Product comparison · 2 laptops

Lenovo T490 + USB-C Dock Gen 2(40AS0090AU) vs Lenovo X1 Carbon + Bag(4X40H75820) & Mouse(4X30M56887)

130specifications compared
19differ
111identical
29known for one product only

Key differences

The Lenovo T490 + USB-C Dock Gen 2(40AS0090AU) has 8 GB more internal memory than the Lenovo X1 Carbon + Bag(4X40H75820) & Mouse(4X30M56887) (16 GB vs 8 GB). The Lenovo T490 + USB-C Dock Gen 2(40AS0090AU) has 267 MHz more memory clock speed than the Lenovo X1 Carbon + Bag(4X40H75820) & Mouse(4X30M56887) (2400 MHz vs 2133 MHz). The Lenovo T490 + USB-C Dock Gen 2(40AS0090AU) has 40 GB more maximum internal memory than the Lenovo X1 Carbon + Bag(4X40H75820) & Mouse(4X30M56887) (48 GB vs 8 GB). Only the Lenovo T490 + USB-C Dock Gen 2(40AS0090AU) has card reader integrated. Internal memory type: DDR4-SDRAM on the Lenovo T490 + USB-C Dock Gen 2(40AS0090AU), LPDDR3-SDRAM on the Lenovo X1 Carbon + Bag(4X40H75820) & Mouse(4X30M56887).

Internal memory
- T490 + USB-C Dock Gen 2(40AS0090AU):16 GB
- X1 Carbon + Bag(4X40H75820) & Mouse(4X30M56887):8 GB
Internal memory type
- T490 + USB-C Dock Gen 2(40AS0090AU):DDR4-SDRAM
- X1 Carbon + Bag(4X40H75820) & Mouse(4X30M56887):LPDDR3-SDRAM
Memory clock speed
- T490 + USB-C Dock Gen 2(40AS0090AU):2400 MHz
- X1 Carbon + Bag(4X40H75820) & Mouse(4X30M56887):2133 MHz
Memory form factor
- T490 + USB-C Dock Gen 2(40AS0090AU):On-board + SO-DIMM
- X1 Carbon + Bag(4X40H75820) & Mouse(4X30M56887):On-board
Maximum internal memory
- T490 + USB-C Dock Gen 2(40AS0090AU):48 GB
- X1 Carbon + Bag(4X40H75820) & Mouse(4X30M56887):8 GB
Total storage capacity
- T490 + USB-C Dock Gen 2(40AS0090AU):256 GB
- X1 Carbon + Bag(4X40H75820) & Mouse(4X30M56887):512 GB
Total SSDs capacity
- T490 + USB-C Dock Gen 2(40AS0090AU):256 GB
- X1 Carbon + Bag(4X40H75820) & Mouse(4X30M56887):512 GB
SSD capacity
- T490 + USB-C Dock Gen 2(40AS0090AU):256 GB
- X1 Carbon + Bag(4X40H75820) & Mouse(4X30M56887):512 GB

