Product comparison · 2 laptops

Lenovo ThinkPad 23253GS laptop Intel® Core™ i7 i7-3520M vs Lenovo X1 Carbon Touch

130specifications compared
36differ
94identical
65known for one product only

Key differences

Product type
- ThinkPad 23253GS laptop Intel® Core™ i7 i7-3520M:Laptop
- X1 Carbon Touch:Ultrabook
Display diagonal
- ThinkPad 23253GS laptop Intel® Core™ i7 i7-3520M:31.8 cm (12.5")
- X1 Carbon Touch:35.6 cm (14")
Display resolution
- ThinkPad 23253GS laptop Intel® Core™ i7 i7-3520M:1366 x 768 pixels
- X1 Carbon Touch:1600 x 900 pixels
Touchscreen
- ThinkPad 23253GS laptop Intel® Core™ i7 i7-3520M:No
- X1 Carbon Touch:Yes
Display brightness
- ThinkPad 23253GS laptop Intel® Core™ i7 i7-3520M:200 cd/m²
- X1 Carbon Touch:300 cd/m²
Processor model
- ThinkPad 23253GS laptop Intel® Core™ i7 i7-3520M:i7-3520M
- X1 Carbon Touch:i7-3667U
Processor boost frequency
- ThinkPad 23253GS laptop Intel® Core™ i7 i7-3520M:3.6 GHz
- X1 Carbon Touch:3.2 GHz
Processor frequency
- ThinkPad 23253GS laptop Intel® Core™ i7 i7-3520M:2.9 GHz
- X1 Carbon Touch:2 GHz

