Surface Pro 4 vs. Lenovo ThinkPad X1 Carbon Gen 6: Full specs comparison

We thoroughly analyzed technical specifications for Surface Pro 4 and Lenovo ThinkPad X1 Carbon Gen 6 models, including CPU, memory, storage, battery life, display quality, and other features.

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Surface Pro 4 image

Surface Pro 4

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Lenovo ThinkPad X1 Carbon Gen 6 image

Lenovo ThinkPad X1 Carbon Gen 6

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Surface Pro 4 Pros

Reasons that Surface Pro 4 is better than Lenovo ThinkPad X1 Carbon Gen 6.

About 33% lighter

Surface Pro 4 weighed 1.69 pounds, 33% lighter than the 2.49 pounds Lenovo ThinkPad X1 Carbon Gen 6.

WeightSurface Pro 4Lenovo ThinkPad X1 Carbon Gen 6
Pound
1.69 lbs.
2.49 lbs.
Kilogram
0.77 kg
1.13 kg

Lenovo ThinkPad X1 Carbon Gen 6 Pros

Reasons that Lenovo ThinkPad X1 Carbon Gen 6 is better than Surface Pro 4.

Significantly newer manufacturing

2018 vs. 2015

Much faster CPU performance

Intel Core i7-8650U inside Lenovo ThinkPad X1 Carbon Gen 6 has a 120% better multi-core CPU performance score than the Intel Core i7-6650U inside Surface Pro 4.

Geekbench 5 multi-core score
Lenovo ThinkPad X1 Carbon Gen 6 - Intel Core i7-8650U
3,879
Lenovo ThinkPad X1 Carbon Gen 6 - Intel Core i5-8350U
2,982
Lenovo ThinkPad X1 Carbon Gen 6 - Intel Core i5-8250U
1,971
Surface Pro 4 - Intel Core i7-6650U
1,757
Surface Pro 4 - Intel Core i5-6300U
1,319
Surface Pro 4 - Intel Core m3-6Y30
1,058
Supports faster memory

Lenovo ThinkPad X1 Carbon Gen 6 supports a faster memory speed than the Surface Pro 4. It supports up to 2133MHz versus 1866MHz of system memory on the Surface Pro 4.

Memory type and speed
Lenovo ThinkPad X1 Carbon Gen 6 - LPDDR3
2,133 MHz
Surface Pro 4 - LPDDR3
1,866 MHz
13% larger display

Lenovo ThinkPad X1 Carbon Gen 6 has a 14-inch screen size 13% larger than the 12.3-inch Surface Pro 4.

Display size
Lenovo ThinkPad X1 Carbon Gen 6
14-inch
Surface Pro 4
12.3-inch

Key Similars

Similar characteristics share between Surface Pro 4 and Lenovo ThinkPad X1 Carbon Gen 6.

Supports the same maximum memory size of up to 16GB

Both laptops supports up to 16GB of system memory.

Max system memory size
Surface Pro 4
16 GB
Lenovo ThinkPad X1 Carbon Gen 6
16 GB

Prices

Here are the latest price updates and offers for both devices.

