Lenovo ThinkPad T420 (4178A56) specs.
Laptops Specs >> Lenovo >> Lenovo ThinkPad T420 (4178A56)| Specifications | | | Reviews | | | Useful keys |
| Screenshot |
Processor Lenovo ThinkPad T420 (4178A56)
Processor speed:
2.8 GHz
Processor family:
Intel Core i7-2xxx
Processor:
i7-2640M
Processor boost frequency:
3.5 GHz
Processor core:
2
Processor threads:
4
System bus data transfer rate:
5 GT/s
Processor cache:
4 MB
Processor cache type:
Smart Cache
Chipset:
Intel QM67 Express
Maximum number of PCI Express lanes:
16
PCI Express slots version:
2.0
PCI Express configurations:
1x16, 2x8
Thermal Design Power (TDP):
35 W
Processor series:
Intel Core i7-2600 Mobile series
Processor manufacturer:
Intel
FSB Parity:
No
Integrated 4G WiMAX:
Worldwide Interoperability for Microwave Access
Worldwide Interoperability for Microwave AccessYes
CPU multiplier (bus/core ratio):
28
Tjunction:
100 C°C
Stepping:
J1
Processor lithography:
32 nm
Bus type:
DMI
Processor codename:
Sandy Bridge
Processor operating modes:
64-bit
Conflict Free processor:
No
ECC supported by processor:
No
Memory Lenovo ThinkPad T420 (4178A56)
Internal memory:
4 GB
Internal memory type:
DDR3-SDRAM
Memory clock speed:
1333 MHz
Memory slots:
2x SO-DIMM
Maximum internal memory:
8 GB
Storage Lenovo ThinkPad T420 (4178A56)
Total storage capacity:
160 GB
Storage media:
SSD
Solid-state drive capacity:
160 GB
Solid-state drive interfaces:
SATA
Card reader integrated:
Yes
Compatible memory cards:
MMC, SD, SDHC, SDXC
Display Lenovo ThinkPad T420 (4178A56)
Screen Size:
14"
Screen Resolution:
1600 x 900 pixels
LED backlight:
Yes
HD type:
HD+
3D compatibility:
No
Display surface:
Matt
Aspect ratio:
16:9
Display brightness:
230 cd/m²
Contrast ratio (typical):
300:1
Graphics Lenovo ThinkPad T420 (4178A56)
On-board graphics adapter:
Yes
Discrete graphics adapter:
No
On-board graphics adapter family:
Intel HD Graphics
On-board graphics adapter model:
Intel HD Graphics 3000
On-board graphics adapter base frequency:
650 MHz
On-board graphics adapter dynamic frequency (max):
1300 MHz
Number of displays supported (on-board graphics):
2
Discrete graphics adapter model:
Not available
On-board graphics adapter ID:
0x116
Optical Drive Lenovo ThinkPad T420 (4178A56)
Optical drive type:
DVD±RW
LightScribe:
No
Audio Lenovo ThinkPad T420 (4178A56)
Audio system:
HDA
Audio system full duplex:
No
Audio system direct 3D sound:
No
Number of built-in speakers:
2
Speaker power:
1 W
Built-in subwoofer:
No
Built-in microphone:
Yes
Networking Lenovo ThinkPad T420 (4178A56)
Bluetooth:Bluetooth is used to exchange data between nearby mobile devices.
Bluetooth is used to exchange data between nearby mobile devices.No
3G:Third generation cellular network
Third generation cellular networkNo
Networking features:
1Gb Ethernet
Wi-Fi:Wireless lan technology
Wireless lan technologyYes
Wi-Fi standards:
802.11a, 802.11g, 802.11n
Ethernet LAN connection:
Yes
Data network:
Not supported
Cabling technology:
10/100/1000Base-T(X)
4G WiMAX:
No
Ports & interfaces Lenovo ThinkPad T420 (4178A56)
USB 2.0 ports quantity:
3
eSATA/USB 2.0 ports quantity:
1
VGA (D-Sub) ports quantity:
1
DisplayPorts quantity:
1
DVI port:Digital Visual Interface
Digital Visual InterfaceNo
Ethernet LAN (RJ-45) ports quantity:
1
Headphone outputs:
1
Microphone in:
Yes
S/PDIF out port:Sony/Philips Digital Interface
Sony/Philips Digital InterfaceNo
Docking connector:
No
DC-in jack:
Yes
ExpressCard slot:
Yes
CardBus PCMCIA slot type:Personal Computer Memory Card International Association
Personal Computer Memory Card International AssociationNo
SmartCard slot:
No
TV out port:
No
Ports & interfaces Lenovo ThinkPad T420 (4178A56)
Line-in:
No
Performance Lenovo ThinkPad T420 (4178A56)
TV tuner integrated:
No
Keyboard Lenovo ThinkPad T420 (4178A56)
Pointing device:
ThinkPad UltraNav
Keyboard type:
QWERTY
Numeric keypad:
No
Full-size keyboard:
No
Keyboard number of keys:
89
Software Lenovo ThinkPad T420 (4178A56)
Operating system installed:
Windows 7 Professional
Operating system architecture:
64-bit
Drivers included:
Yes
Battery Lenovo ThinkPad T420 (4178A56)
Battery technology:
Lithium-Ion (Li-Ion)
Battery life (max):
9 h
Energy Management Lenovo ThinkPad T420 (4178A56)
AC adapter power:
90 W
AC adapter frequency:
50/60 Hz
Security Lenovo ThinkPad T420 (4178A56)
Cable lock slot:
Yes
Fingerprint reader:
Yes
Trusted Platform Module (TPM):
Yes
Password protection:
BIOS
Weight & Dimensions Lenovo ThinkPad T420 (4178A56)
Weight:
4.94 lbs (2,24 kg)
Width:
13.4" (340 mm)
Depth:
9.05" (229,8 mm)
Height (front):
1.18" (2,99 cm)
Height (rear):
1.2" (3,04 cm)
Width (imperial):
13.4"
Depth (imperial):
9.05"
Height (front) (imperial):
1.18"
Height (rear) (imperial):
1.20"
Reviews, Questions about Lenovo ThinkPad T420 (4178A56)
Write Review / Ask a question about Lenovo ThinkPad T420 (4178A56)
Razer presented at CES 2025 an updated version of the gaming laptop Blade 16. The main feature of the 2025 model is the combination of flagship hardware and a case with a thickness of only 14.9 mm - the brand was able to combine these two qualities with the help of an advanced cooling system.
Two gaming models have been added to the ASUS notebook catalog. ROG Zephyrus G16 features RTX 5090 graphics card and 64GB of RAM, while the more compact Zephyrus G14 with 14-inch display boasts a powerful RTX 5080 discrete graphics card.
HP showed the flagship gaming laptop Omen Max 16 at CES 2025. The novelty was equipped with high-performance Intel and AMD processors, complemented by NVIDIA gas pedals, a large amount of memory and a screen with top features.