HD	Unknown — not stated by the source
Speaker powerKnown for one	Unknown — not stated by the source	2 W
Audio includedKnown for one	Unknown — not stated by the source	Mute Button, Speakers (integrated)
Cameraidentical
Front cameraKnown for one	No	Unknown — not stated by the source
Optical driveidentical
LightScribeKnown for one	No	Unknown — not stated by the source
Network1 differ
Wi-FiKnown for one	Yes	Unknown — not stated by the source
Wi-Fi standardsKnown for one	802.11a, 802.11g, Wi-Fi 4 (802.11n)	Unknown — not stated by the source
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
BluetoothDiffers	Yes	No
Wireless technologyKnown for one	Unknown — not stated by the source	WAN; LAN
Integrated 4G WiMAXKnown for one	Unknown — not stated by the source	Yes
Ports & interfaces1 differ
HDMI ports quantityKnown for one	0	Unknown — not stated by the source
DisplayPorts quantityKnown for one	0	Unknown — not stated by the source
DVI portKnown for one	No	Unknown — not stated by the source
Firewire (IEEE 1394) portsKnown for one	1	Unknown — not stated by the source
Thunderbolt ports quantityKnown for one	0	Unknown — not stated by the source
S/PDIF out portKnown for one	No	Unknown — not stated by the source
Docking connectorDiffers	Yes	No
ExpressCard slotKnown for one	Yes	Unknown — not stated by the source
CardBus PCMCIA slots quantityKnown for one	0	Unknown — not stated by the source
CardBus PCMCIA slot typeKnown for one	No	Unknown — not stated by the source
SmartCard slotKnown for one	Yes	Unknown — not stated by the source
TV-outKnown for one	No	Unknown — not stated by the source
Keyboardidentical
Pointing deviceKnown for one	ThinkPad UltraNav	Unknown — not stated by the source
Keyboard typeKnown for one	Unknown — not stated by the source	7-row with Trackpoint
Software1 differ
Operating system installedDiffers	Windows Vista Business	Windows 7 Professional
Operating system architectureKnown for one	Unknown — not stated by the source	64-bit
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows 7
Processor special features19 differ
Intel® Wireless Display (Intel® WiDi)Differs	No	Yes
Intel Dual Display Capable TechnologyDiffers	No	Yes
Intel FDI TechnologyDiffers	No	Yes
Intel Fast Memory AccessDiffers	No	Yes
Intel Flex Memory AccessDiffers	No	Yes
Intel VT-x with Extended Page Tables (EPT)Differs	No	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
Intel® AES New Instructions (Intel® AES-NI)Differs	No	Yes
Intel® Anti-Theft Technology (Intel® AT)Differs	No	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	No	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Intel® InTru™ 3D TechnologyDiffers	No	Yes
Intel® My WiFi Technology (Intel® MWT)Differs	No	Yes
Intel® Quick Sync Video TechnologyDiffers	No	Yes
Intel® Turbo Boost TechnologyDiffers	No	2.0
Processor ARK IDDiffers	37006	52229
Processor codeDiffers	SLGFE	SR048
Processor package sizeDiffers	35 x 35 mm	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)
Thermal Monitoring TechnologiesDiffers	No	Yes
CPU configuration (max)Known for one	Unknown — not stated by the source	1
Graphics & IMC lithographyKnown for one	Unknown — not stated by the source	32 nm
Intel Identity Protection Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel® Identity Protection Technology (Intel® IPT)Known for one	Unknown — not stated by the source	Yes
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Supported instruction setsKnown for one	Unknown — not stated by the source	AVX
Batteryidentical
Battery technologyKnown for one	Lithium-Ion (Li-Ion)	Unknown — not stated by the source
Number of battery cellsKnown for one	6	Unknown — not stated by the source
Poweridentical
AC adapter frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
AC adapter input voltageKnown for one	110 - 240 V	Unknown — not stated by the source
AC adapter powerKnown for one	Unknown — not stated by the source	65 W
Securityidentical
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
Cable lock slot typeKnown for one	IBM	Unknown — not stated by the source
Fingerprint readerKnown for one	Yes	Unknown — not stated by the source
HDD user passwordKnown for one	Yes	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	5 - 35 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	30 - 80%	Unknown — not stated by the source
Weight & dimensions1 differ
WeightDiffers	2.4 kg	1.76 kg
WidthKnown for one	Unknown — not stated by the source	305 mm
DepthKnown for one	Unknown — not stated by the source	295 mm
HeightKnown for one	Unknown — not stated by the source	20.7 mm
Packaging contentidentical
AC adapter includedKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
Infrared data portKnown for one	No	Unknown — not stated by the source
Internal modemKnown for one	Yes	Unknown — not stated by the source
Modem speedKnown for one	56 Kbit/s	Unknown — not stated by the source
Security featuresKnown for one	Unknown — not stated by the source	Hard disk drive password, Norton Internet Security, Power on password, Security Slot Fingerprint Reader
Battery typeKnown for one	Unknown — not stated by the source	6 Cell Lithium-Ion
Modem typeKnown for one	Unknown — not stated by the source	No
Manageability featuresKnown for one	Unknown — not stated by the source	1-Button system recovery, Automatic software and driver updates, Help, Lenovo Care, Password management, Simple network connectivity
Supplied AC adapter typeKnown for one	Unknown — not stated by the source	AC
Designidentical
Product typeKnown for one	Unknown — not stated by the source	Hybrid (2-in-1)
Product colourKnown for one	Unknown — not stated by the source	Black
Form factorKnown for one	Unknown — not stated by the source	Convertible (Swivel)
Performanceidentical
GPS (satellite)Known for one	Unknown — not stated by the source	No
Hard driveidentical
Storage drive typeKnown for one	Unknown — not stated by the source	320GB SATA/ 7200

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.

More laptop comparisons

All laptop comparisons