Surface Pro 4 Price
Latest Microsoft Surface Pro 4 (2736 x 1824) Tablet 6th Generation (Intel Core i5-6300U, 8GB Ram, 256GB SSD, Bluetooth, Dual Camera) Windows 10 Professional (Renewed)
 Latest Microsoft Surface Pro 4 (2736 x 1824) Tablet 6th Generation (Intel Core i5-6300U, 8GB Ram, 256GB SSD, Bluetooth, Dual Camera) Windows 10 Professional (Renewed)
By Microsoft
$270.00
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Microsoft Surface Pro 4 (Intel Core M, 4GB RAM, 128GB) with Windows 10 Anniversary Update (Renewed)
 Microsoft Surface Pro 4 (Intel Core M, 4GB RAM, 128GB) with Windows 10 Anniversary Update (Renewed)
By Microsoft
$224.00
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Microsoft Surface Pro 4; 256 GB, 8 GB RAM, Intel Core i5 (Renewed)
 Microsoft Surface Pro 4; 256 GB, 8 GB RAM, Intel Core i5 (Renewed)
By Microsoft
$289.00
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Lenovo ThinkPad X1 Carbon Gen 6 Price
Lenovo ThinkPad X1 Carbon (6th Gen) 14-inch FHD Laptop, Intel Quad Core i7-8650U, 16GB RAM, 256GB NVMe-PCIe SSD, Fingerprint Reader, Windows 10 Pro, Black (Renewed)
 Lenovo ThinkPad X1 Carbon (6th Gen) 14-inch FHD Laptop, Intel Quad Core i7-8650U, 16GB RAM, 256GB NVMe-PCIe SSD, Fingerprint Reader, Windows 10 Pro, Black (Renewed)
By Lenovo
$329.00
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Lenovo X1 Carbon 6th Generation Ultrabook: Core i7-8550U, 16GB RAM, 512GB SSD, 14inch Full HD Display, Backlit Keyboard (Renewed)
 Lenovo X1 Carbon 6th Generation Ultrabook: Core i7-8550U, 16GB RAM, 512GB SSD, 14inch Full HD Display, Backlit Keyboard (Renewed)
By Lenovo
$325.00
$359.00 9% OFF
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Lenovo ThinkPad X1 Carbon (6th Gen) - Windows 10 Pro - Intel Quad Core i5-8350U, 256GB NVMe-PCIe SSD, 16GB RAM, 14 FHD IPS (1920x1080) Display, Fingerprint Reader, Black (Renewed)
 Lenovo ThinkPad X1 Carbon (6th Gen) - Windows 10 Pro - Intel Quad Core i5-8350U, 256GB NVMe-PCIe SSD, 16GB RAM, 14 FHD IPS (1920x1080) Display, Fingerprint Reader, Black (Renewed)
By Lenovo
$289.99
$319.00 9% OFF
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Specs Comparison

Availability

Surface Pro 4Lenovo ThinkPad X1 Carbon Gen 6
Released20152018
Release Date
  • Introduced: October 7, 2015
  • Pre-ordered: October 7, 2015
  • Released: October 26, 2015
-
PricingStarting at 899$-
Generations-

Exterior

Surface Pro 4Lenovo ThinkPad X1 Carbon Gen 6
Dimensions11.50” x 7.93” x 0.33” (292 mm x 201.42 mm x 8.4 mm)
Width: 11.50” (292 mm)
Height: 7.93” (201.42 mm)
Thickness: 0.33” (8.4 mm)
12.73” x 8.54” x 0.62” (323.5 x 217.1 x 15.95 mm)
Width: 12.73” (323.5 mm)
Depth: 8.54” (217.1 mm)
Height: 0.62” (15.95 mm)
Weight
  • Intel Core m3: 1.69 lbs (766 g)
  • Intel Core i5 and i7: 1.73 lbs (786 g)
Starting at 2.49 lbs (1.13 kg)
Colors
Silver
BlackBlack with color coded hinges
Keyboard and Trackpad
  • Surface Type Cover
    • Not included
    • Weight: 0.68 lb (310 g)
    • Dimension: 11.61 x 8.54 x 0.19 inches (295 mm x 216 mm x 5mm)
  • Keyboard:
    • Activation: Moving (mechanical) keys
    • Layout: QWERTY, full row of function keys (F1-F12)
    • 4 directional keys; Windows, Brightness and Media Controls Keys;
    • LED backlighting
  • Trackpad:
    • Precision glass trackpad.
    • Trackpad size: 4 x 2 inches (101.6 mm x 50.8 mm)
    • Supports a five-finger multitouch gesture.
  • Spill-resistant, Backlit with white LED lighting keyboard.
  • Trackpad + TrackPoint® pointing device.

