Product comparison · 2 laptops

Lenovo T420 + 45N6678 vs Lenovo T420s + ThinkPad Mini Dock Series 3

129specifications compared
11differ
118identical
8known for one product only

Key differences

Total storage capacity
- T420 + 45N6678:500 GB
- T420s + ThinkPad Mini Dock Series 3:160 GB
Discrete graphics card model
- T420 + 45N6678:Intel® HD Graphics 3000
- T420s + ThinkPad Mini Dock Series 3:NVIDIA® NVS™ 4200M
Graphics card family
- T420 + 45N6678:Intel
- T420s + ThinkPad Mini Dock Series 3:NVIDIA
Bluetooth
- T420 + 45N6678:No
- T420s + ThinkPad Mini Dock Series 3:Yes
USB 2.0 ports quantity
- T420 + 45N6678:3
- T420s + ThinkPad Mini Dock Series 3:2
Battery life (max)
- T420 + 45N6678:9 h
- T420s + ThinkPad Mini Dock Series 3:5.5 h
Weight
- T420 + 45N6678:2.2 kg
- T420s + ThinkPad Mini Dock Series 3:1.67 kg
Width
- T420 + 45N6678:340.5 mm
- T420s + ThinkPad Mini Dock Series 3:343 mm

Side by side

Differences highlightedShow differences only

Comparison of T420 + 45N6678, T420s + ThinkPad Mini Dock Series 3
137 specifications	A Lenovo T420 + 45N6678 View product	B Lenovo T420s + ThinkPad Mini Dock Series 3 View product
Displayidentical
Display diagonal	35.6 cm (14")	35.6 cm (14")
Display resolution	1600 x 900 pixels	1600 x 900 pixels
HD type	HD+	HD+
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display brightness	250 cd/m²	250 cd/m²
Contrast ratio (typical)	300:1	300:1
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 speedKnown for one	1333 MHz	Unknown — not stated by the source
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memory	8 GB	8 GB
Storage1 differ
Total storage capacityDiffers	500 GB	160 GB
HDD interfaceKnown for one	SATA	Unknown — not stated by the source
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
Optical drive type	DVD-RW	DVD-RW
Card reader integrated	Yes	Yes
Compatible memory cards	MMC, SD, SDHC, SDXC	MMC, SD, SDHC, SDXC
SSD capacityKnown for one	Unknown — not stated by the source	160 GB
SSD interfaceKnown for one	Unknown — not stated by the source	SATA
Graphics2 differ
On-board graphics card	Yes	Yes
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	Intel® HD Graphics 3000	NVIDIA® NVS™ 4200M
Graphics card familyDiffers	Intel	NVIDIA
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
Audioidentical
Audio system	High Definition Audio	High Definition Audio
Number of built-in speakers	2	2
Speaker power	1 W	1 W
Network1 differ
Mobile network connection	Yes	Yes
Mobile network generation	3G	3G
Wi-Fi	Yes	Yes
Networking features	Gigabit Ethernet	Gigabit Ethernet
Ethernet LAN	Yes	Yes
BluetoothDiffers	No	Yes
Integrated 4G WiMAX	Yes	Yes
Bluetooth versionKnown for one	Unknown — not stated by the source	3.0+HS
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	3	2
eSATA/USB 2.0 ports quantityKnown for one	1	Unknown — not stated by the source
Ethernet LAN (RJ-45) ports	1	1
DisplayPorts quantity	1	1
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connector	Yes	Yes
ExpressCard slot	Yes	Yes
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	Yes	Yes
TV-out	No	No
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	Unknown — not stated by the source	1
Performanceidentical
Motherboard chipset	Intel® QM67 Express	Intel® QM67 Express
Keyboardidentical
Pointing device	ThinkPad UltraNav	ThinkPad UltraNav
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
Number of battery cells	6	6
Battery life (max)Differs	9 h	5.5 h
Poweridentical
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	IBM	IBM
Fingerprint reader	Yes	Yes
Weight & dimensions5 differ
WeightDiffers	2.2 kg	1.67 kg
WidthDiffers	340.5 mm	343 mm
DepthDiffers	233 mm	230.1 mm
Height (front)Differs	3.01 cm	2.12 cm
Height (rear)Differs	3.05 cm	2.6 cm
Other featuresidentical
Infrared data port	No	No
Intel segment tagging	Home office, Small Business	Home office, Small Business

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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