| Attribute |
Lenovo ThinkPad T440s (20ARS1450L-B) × | 
Sony VAIO SVF15N1D4E (SVF15N1D4EB) × |
| General | | |
| Model | Lenovo ThinkPad T440s | Sony VAIO SVF15N1D4E |
| Product code | 20ARS1450L-B | SVF15N1D4EB |
| Design | | |
| Product colour | Black | Black |
| Form factor | Clamshell | Convertible (Track Slider) |
| Brand | Lenovo | Sony |
| Family | ThinkPad | VAIO |
| Series | T | Fit multi-flip |
| Model name | T440s | SVF15N1D4E |
| Part number | 20ARS1450L-B | SVF15N1D4EB |
| Market positioning | Business | - |
| Release year (year) | 2016 | 2014 |
| Processor | | |
| Processor family | 4th gen Intel Core i5 | 4th gen Intel Core i5 |
| Processor frequency (GHz) | 1.9 | 1.6 |
| Processor boost frequency (GHz) | 2.9 | 2.6 |
| Processor model | i5-4300U | i5-4200U |
| Processor cores | 2 | 2 |
| Processor threads | 4 | 4 |
| Processor lithography (Nm) | 22 | 22 |
| Processor socket | BGA 1168 | BGA 1168 |
| Processor cache (MB) | 3 | 3 |
| Memory | | |
| Internal memory type | DDR3L-SDRAM | DDR3L-SDRAM |
| Maximum internal memory (GB) | 12 | 8 |
| Memory clock speed (MHz) | 1,600 | 1,600 |
| Internal memory (GB) | 8 | 8 |
| Display | | |
| Display diagonal (inch) | 14 | 15.5 |
| HD type | HD+ | Full HD |
| LED backlight | + | + |
| Touchscreen | - | + |
| Display resolution | 1600 x 900 pixels | 1920 x 1080 pixels |
| Graphics | | |
| On-board graphics adapter | + | + |
| Discrete graphics adapter model | - | NVIDIA GeForce GT 735M |
| Discrete graphics adapter | - | + |
| Discrete graphics adapter memory (GB) | - | 2 |
| On-board graphics adapter base frequency (MHz) | 200 | 200 |
| Maximum on-board graphics adapter memory (GB) | 74 | 74 |
| On-board graphics adapter model | Intel HD Graphics 4400 | Intel HD Graphics 4400 |
| Storage | | |
| Total storage capacity (GB) | 256 | 256 |
| Number of SSDs installed | 1 | 1 |
| SSD capacity (GB) | 256 | 256 |
| Card reader integrated | + | + |
| Storage media | SSD | SSD |
| Optical drive | - | - |
| Networking | | |
| Wi-Fi standards | - | - ieee 802.11b
- ieee 802.11g
- ieee 802.11n
|
| Bluetooth | + | + |
| Ethernet LAN | + | + |
| Ethernet LAN data rates (Mbit/s) | | - |
| Wi-Fi | + | + |
| 4g | - | - |
| 3g | - | - |
| Bluetooth version | 4.0 | 4.0+HS |
| Ports and interfaces | | |
| USB 3.x Type-A ports | 3 | 2 |
| Combo headphone/mic port | + | + |
| Docking connector | + | - |
| USB Sleep-and-Charge | + | - |
| DVI port | - | - |
| HDMI ports quantity | - | 1 |
| Ethernet LAN (RJ-45) ports | 1 | 1 |
| Audio | | |
| Speaker power (W) | 1 | - |
| Audio chip | Realtek ALC3232 | - |
| Built-in microphone | + | + |
| Camera | | |
| Front camera | + | + |
| Front camera resolution (numeric) (MPixel) | - | 0.9 |
| Front camera HD type | HD | - |
| Front camera resolution (pixels) | 1280 x 720 | 1280 x 720 |
| Keyboard | | |
| Numeric keypad | - | - |
| Keyboard backlit | - | + |
| Pointing device | ThinkPad UltraNav | Touchpad |
| Software | | |
| Operating system installed | Windows 8 Pro | Windows 8 Pro |
| Operating system architecture (bit) | 64 | 64 |
| Battery | | |
| Battery life (max) (h) | - | 6 |
| Weight and dimensions | | |
| Weight (kg) | - | 2.29 |
| Height (mm) | 20.6 | 19.9 |
| Depth (mm) | 226 | 253.8 |
| Width (mm) | 331 | 377.1 |
| Security | | |
| Cable lock slot | + | - |
| Trusted platform module (TPM) | + | - |