Display

Surface Pro 4Lenovo ThinkPad X1 Carbon Gen 6
Size12.3 Inches14 Inches
Info
  • Resolution: 2736 x 1824 (5M Pixels)
  • Density: 267 PPI
  • PixelSense™ Display
  • Contrast ratio: 1300:1
  • Aspect ratio: 3:2
  • Inking: designed together with Surface Pen
  • Touch: 10 points multi-touch with GPU-based processing
  • 100 percent sRGB color, individually calibrated
  • 14” FHD
    1920 x 1080, IPS, 60Hz, anti-glare, 300 nits, multi-touch.
  • 14” WQHD
    2560 x 1440, IPS, 60Hz, anti-glare, 300 nits, multi-touch.
  • 14” HDR WQHD
    2560 x 1440, IPS, 60Hz, glossy, Dolby Vision™ HDR, 500 nits, multi-touch.

Ports

Surface Pro 4Lenovo ThinkPad X1 Carbon Gen 6
Surface Pro 4 Ports
Image Source: Microsoft
Left (1)
  • 1 x headphone jack
    Headphone/Microphone
Right (3)
  • 1 x Mini DisplayPort
  • 1 x USB-A
    USB 3.0 (5 Gbps)
  • 1 x Surface Connect
    Charging, Docking Station
Bottom (1)
  • 1 x Type Cover port
Under Kickstand (1)
  • 1 x microSD card slot
  • 2 x Thunderbolt™ 3
    Supports Power Delivery & DisplayPort.
  • 2 x USB 3.1 Gen 1
    Full-size USB-A ports always on.
  • 1 x Network extension for Ethernet/side mechanical docking
  • 1 x HDMI 1.4
  • 1 x Headphone / mic combo
  • 1 x MicroSD card reader
  • 1 x WWAN slot (Fibocom L850-GL 4G LTE-A cat 9) (optional)
  • 1 x Power button
  • 1 x Kensington lock slot

Internal Specs

Surface Pro 4Lenovo ThinkPad X1 Carbon Gen 6
Processor
  1. 6th Gen Intel® Core™ m3-6Y30
    2 cores, 4 threads, 0.90 → 2.20 GHz, 4MB SmartCache, 4.5W
  2. 6th Gen Intel® Core™ i5-6300U
    2 cores, 4 threads, 2.40 → 3.00 GHz, 3MB SmartCache, 15W
  3. 6th Gen Intel® Core™ i7-6650U
    2 cores, 4 threads, 2.20 → 3.40 GHz, 4MB SmartCache, 15W
  1. 8th Gen Intel® Core™ i5-8250U
    4 cores, 8 threads, 1.60 → 3.40 GHz, 6MB SmartCache, 15W
  2. 8th Gen Intel® Core™ i5-8350U
    4 cores, 8 threads, 1.70 → 3.60 GHz, 6MB SmartCache, 15W
  3. 8th Gen Intel® Core™ i7-8650U
    4 cores, 8 threads, 1.90 → 4.20 GHz, 8MB SmartCache, 15W
Integrated Graphics
  1. 6th Gen Intel® Core™ m3-6Y30
    Intel® HD Graphics 515
    24 Execution Units, 300 → 850 MHz
  2. 6th Gen Intel® Core™ i5-6300U
    Intel® HD Graphics 520
    24 Execution Units, 300 → 1000 MHz
  3. 6th Gen Intel® Core™ i7-6650U
    Intel® Iris® Graphics 540
    48 Execution Units with 64 MB eDRAM side cache, 300 → 1050 MHz
  1. 8th Gen Intel® Core™ i5-8250U
    Intel® UHD Graphics 620
    24 Execution Units, 300 → 1100 MHz
  2. 8th Gen Intel® Core™ i5-8350U
    Intel® UHD Graphics 620
    24 Execution Units, 300 → 1100 MHz
  3. 8th Gen Intel® Core™ i7-8650U
    Intel® UHD Graphics 620
    24 Execution Units, 300 → 1150 MHz
Memory
4GB 8GB 16GB
1866 MHz LPDDR3 RAM
  • 8GB 16GB
    2133 MHz Dual-channel LPDDR3 SRAM.
Storage
128 GB 256 GB 512 GB 1 TB
PCIe NVMe SSD
  • 256 GB 512 GB 1 TB
    M.2 2280 PCIe NVMe (Replaceable).

