In depth comparison and review of Dell Latitude E6440 and Lenovo ThinkPad X1 Extreme (20MF). 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 | Dell Latitude E6440 | Lenovo ThinkPad X1 Extreme (20MF) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 33.8 cm x 23.26 cm x 3.18 cm | 36.18 cm x 24.57 cm |
| Weight | 2.12 kg | - |
| Case Material | Anodised aluminium | Aluminum, glass-fibre reinforced plastic, carbon fibre reinforced plastic |
| Colour | Black, silver | Black | Black |
| DISPLAY | Dell Latitude E6440 | Lenovo ThinkPad X1 Extreme (20MF) |
|---|
| Screen Size (Type) | 14" | 15.6" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1366 x 768 (HD) | - |
| Widescreen | Yes | - |
| Image Aspect Ratio | 16:9 | 16:9 |
| Features | Anti-glare, BFR/PVC-free | Anti-glare |
| PROCESSOR | Dell Latitude E6440 | Lenovo ThinkPad X1 Extreme (20MF) |
|---|
| CPU | Intel Core i5 (4th Gen) 4300M / 2.6 GHz | No CPU |
|---|---|---|
| Max Turbo Speed | 3.3 GHz | - |
| Number of Cores | Dual-Core | - |
| Cache | 3 MB | - |
| 64-bit Computing | Yes | - |
| Chipset | Intel QM87 | Mobile Intel CM246 |
| Platform Technology | Intel vPro Platform | - |
| Features | Hyper-Threading Technology, Intel Turbo Boost Technology 2.0, Intel vPro Technology | - |
| MEMORY | Dell Latitude E6440 | Lenovo ThinkPad X1 Extreme (20MF) |
|---|
| RAM | 4 GB (1 x 4 GB) | - |
|---|---|---|
| Max RAM Supported | 16 GB | - |
| RAM Type | DDR3L SDRAM | DDR4 SDRAM |
| Speed | 1600 MHz / PC3-12800 | - |
| Rated Speed | 1600 MHz | - |
| Form Factor | SO-DIMM 204-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | 1 | 2 |
| STORAGE | Dell Latitude E6440 | Lenovo ThinkPad X1 Extreme (20MF) |
|---|
| Main Storage Size (HDD/SSD) | 320 GB HDD SATA 3Gb/s / 7200 rpm | - |
|---|---|---|
| Optical Drive | DVD±RW | - |
| Read Speed | 8x | - |
| AUDIO & VIDEO | Dell Latitude E6440 | Lenovo ThinkPad X1 Extreme (20MF) |
|---|
| Graphics Processor (GPU) | Intel HD Graphics 4600 | - |
|---|---|---|
| Camera | Yes | - |
| Camera Features | 720p HD movie recording | - |
| Video Resolutions | 1280 x 720 | - |
| Sound | Stereo speakers, microphone | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3226 | Realtek ALC3286 |
| Compliant Standards | High Definition Audio | High Definition Audio, Dolby Audio Premium, Dolby Atmos |
| Audio Features | MaxxAudio | - |
| COMMUNICATIONS | Dell Latitude E6440 | Lenovo ThinkPad X1 Extreme (20MF) |
|---|
| Wireless | Bluetooth, 802.11b/g/n | - |
|---|---|---|
| Wireless Controller | Intel Centrino Advanced-N 6235 | - |
| Network Interface | Gigabit Ethernet | - |
| Features | Intel Wireless Display (WiDi) | - |
| BATTERY | Dell Latitude E6440 | Lenovo ThinkPad X1 Extreme (20MF) |
|---|
| Technology | 6-cell Lithium Ion | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 60 Wh | 80 Wh |
| Battery Life | - | Up to 14.9 hours |
| AC ADAPTER | Dell Latitude E6440 | Lenovo ThinkPad X1 Extreme (20MF) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 19.5 V, 3.34 A | - |
| INPUT | Dell Latitude E6440 | Lenovo ThinkPad X1 Extreme (20MF) |
|---|
| Type | Keyboard, touchpad, DualPoint | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | Multi-touch touchpad | Spill-resistant, multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Dell Latitude E6440 | Lenovo ThinkPad X1 Extreme (20MF) |
|---|
| Interfaces | LAN 4 x USB 3.0 Headphone/microphone combo jack VGA HDMI Dock |
USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) 2 x USB-C (supports Thunderbolt 3) HDMI Headphone/microphone combo jack Lenovo Ethernet extension connector |
|---|---|---|
| Memory Card Reader | Yes (SD Card) | Yes (SD Card, SDHC Card, SDXC Card, SDXC UHS-II Card) |
| SOFTWARE | Dell Latitude E6440 | Lenovo ThinkPad X1 Extreme (20MF) |
|---|
| Operating System (OS) | Microsoft Windows 7 Professional 64-bit Edition - English | No operating system |
|---|---|---|
| Software Included | Dell Webcam Central | - |
| MISCELLANEOUS | Dell Latitude E6440 | Lenovo ThinkPad X1 Extreme (20MF) |
|---|
| Dockable | Yes | - |
|---|---|---|
| Included Accessories | Power adapter | Power adapter |
| Integrated Options | Ambient light sensor | - |
| Security | Trusted Platform Module (TPM) Security Chip | Trusted Platform Module (TPM 2.0) Security Chip |
| Security Slot Type | Kensington security slot | Kensington security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | Noise reduction, powder coated, hot-swappable battery, Free Fall Sensor, ExpressCharge, Tri-metal chassis | Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810G tested |
| Compliant Standards | FIPS 140-2, MIL-STD 810G | RoHS |
| SAR Value | - | 0.193 W/kg (body), 0.193 W/kg (limb) |
| ENERGY STAR Certified | Yes | Yes |
| Max Operating Temperature | 35 °C | - |
| Min Operating Temperature | 0 °C | - |
| Humidity Range Operating | 10 - 90% (non-condensing) | - |
| Manufacturer Warranty | Limited warranty - 3 years - response time: next business day Limited warranty - battery - 1 year |
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