Side by side

Differences highlightedShow differences only

Comparison of T490 + USB-C Dock Gen 2(40AS0090AU), X1 Carbon + Bag(4X40H75820) & Mouse(4X30M56887)
159 specifications	A Lenovo T490 + USB-C Dock Gen 2(40AS0090AU)View product	B Lenovo X1 Carbon + Bag(4X40H75820) & Mouse(4X30M56887)View product
Designidentical
Product type	Laptop	Laptop
Product colour	Black	Black
Form factor	Clamshell	Clamshell
Housing materialKnown for one	Unknown — not stated by the source	Carbon fibre, Magnesium
Displayidentical
Display diagonal	35.6 cm (14")	35.6 cm (14")
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Dual-screen	No	No
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i5	Intel® Core™ i5
Processor generation	8th gen Intel® Core™ i5	8th gen Intel® Core™ i5
Processor model	i5-8265U	i5-8265U
Processor cores	4	4
Processor threads	8	8
Processor boost frequency	3.9 GHz	3.9 GHz
Processor frequency	1.6 GHz	1.6 GHz
System bus rate	4 GT/s	4 GT/s
Processor cache	6 MB	6 MB
Processor cache type	Smart Cache	Smart Cache
Processor socket	BGA 1528	BGA 1528
Processor lithography	14 nm	14 nm
Processor operating modes	64-bit	64-bit
Processor codename	Whiskey Lake	Whiskey Lake
Bus type	OPI	OPI
Thermal Design Power (TDP)	15 W	15 W
Configurable TDP-up frequency	1.8 GHz	1.8 GHz
Configurable TDP-up	25 W	25 W
Configurable TDP-down	10 W	10 W
Configurable TDP-down frequency	0.8 GHz	0.8 GHz
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x4, 2x2	1x4, 2x2
PCI Express slots version	3.0	3.0
Memory5 differ
Internal memoryDiffers	16 GB	8 GB
Internal memory typeDiffers	DDR4-SDRAM	LPDDR3-SDRAM
Memory clock speedDiffers	2400 MHz	2133 MHz
Memory form factorDiffers	On-board + SO-DIMM	On-board
Maximum internal memoryDiffers	48 GB	8 GB
Maximum internal memory (64-bit)Known for one	Unknown — not stated by the source	8 GB
Memory slotsKnown for one	1x SO-DIMM	Unknown — not stated by the source
Storage4 differ
Total storage capacityDiffers	256 GB	512 GB
Storage media	SSD	SSD
Total SSDs capacityDiffers	256 GB	512 GB
Number of SSDs installed	1	1
SSD capacityDiffers	256 GB	512 GB
Optical drive type	No	No
Card reader integratedDiffers	Yes	No
Compatible memory cardsKnown for one	MicroSD (TransFlash)	Unknown — not stated by the source
Graphicsidentical
On-board graphics card	Yes	Yes
Discrete graphics cardKnown for one	Unknown — not stated by the source	No
Discrete graphics card modelKnown for one	Unknown — not stated by the source	Not available
On-board graphics card family	Intel® UHD Graphics	Intel® UHD Graphics
On-board graphics card model	Intel® UHD Graphics	Intel® UHD Graphics
Maximum on-board graphics card memory	32 GB	32 GB
On-board graphics card base frequency	300 MHz	300 MHz
On-board graphics card dynamic frequency (max)	1100 MHz	1100 MHz
On-board graphics card DirectX version	12.0	12.0
On-board graphics card OpenGL version	4.5	4.5
On-board graphics card ID	0x3EA0	0x3EA0
Audio2 differ
Audio chipDiffers	Realtek ALC3287	Realtek ALC3286
Number of built-in speakersDiffers	2	4
Built-in microphone	Yes	Yes
Audio decodersKnown for one	Unknown — not stated by the source	Dolby Atmos
Audio systemKnown for one	Dolby Audio Premium	Unknown — not stated by the source
Speaker powerKnown for one	2 W	Unknown — not stated by the source
Cameraidentical
Front camera	Yes	Yes
Front camera HD type	HD	HD
Front camera signal format	720p	720p
Privacy cameraKnown for one	Unknown — not stated by the source	Yes
Privacy typeKnown for one	Unknown — not stated by the source	Privacy shutter
Auto focus	No	No
Network1 differ
Wi-Fi	Yes	Yes
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)	Wi-Fi 5 (802.11ac)
Wi-Fi standardsDiffers	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Antenna type	2x2	2x2
WLAN controller model	Intel Dual Band Wireless-AC 9560	Intel Dual Band Wireless-AC 9560
Bluetooth	Yes	Yes
Bluetooth version	5.0	5.0
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
Ports & interfaces2 differ
USB 2.0 ports quantity	0	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantityDiffers	1	0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityKnown for one	Unknown — not stated by the source	0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityDiffers	1	2
HDMI ports quantity	1	1
HDMI version	1.4b	1.4b
DisplayPorts quantity	0	0
Thunderbolt 3 ports quantity	0	0
Combo headphone/mic port	Yes	Yes
USB Type-C DisplayPort Alternate ModeKnown for one	Unknown — not stated by the source	Yes
USB Sleep-and-Charge	Yes	Yes
USB Sleep-and-Charge ports	1	1
Ethernet LAN (RJ-45) portsKnown for one	1	Unknown — not stated by the source
Headphone outputsKnown for one	1	Unknown — not stated by the source
Microphone inKnown for one	No	Unknown — not stated by the source
Docking connectorKnown for one	Yes	Unknown — not stated by the source
Keyboardidentical
Pointing device	ThinkPad UltraNav	ThinkPad UltraNav
Numeric keypad	No	No
Spill-resistant keyboard	Yes	Yes
Windows keys	Yes	Yes
Softwareidentical
Operating system installed	Windows 10 Pro	Windows 10 Pro
Operating system architectureKnown for one	64-bit	Unknown — not stated by the source
Processor special featuresidentical
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	Yes	Yes
Intel Enhanced Halt State	Yes	Yes
Intel Flex Memory Access	Yes	Yes
Intel Identity Protection Technology version	1.00	1.00
Intel Secure Key Technology version	1.00	1.00
Intel Smart Response Technology version	1.00	1.00
Intel Software Guard Extensions (Intel SGX)	Yes	Yes
Intel Stable Image Platform Program (SIPP)	No	No
Intel Stable Image Platform Program (SIPP) version	0.00	0.00
Intel TSX-NI	No	No
Intel TSX-NI version	0.00	0.00
Intel Trusted Execution Technology	No	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)	Yes	Yes
Intel® AES New Instructions (Intel® AES-NI)	Yes	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	Yes	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® OS Guard	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Secure Key	Yes	Yes
Intel® Smart Response Technology	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK ID	149088	149088
Processor package size	46x24 mm	46x24 mm
Supported instruction sets	AVX 2.0, SSE4.1, SSE4.2	AVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
Battery3 differ
Battery technologyDiffers	Lithium Polymer (LiPo)	Lithium-Ion (Li-Ion)
Battery capacityDiffers	50 Wh	51 Wh
Battery life (max)Differs	16.11 h	18.3 h
Fast chargingKnown for one	Yes	Unknown — not stated by the source
Poweridentical
USB Type-C charging portKnown for one	Unknown — not stated by the source	Yes
USB Power Delivery (USB PD)Known for one	Unknown — not stated by the source	Yes
Securityidentical
Cable lock slot	Yes	Yes
Smart card readerKnown for one	Unknown — not stated by the source	No
Trusted Platform Module (TPM)	Yes	Yes
Password protection	Yes	Yes
Password protection type	HDD, Power on, Supervisor	HDD, Power on, Supervisor
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS
CertificationKnown for one	Unknown — not stated by the source	MIL-STD-810G
Sustainabilityidentical
Sustainability certificatesKnown for one	Unknown — not stated by the source	EPEAT Silver, ENERGY STAR
Weight & dimensions2 differ
WidthDiffers	329 mm	323 mm
DepthDiffers	227 mm	217 mm
HeightKnown for one	17.9 mm	Unknown — not stated by the source
Packaging contentidentical
AC adapter included	Yes	Yes
Other featuresidentical
3D	No	No
Optical driveidentical
LightScribeKnown for one	No	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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