Connectivity

Surface Pro 4Lenovo ThinkPad X1 Carbon Gen 6
Wi-Fi
  • Wi-Fi 5: IEEE 802.11 a/b/g/n/ac compatible.
  • Intel® Dual-Band Wireless-AC(2x2) 8265
    Up to 867 Mbps, Dual band 2.4 GHz/5 GHz, 802.11 a/b/g/n/ac.
Bluetooth
  • Bluetooth Wireless 4.0 technology
  • Bluetooth 4.1
More-
  • WWAN: Fibocom L850-GL 4G LTE-A cat 9

Battery

Surface Pro 4Lenovo ThinkPad X1 Carbon Gen 6
Size38.2 Wh
  • 3-cell smart lithium-ion
  • Battery Capacity: 57 Wh
Battery LifeUp to 9 hours of video playback
  • Up to 15 hours
* Tested with MobileMark 2014
Power Supply
  • 36W proprietary power supply
    • USB-A output: 5W
    • Surface Connect: 31W
65 W USB (Type-C) power adapter
Supports Rapid Charge.

Software

Surface Pro 4Lenovo ThinkPad X1 Carbon Gen 6
OSWindows 10 Pro
  • Windows 10 Home 64-bit
Built-in AppsMicrosoft Office 30-days trial
  • Lenovo Vantage

Camera & Audio

Surface Pro 4Lenovo ThinkPad X1 Carbon Gen 6
Camera
  • Windows Hello face authentication camera (front-facing)
  • 5.0MP front-facing camera with 1080p Skype HD video
  • 8.0MP rear-facing autofocus camera with 1080p full HD video
  • Front-facing camera
    720p (1280 x 720 HD) camera.
  • IR Facial Authentication (optional)
Audio
  • Dual microphones
  • Front-facing stereo speakers with Dolby® Audio
  • Dolby Audio™ Premium
  • Dolby Atmos® for headphones
  • Noise-cancelling dual-array far-field microphones

Misc

Surface Pro 4Lenovo ThinkPad X1 Carbon Gen 6
InkingSupports Surface Pen
1024 levels of pressure
magnetic storage
-
Sensors
  • Ambient light sensor
  • Accelerometer
  • Gyroscope
  • Magnetometer
  • Windows Hello compliant fingerprint reader on the palm rest
  • Optional IR Camera
  • Ambient light sensor
Security
  • HW TPM 2.0 chip for enterprise security
  • Enterprise-grade protection with Windows Hello face sign-in
  • Fast Identity Online (FIDO) authentication capabilities
  • Match-on-Chip Fingerprint Reader
  • dTPM 2.0 chip
  • ThinkShutter camera cover
  • Optional IR Camera
  • Kensington lock slot
In the box
  • Surface Pro 4
  • Surface Pen
  • Power supply
  • Quick Start Guide
  • Safety and warranty documents
-
Warranty
  • One-year limited hardware warranty
-
More
  • Mechanical features: Signature unibody magnesium design with hidden perimeter venting
  • Kickstand with a full-friction multiposition hinge to 150 degrees
  • Magnetic attach for keyboard fold stability
  • Physical buttons: volumes, power
-

Key Features

Surface Pro 4Lenovo ThinkPad X1 Carbon Gen 6
At Glance
Released in Mid
2015
3:2 2.7K
12.3”
1824p 60Hz
Weight
1.69 lb
0.77 kg
Up to
Intel Core i7-6650U
2C/4T, 2.20 → 3.40 GHz
Geekbench 5
764
Single Core
Geekbench 5
1,757
Multi-Core
With integrated
Intel® Iris® Graphics 540
48 Execution Units with 64 MB eDRAM side cache, 300 → 1050 MHz
Configurable up to
16GB
1866 MHz LPDDR3
Surface Pro 4 Ports
Released in
2018
16:9 WQHD
14”
1440p 60Hz
Weight
2.49 lb
1.13 kg
Up to
Intel Core i7-8650U
4C/8T, 1.90 → 4.20 GHz
Geekbench 5
1,106
Single Core
Geekbench 5
3,879
Multi-Core
With integrated
Intel® UHD Graphics 620
24 Execution Units, 300 → 1150 MHz
Configurable up to
16GB
2133 MHz LPDDR3

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