Product comparison · 2 laptops

Lenovo ThinkPad T420 Intel® Core™ i7 i7-2620M vs Lenovo ThinkPad T520 Intel® Core™ i7 i7-2620M

149specifications compared
10differ
139identical
4known for one product only

Key differences

Display diagonal
- ThinkPad T420 Intel® Core™ i7 i7-2620M:35.6 cm (14")
- ThinkPad T520 Intel® Core™ i7 i7-2620M:39.6 cm (15.6")
Maximum resolution
- ThinkPad T420 Intel® Core™ i7 i7-2620M:2048 x 1536 pixels
- ThinkPad T520 Intel® Core™ i7 i7-2620M:1600 x 900 pixels
USB 2.0 ports quantity
- ThinkPad T420 Intel® Core™ i7 i7-2620M:2
- ThinkPad T520 Intel® Core™ i7 i7-2620M:3
Battery life (max)
- ThinkPad T420 Intel® Core™ i7 i7-2620M:9 h
- ThinkPad T520 Intel® Core™ i7 i7-2620M:11 h
Weight
- ThinkPad T420 Intel® Core™ i7 i7-2620M:2.24 kg
- ThinkPad T520 Intel® Core™ i7 i7-2620M:2.51 kg
Width
- ThinkPad T420 Intel® Core™ i7 i7-2620M:340 mm
- ThinkPad T520 Intel® Core™ i7 i7-2620M:373 mm
Depth
- ThinkPad T420 Intel® Core™ i7 i7-2620M:229.8 mm
- ThinkPad T520 Intel® Core™ i7 i7-2620M:245 mm
Height
- ThinkPad T420 Intel® Core™ i7 i7-2620M:21.2 mm
- ThinkPad T520 Intel® Core™ i7 i7-2620M:35.6 mm

Side by side

Differences highlightedShow differences only

Comparison of T420, T520
153 specifications	A Lenovo ThinkPad T420 Intel® Core™ i7 i7-2620M Model T420 View product	B Lenovo ThinkPad T520 Intel® Core™ i7 i7-2620M Model T520 View product
Designidentical
Product colourKnown for one	Unknown — not stated by the source	Black
Display1 differ
Display diagonalDiffers	35.6 cm (14")	39.6 cm (15.6")
Display resolution	1600 x 900 pixels	1600 x 900 pixels
HD type	HD+	HD+
Native aspect ratio	16:9	16:9
Display brightnessKnown for one	230 cd/m²	Unknown — not stated by the source
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
L3 cache	4 MB	4 MB
L2 cache	4 MB	4 MB
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
Memory clock speed	1333 MHz	1333 MHz
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memory	8 GB	8 GB
Storageidentical
Total storage capacity	500 GB	500 GB
HDD capacity	500 GB	500 GB
HDD interface	SATA	SATA
HDD speed	5400 RPM	5400 RPM
Optical drive type	DVD-RW	DVD-RW
Card reader integrated	Yes	Yes
Graphics1 differ
On-board graphics card	Yes	Yes
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
Maximum resolutionDiffers	2048 x 1536 pixels	1600 x 900 pixels
Audioidentical
Audio system	HDA	HDA
Number of built-in speakers	2	2
Speaker power	1 W	1 W
Audio included	Mute Button, Speakers (integrated)	Mute Button, Speakers (integrated)
Networkidentical
Mobile network connectionKnown for one	Unknown — not stated by the source	Yes
Mobile network generationKnown for one	Unknown — not stated by the source	3G
Wi-Fi	Yes	Yes
Networking features	Gigabit Ethernet	Gigabit Ethernet
Wireless technology	Wi-Fi	Wi-Fi
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 & interfaces1 differ
USB 2.0 ports quantityDiffers	2	3
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0	0
eSATA/USB 2.0 ports quantity	1	1
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantity	0	0
eSATA ports quantity	0	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 connector	No	No
ExpressCard slot	Yes	Yes
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
TV-out	No	No
Performanceidentical
Motherboard chipset	Intel® QM67 Express	Intel® QM67 Express
Keyboardidentical
Pointing device	ThinkPad UltraNav	ThinkPad UltraNav
Keyboard type	7-row with Trackpoint	7-row with Trackpoint
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architecture	64-bit	64-bit
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
Battery1 differ
Battery life (max)Differs	9 h	11 h
Poweridentical
AC adapter power	65 W	65 W
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	No	No
Sustainabilityidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR
Weight & dimensions6 differ
WeightDiffers	2.24 kg	2.51 kg
WidthDiffers	340 mm	373 mm
DepthDiffers	229.8 mm	245 mm
HeightDiffers	21.2 mm	35.6 mm
Height (front)Differs	2.99 cm	3.18 cm
Height (rear)Differs	3.04 cm	3.56 cm
Hard driveidentical
Storage drive type	500GB SATA/ 7200	500GB SATA/ 7200
Packaging contentidentical
AC adapter included	Yes	Yes
Other featuresidentical
Security features	Client Security Solution, Hard disk drive password, Power-on password, Security lock slot, Supervisor password Fingerprint Reader	Client Security Solution, Hard disk drive password, Power-on password, Security lock slot, Supervisor password Fingerprint Reader
Infrared data port	No	No
Battery type	6 Cell Lithium-Ion	6 Cell Lithium-Ion
Compliance industry standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Power requirements	100 - 240V	100 - 240V
Power supply type	AC/DC	AC/DC
Modem speed	56 Kbit/s	56 Kbit/s
Modem type	56K V.92	56K V.92
Intel segment tagging	Home office, Small Business	Home office, Small Business
Manageability features	Client Security Solution, ThinkVantage Access Connections, ThinkVantage Active Protection System, ThinkVantage Rescue and Recovery	Client Security Solution, ThinkVantage Access Connections, ThinkVantage Active Protection System, ThinkVantage Rescue and Recovery
Drive bays	Ultrabay Enhanced	Ultrabay Enhanced
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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