Side by side

Differences highlightedShow differences only

Comparison of 23253GS, X1 Carbon Touch
195 specifications	A Lenovo ThinkPad 23253GS laptop Intel® Core™ i7 i7-3520M Model 23253GS View product	B Lenovo X1 Carbon Touch View product
Design1 differ
Product typeDiffers	Laptop	Ultrabook
Product colour	Black	Black
Form factor	Clamshell	Clamshell
Display4 differ
Display diagonalDiffers	31.8 cm (12.5")	35.6 cm (14")
Display resolutionDiffers	1366 x 768 pixels	1600 x 900 pixels
TouchscreenDiffers	No	Yes
Touchscreen typeKnown for one	Unknown — not stated by the source	Capacitive
HD typeKnown for one	Unknown — not stated by the source	HD+
Touch technologyKnown for one	Unknown — not stated by the source	Multi-touch
Display number of coloursKnown for one	Unknown — not stated by the source	16.78 million colours
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surfaceKnown for one	Unknown — not stated by the source	Matt
Display brightnessDiffers	200 cd/m²	300 cd/m²
Contrast ratio (typical)Known for one	300:1	Unknown — not stated by the source
Processor7 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i7	Intel® Core™ i7
Processor generation	3rd gen Intel® Core™ i7	3rd gen Intel® Core™ i7
Processor modelDiffers	i7-3520M	i7-3667U
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyDiffers	3.6 GHz	3.2 GHz
Processor frequencyDiffers	2.9 GHz	2 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	22 nm	22 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i7-3500 Mobile series	Intel Core i7-3600 Mobile series
Processor codename	Ivy Bridge	Ivy Bridge
Bus type	DMI	DMI
FSB Parity	No	No
Stepping	L1	L1
Thermal Design Power (TDP)Differs	35 W	17 W
Tjunction	105 °C	105 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x8, 1x16, 2x4, 2x8	1x8, 1x16, 2x4, 2x8
PCI Express slots versionDiffers	3.0	2.0
CPU multiplier (bus/core ratio)Differs	29	20
Maximum number of SMP processorsKnown for one	Unknown — not stated by the source	1
ECC supported by processor	No	No
Memory2 differ
Internal memoryDiffers	4 GB	8 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Maximum internal memoryDiffers	16 GB	8 GB
Maximum internal memory (64-bit)Known for one	Unknown — not stated by the source	8 GB
Memory clock speedKnown for one	1600 MHz	Unknown — not stated by the source
Memory layout (slots x size)Known for one	1 x 4 GB	Unknown — not stated by the source
Memory slotsKnown for one	2x SO-DIMM	Unknown — not stated by the source
Storage3 differ
Total storage capacityDiffers	180 GB	240 GB
Storage media	SSD	SSD
Number of HDDs installedKnown for one	Unknown — not stated by the source	0
HDD capacityKnown for one	Unknown — not stated by the source	0 GB
Number of SSDs installed	1	1
SSD capacityDiffers	180 GB	240 GB
SSD interfaceKnown for one	Unknown — not stated by the source	SATA III
Optical drive typeKnown for one	Unknown — not stated by the source	No
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	MMC, SD, SDHC, SDXC	MMC, SD
Graphics2 differ
On-board graphics card	Yes	Yes
Graphics card familyKnown for one	Unknown — not stated by the source	Intel
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics 4000	Intel® HD Graphics 4000
On-board graphics card base frequencyDiffers	650 MHz	350 MHz
On-board graphics card dynamic frequency (max)Differs	1250 MHz	1150 MHz
On-board graphics card ID	0x166	0x166
Audio1 differ
Audio systemDiffers	HD	Dolby Home Theater v4
Built-in speaker(s)Known for one	Unknown — not stated by the source	Yes
Built-in microphone	Yes	Yes
Number of built-in speakersKnown for one	2	Unknown — not stated by the source
Speaker powerKnown for one	1 W	Unknown — not stated by the source
Optical driveidentical
LightScribeKnown for one	Unknown — not stated by the source	No
Network1 differ
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
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LANDiffers	Yes	No
Bluetooth	Yes	Yes
WWANKnown for one	Unknown — not stated by the source	Not installed
Integrated 4G WiMAX	Yes	Yes
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
Bluetooth versionKnown for one	4.0	Unknown — not stated by the source
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Ports & interfaces4 differ
USB 2.0 ports quantity	1	1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	2	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 quantity	0	0
Ethernet LAN (RJ-45) portsDiffers	1	0
HDMI ports quantity	0	0
DisplayPorts quantity	0	0
Mini DisplayPorts quantity	1	1
DVI port	No	No
VGA (D-Sub) ports quantityDiffers	1	0
Firewire (IEEE 1394) ports	0	0
Thunderbolt ports quantity	0	0
S/PDIF out port	No	No
Combo headphone/mic port	Yes	Yes
ExpressCard slotDiffers	Yes	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
Headphone connectivityKnown for one	Unknown — not stated by the source	3.5 mm
Headphone outputsKnown for one	0	Unknown — not stated by the source
Microphone inKnown for one	No	Unknown — not stated by the source
Docking connectorKnown for one	No	Unknown — not stated by the source
Keyboardidentical
Pointing device	ThinkPad UltraNav	ThinkPad UltraNav
Keyboard backlitKnown for one	Unknown — not stated by the source	Yes
Numeric keypad	No	No
Island-style keyboardKnown for one	Unknown — not stated by the source	Yes
Full-size keyboardKnown for one	Unknown — not stated by the source	Yes
Keyboard layoutKnown for one	Unknown — not stated by the source	QWERTY
Spill-resistant keyboardKnown for one	Yes	Unknown — not stated by the source
Windows keysKnown for one	Yes	Unknown — not stated by the source
Software1 differ
Operating system installedDiffers	Windows 7 Professional	Windows 8 Pro
Operating system architecture	64-bit	64-bit
Processor special features3 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	22 nm	22 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 Secure Key Technology version	1.00	1.00
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® Secure Key	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)Known for one	Unknown — not stated by the source	No
Intel® Smart Cache	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK IDDiffers	64893	64898
Processor codeDiffers	SR0MU	SR0N5
Processor package sizeDiffers	37.5 x 37.5 (rPGA988B); 31.0 x 24.0 (BGA1023)	31 x 24 mm
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	Yes	Yes
Battery3 differ
Battery technologyDiffers	Lithium-Ion (Li-Ion)	Lithium Polymer (LiPo)
Number of battery cellsDiffers	6	4
Battery capacityKnown for one	Unknown — not stated by the source	45 Wh
Battery life (max)Differs	10.3 h	6.3 h
Poweridentical
AC adapter frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
AC adapter input voltageKnown for one	Unknown — not stated by the source	100 - 240 V
Power auto-sensingKnown for one	Unknown — not stated by the source	Yes
DC-in jack	Yes	Yes
Security1 differ
Cable lock slotDiffers	Yes	No
Fingerprint reader	Yes	Yes
Password protection typeKnown for one	Unknown — not stated by the source	Yes
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 35 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-15 - 60 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	15 - 80%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 90%
Weight & dimensions3 differ
WeightDiffers	1.5 kg	1.36 kg
WidthDiffers	305 mm	331 mm
DepthDiffers	206.5 mm	226 mm
HeightKnown for one	Unknown — not stated by the source	18.9 mm
Width (imperial)Known for one	Unknown — not stated by the source	33.1 cm (13")
Depth (imperial)Known for one	Unknown — not stated by the source	22.6 cm (8.9")
Height (imperial)Known for one	Unknown — not stated by the source	1.88 cm (0.74")
Height (front)Known for one	1.9 cm	Unknown — not stated by the source
Height (rear)Known for one	2.66 cm	Unknown — not stated by the source
Packaging contentidentical
AC adapter includedKnown for one	Unknown — not stated by the source	Yes
Cables includedKnown for one	Unknown — not stated by the source	AC
ManualKnown for one	Unknown — not stated by the source	Yes
Quick start guideKnown for one	Unknown — not stated by the source	Yes
Warranty cardKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
Infrared data portKnown for one	Unknown — not stated by the source	No
3DKnown for one	Unknown — not stated by the source	No
TV tuner integratedKnown for one	Unknown — not stated by the source	No
Intel segment taggingKnown for one	Unknown — not stated by the source	Enterprise, Small Business
Supplied AC adapter typeKnown for one	Unknown — not stated by the source	AC
Performanceidentical
Motherboard chipsetKnown for one	Intel HM77 Express	Unknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for one	EPEAT Gold, ENERGY STAR	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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