Product comparison · 2 laptops

Lenovo ThinkPad 420 Intel® Core™ i5 i5-2540M vs Lenovo ThinkPad T420si Intel® Core™ i3 i3-2310M

129specifications compared
30differ
99identical
35known for one product only

Key differences

Processor family
- ThinkPad 420 Intel® Core™ i5 i5-2540M:Intel® Core™ i5
- ThinkPad T420si Intel® Core™ i3 i3-2310M:Intel® Core™ i3
Processor generation
- ThinkPad 420 Intel® Core™ i5 i5-2540M:2nd gen Intel® Core™ i5
- ThinkPad T420si Intel® Core™ i3 i3-2310M:2nd gen Intel® Core™ i3
Processor model
- ThinkPad 420 Intel® Core™ i5 i5-2540M:i5-2540M
- ThinkPad T420si Intel® Core™ i3 i3-2310M:i3-2310M
Processor frequency
- ThinkPad 420 Intel® Core™ i5 i5-2540M:2.6 GHz
- ThinkPad T420si Intel® Core™ i3 i3-2310M:2.1 GHz
Tjunction
- ThinkPad 420 Intel® Core™ i5 i5-2540M:100 C
- ThinkPad T420si Intel® Core™ i3 i3-2310M:100 °C
CPU multiplier (bus/core ratio)
- ThinkPad 420 Intel® Core™ i5 i5-2540M:26
- ThinkPad T420si Intel® Core™ i3 i3-2310M:21
Graphics card family
- ThinkPad 420 Intel® Core™ i5 i5-2540M:Intel
- ThinkPad T420si Intel® Core™ i3 i3-2310M:Intel, NVIDIA
On-board graphics card dynamic frequency (max)
- ThinkPad 420 Intel® Core™ i5 i5-2540M:1300 MHz
- ThinkPad T420si Intel® Core™ i3 i3-2310M:1100 MHz

