Product comparison · 2 laptops

Lenovo T420 DOS CH vs Lenovo X220 DOS US

135specifications compared
17differ
118identical
4known for one product only

Key differences

Display diagonal
- T420 DOS CH:35.8 cm (14.1")
- X220 DOS US:31.8 cm (12.5")
Display resolution
- T420 DOS CH:1600 x 900 pixels
- X220 DOS US:1366 x 768 pixels
Total storage capacity
- T420 DOS CH:500 GB
- X220 DOS US:320 GB
HDD capacity
- T420 DOS CH:500 GB
- X220 DOS US:320 GB
Optical drive type
- T420 DOS CH:DVD-RW
- X220 DOS US:No
Discrete graphics card model
- T420 DOS CH:NVIDIA® NVS™ 4200M
- X220 DOS US:Intel® HD Graphics 3000
Graphics card family
- T420 DOS CH:NVIDIA
- X220 DOS US:Intel
USB 2.0 ports quantity
- T420 DOS CH:3
- X220 DOS US:2

Side by side

Differences highlightedShow differences only

Comparison of T420 DOS CH, X220 DOS US
139 specifications	A Lenovo T420 DOS CH View product	B Lenovo X220 DOS US View product
Designidentical
Product colour	Black	Black
Display2 differ
Display diagonalDiffers	35.8 cm (14.1")	31.8 cm (12.5")
Display resolutionDiffers	1600 x 900 pixels	1366 x 768 pixels
HD typeKnown for one	HD+	Unknown — not stated by the source
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surface	Matt	Matt
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i7	Intel® Core™ i7
Processor generation	2nd gen Intel® Core™ i7	2nd gen Intel® Core™ i7
Processor model	i7-2620M	i7-2620M
Processor cores	2	2
Processor threads	4	4
Processor boost frequency	3.4 GHz	3.4 GHz
Processor frequency	2.7 GHz	2.7 GHz
System bus rate	5 GT/s	5 GT/s
Processor cache	4 MB	4 MB
Processor cache type	Smart Cache	Smart Cache
Processor socket	BGA 1023	BGA 1023
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Core i7-2600 Mobile Series	Intel Core i7-2600 Mobile Series
Processor codename	Sandy Bridge	Sandy Bridge
Bus type	DMI	DMI
FSB Parity	No	No
Stepping	J1	J1
Thermal Design Power (TDP)	35 W	35 W
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x16, 2x8, 1x8+2x4	1x16, 2x8, 1x8+2x4
PCI Express slots version	2.0	2.0
CPU multiplier (bus/core ratio)	27	27
ECC supported by processor	No	No
Memoryidentical
Internal memory	4 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1333 MHz	1333 MHz
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memory	16 GB	16 GB
Storage3 differ
Total storage capacityDiffers	500 GB	320 GB
HDD capacityDiffers	500 GB	320 GB
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Optical drive typeDiffers	DVD-RW	No
Card reader integrated	Yes	Yes
Graphics2 differ
On-board graphics card	Yes	Yes
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	NVIDIA® NVS™ 4200M	Intel® HD Graphics 3000
Graphics card familyDiffers	NVIDIA	Intel
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics 3000	Intel® HD Graphics 3000
On-board graphics card base frequency	650 MHz	650 MHz
On-board graphics card dynamic frequency (max)	1300 MHz	1300 MHz
On-board graphics card ID	0x116	0x116
Network1 differ
Wi-Fi	Yes	Yes
Networking features	Gigabit Ethernet	Gigabit Ethernet
Wi-Fi standardsDiffers	802.11a, 802.11b, 802.11g	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	Yes	Yes
Bluetooth	Yes	Yes
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Integrated 4G WiMAX	Yes	Yes
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	3	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	0	1
eSATA/USB 2.0 ports quantity	0	0
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantity	0	0
eSATA ports quantityDiffers	1	0
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	0	0
DisplayPorts quantity	1	1
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) ports	0	0
Thunderbolt ports quantity	0	0
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connectorKnown for one	No	Unknown — not stated by the source
ExpressCard slot	Yes	Yes
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
Modem (RJ-11) portsKnown for one	1	Unknown — not stated by the source
TV-out	No	No
Performanceidentical
Motherboard chipset	Intel® QM67 Express	Intel® QM67 Express
Keyboardidentical
Pointing device	Touchpad	Touchpad
Softwareidentical
Operating system installed	FreeDOS	FreeDOS
Processor special featuresidentical
Intel® Wireless Display (Intel® WiDi)	Yes	Yes
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithography	32 nm	32 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	Yes	Yes
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	Yes	Yes
Intel Fast Memory Access	Yes	Yes
Intel Flex Memory Access	Yes	Yes
Intel Identity Protection Technology version	1.00	1.00
Intel Rapid Storage Technology	No	No
Intel Trusted Execution Technology	Yes	Yes
Intel VT-x with Extended Page Tables (EPT)	Yes	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	Yes	Yes
Intel® AES New Instructions (Intel® AES-NI)	Yes	Yes
Intel® Anti-Theft Technology (Intel® AT)	Yes	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® InTru™ 3D Technology	Yes	Yes
Intel® Insider™	Yes	Yes
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK ID	52231	52231
Processor code	SR041	SR041
Processor package size	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Batteryidentical
Number of battery cells	9	9
Poweridentical
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Fingerprint reader	Yes	Yes
Weight & dimensions5 differ
WeightDiffers	2.35 kg	1.65 kg
WidthDiffers	341 mm	305 mm
DepthDiffers	258 mm	230 mm
Height (front)Differs	3 cm	1.9 cm
Height (rear)Differs	3.1 cm	3.5 cm
Other features1 differ
Infrared data port	No	No
Power supply type	AC/DC	AC/DC
Internal modemDiffers	Yes	No
TV tuner integrated	No	No
Intel segment taggingKnown for one	Home office, Small Business	Unknown — not stated by the source
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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