In depth comparison and review of Microsoft Surface Book 3 and Lenovo ThinkPad T440. Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.
| DESIGN AND DIMENSIONS | Microsoft Surface Book 3 | Lenovo ThinkPad T440 |
|---|
| Product Type | Tablet - with keyboard dock | Ultrabook |
|---|---|---|
| Dimensions (WxDxH) | 31.2 cm x 23.2 cm x 2.3 cm | 33.9 cm x 23.25 cm x 2.1 cm |
| Weight | 1.534 kg | 1.81 kg |
| Case Material | Magnesium alloy | - |
| Colour | Platinum | - |
| DISPLAY | Microsoft Surface Book 3 | Lenovo ThinkPad T440 |
|---|
| Screen Size (Type) | 13.5" | 14" |
|---|---|---|
| Touchscreen | Yes (10-point multi-touch) | - |
| LCD Backlight Technology | - | LED backlight |
| Screen Resolution | 3000 x 2000 | 1600 x 900 (HD+) |
| Pixel Density (ppi) | 267 | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 3:2 | 16:9 |
| Features | PixelSense | - |
| PROCESSOR | Microsoft Surface Book 3 | Lenovo ThinkPad T440 |
|---|
| CPU | Intel Core i5 (10th Gen) 1035G7 / 1.2 GHz | Intel Core i5 (4th Gen) 4300U / 1.9 GHz |
|---|---|---|
| Max Turbo Speed | 3.7 GHz | 2.9 GHz |
| Number of Cores | Quad-Core | Dual-Core |
| Cache | 6 MB | 3 MB |
| 64-bit Computing | Yes | Yes |
| Features | - | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0 |
| MEMORY | Microsoft Surface Book 3 | Lenovo ThinkPad T440 |
|---|
| RAM | 8 GB | 4 GB (1 x 4 GB) |
|---|---|---|
| Max RAM Supported | - | 8 GB |
| RAM Type | LPDDR4X SDRAM | DDR3L SDRAM |
| Speed | 3733 MHz | - |
| Form Factor | - | SO-DIMM 204-pin |
| Slots Qty | - | 1 |
| Empty Slots | - | 0 |
| STORAGE | Microsoft Surface Book 3 | Lenovo ThinkPad T440 |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD PCIe - NVM Express (NVMe) | 240 GB SSD |
|---|
| AUDIO & VIDEO | Microsoft Surface Book 3 | Lenovo ThinkPad T440 |
|---|
| Graphics Processor (GPU) | Intel Iris Plus Graphics | Intel HD Graphics 4400 |
|---|---|---|
| Camera | Yes - 1080p | Yes |
| Resolution | 8 Megapixel (rear), 5 Megapixel (front) | - |
| Camera Features | Autofocus, Windows Hello | - |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3232 |
| Compliant Standards | Dolby Atmos | - |
| COMMUNICATIONS | Microsoft Surface Book 3 | Lenovo ThinkPad T440 |
|---|
| Wireless | Bluetooth 5.0, 802.11a/b/g/n/ac/ax | - |
|---|---|---|
| Network Interface | - | Gigabit Ethernet |
| BATTERY | Microsoft Surface Book 3 | Lenovo ThinkPad T440 |
|---|
| Battery Life | Up to 15.5 hours | - |
|---|
| AC ADAPTER | Microsoft Surface Book 3 | Lenovo ThinkPad T440 |
|---|
| Output | 65 Watt | - |
|---|
| INPUT | Microsoft Surface Book 3 | Lenovo ThinkPad T440 |
|---|
| Type | Keyboard, trackpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Backlight | Yes | - |
| Features | - | Multi-touch touchpad |
| CONNECTIONS & EXPANSIONS | Microsoft Surface Book 3 | Lenovo ThinkPad T440 |
|---|
| Interfaces | 2 x USB 3.1 Gen 2 (on keyboard dock) USB-C 3.1 Gen 2 (on keyboard dock) (Power Delivery 3.0) Headphone output SurfaceConnect SurfaceConnect (on keyboard dock) |
2 x USB 3.0 VGA Mini DisplayPort LAN Dock Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | Yes (SDXC Card) | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
| SOFTWARE | Microsoft Surface Book 3 | Lenovo ThinkPad T440 |
|---|
| Operating System (OS) | Windows 10 Pro | Windows 10 Pro (Microsoft Authorized Refurbisher (MAR)) |
|---|---|---|
| Software Included | Microsoft 365 (30 days trial) | - |
| MISCELLANEOUS | Microsoft Surface Book 3 | Lenovo ThinkPad T440 |
|---|
| Dockable | Yes | Yes |
|---|---|---|
| Included Accessories | Power adapter | Power adapter |
| Integrated Options | Accelerometer, ambient light sensor, proximity sensor, magnetometer, gyro sensor | - |
| Security | Trusted Platform Module (TPM 2.0) Security Chip | Trusted Platform Module (TPM 1.2) Security Chip |
| Security Slot Type | - | Kensington security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | Volume control, Studio Mode, Tablet Mode, Laptop Mode | - |
| Compliant Standards | - | ISO 9001, ISO 14001, ISO 27001 |
| SAR Value | 1.45 W/kg (body) | - |
| Manufacturer Warranty | Limited warranty - 1 year | Limited warranty - 2 years - pick-up and return |
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