Side by side

Differences highlightedShow differences only

Comparison of 420, T420si
164 specifications	A Lenovo ThinkPad 420 Intel® Core™ i5 i5-2540M Model 420 View product	B Lenovo ThinkPad T420si Intel® Core™ i3 i3-2310M Model T420si View product
Designidentical
Product colour	Black	Black
Form factorKnown for one	Unknown — not stated by the source	Clamshell
Displayidentical
Display diagonal	35.6 cm (14")	35.6 cm (14")
Display resolutionKnown for one	Unknown — not stated by the source	1600 x 900 pixels
HD typeKnown for one	Unknown — not stated by the source	HD+
LED backlight	Yes	Yes
Native aspect ratioKnown for one	Unknown — not stated by the source	16:9
Display brightnessKnown for one	Unknown — not stated by the source	230 cd/m²
Processor7 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i5	Intel® Core™ i3
Processor generationDiffers	2nd gen Intel® Core™ i5	2nd gen Intel® Core™ i3
Processor modelDiffers	i5-2540M	i3-2310M
Processor cores	2	2
Processor threads	4	4
Processor frequencyDiffers	2.6 GHz	2.1 GHz
System bus rate	5 GT/s	5 GT/s
Processor cache	3 MB	3 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 seriesDiffers	Intel Core i5-2500 Mobile Series	Intel Core i3-2300 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
TjunctionDiffers	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)Differs	26	21
ECC supported by processor	No	No
Processor boost frequencyKnown for one	3.3 GHz	Unknown — not stated by the source
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	8 GB	8 GB
Storageidentical
Total storage capacity	320 GB	320 GB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacity	320 GB	320 GB
HDD interface	SATA	SATA
Optical drive typeKnown for one	Unknown — not stated by the source	DVD±RW
Card reader integrated	Yes	Yes
Compatible memory cardsKnown for one	Unknown — not stated by the source	MMC, SD, SDHC, xD
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
Graphics2 differ
On-board graphics card	Yes	Yes
Discrete graphics cardKnown for one	Unknown — not stated by the source	Yes
Discrete graphics card modelKnown for one	Unknown — not stated by the source	NVIDIA® NVS™ 4200M
Graphics card familyDiffers	Intel	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)Differs	1300 MHz	1100 MHz
On-board graphics card ID	0x116	0x116
Audio1 differ
Audio systemDiffers	HD	HDA
Number of built-in speakersKnown for one	Unknown — not stated by the source	2
Speaker powerKnown for one	Unknown — not stated by the source	1.5 W
Built-in microphone	Yes	Yes
Cameraidentical
Front camera resolution (numeric)Known for one	Unknown — not stated by the source	1.3 MP
Front camera resolutionKnown for one	Unknown — not stated by the source	1280 x 720 pixels
Optical drive1 differ
LightScribeDiffers	No	Yes
Network2 differ
Wi-Fi	Yes	Yes
Networking featuresKnown for one	Unknown — not stated by the source	Gigabit Ethernet, WLAN, BT
Wi-Fi standardsDiffers	802.11a, 802.11b, 802.11g	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	Yes	Yes
Ethernet LAN data ratesKnown for one	Unknown — not stated by the source	10,100,1000 Mbit/s
BluetoothDiffers	No	Yes
Networking standardsKnown for one	Unknown — not stated by the source	IEEE 802.3, IEEE 802.3ab, IEEE 802.3u
Integrated 4G WiMAX	Yes	Yes
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Ports & interfaces3 differ
USB 2.0 ports quantity	2	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	0	1
eSATA/USB 2.0 ports quantityDiffers	1	0
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
Mini DisplayPorts quantityKnown for one	Unknown — not stated by the source	0
DVI port	No	No
VGA (D-Sub) ports quantityDiffers	0	1
Firewire (IEEE 1394) ports	0	0
Thunderbolt ports quantity	0	0
Micro HDMI ports quantityKnown for one	Unknown — not stated by the source	0
Mini VGA ports quantityKnown for one	Unknown — not stated by the source	0
Headphone outputs	1	1
S/PDIF out port	No	No
Combo headphone/mic portKnown for one	Unknown — not stated by the source	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
PS/2 ports quantityKnown for one	Unknown — not stated by the source	0
Parallel ports quantityKnown for one	Unknown — not stated by the source	0
Serial ports quantityKnown for one	Unknown — not stated by the source	0
Performanceidentical
Motherboard chipset	Intel® QM67 Express	Intel® QM67 Express
Keyboard1 differ
Pointing deviceKnown for one	Unknown — not stated by the source	Touchpad
Numeric keypad	No	No
Full-size keyboardDiffers	Yes	No
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Drivers includedKnown for one	Yes	Unknown — not stated by the source
Processor special features8 differ
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 TechnologyDiffers	Yes	No
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)Differs	Yes	No
Intel® AES New Instructions (Intel® AES-NI)Differs	Yes	No
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™Differs	No	Yes
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Turbo Boost TechnologyDiffers	2.0	No
Processor ARK IDDiffers	50072	52220
Processor codeDiffers	SR046	SR04S
Processor package sizeDiffers	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)	37.5 x 37.5 xrPGA988B); 31 x 24 (BGA1023)
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Batteryidentical
Battery technologyKnown for one	Unknown — not stated by the source	Lithium-Ion (Li-Ion)
Number of battery cellsKnown for one	Unknown — not stated by the source	6
Battery capacityKnown for one	Unknown — not stated by the source	43.2 Wh
Poweridentical
AC adapter frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
DC-in jack	Yes	Yes
Security1 differ
Cable lock slotDiffers	No	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Fingerprint readerKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions4 differ
WeightDiffers	2.24 kg	1.79 kg
WidthDiffers	340 mm	343 mm
Depth	230 mm	230 mm
Height (front)Differs	3 cm	2.12 cm
Height (rear)Differs	3.04 cm	2.6 cm
Packaging contentidentical
AC adapter included	Yes	Yes
Other featuresidentical
Infrared data port	No	No
Intel segment tagging	Home office, Small Business	Home office, Small Business
Supplied AC adapter type	AC	AC
Power supply typeKnown for one	AC - DC	Unknown — not stated by the source

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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