In depth comparison and review of Dell Latitude E6440 and Lenovo ThinkPad X280 (20KF). 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 X280 (20KF) |
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Product Type | Notebook | Notebook |
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Dimensions (WxDxH) | 33.8 cm x 23.26 cm x 3.18 cm | 30.77 cm x 20.98 cm x 1.78 cm |
Weight | 2.12 kg | 1.26 kg |
Case Material | Anodised aluminium | Glass-fibre, magnesium-aluminum alloy |
Colour | Black, silver | Black | Black |
DISPLAY | Dell Latitude E6440 | Lenovo ThinkPad X280 (20KF) |
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Screen Size (Type) | 14" | 12.5" |
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LCD Backlight Technology | LED backlight | LED backlight |
Screen Resolution | 1366 x 768 (HD) | 1366 x 768 (HD) |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:9 | 16:9 |
Image Brightness | - | 220 cd/m² |
Features | Anti-glare, BFR/PVC-free | Anti-glare |
PROCESSOR | Dell Latitude E6440 | Lenovo ThinkPad X280 (20KF) |
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CPU | Intel Core i5 (4th Gen) 4300M / 2.6 GHz | Intel Core i5 (8th Gen) 8250U / 1.6 GHz |
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Max Turbo Speed | 3.3 GHz | 3.4 GHz |
Number of Cores | Dual-Core | Quad-Core |
Cache | 3 MB | 6 MB |
64-bit Computing | Yes | Yes |
Chipset | Intel QM87 | - |
Platform Technology | Intel vPro Platform | - |
Features | Hyper-Threading Technology, Intel Turbo Boost Technology 2.0, Intel vPro Technology | Integrated memory controller |
MEMORY | Dell Latitude E6440 | Lenovo ThinkPad X280 (20KF) |
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RAM | 4 GB (1 x 4 GB) | 8 GB (provided memory is soldered) |
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Max RAM Supported | 16 GB | - |
RAM Type | DDR3L SDRAM | DDR4 SDRAM |
Speed | 1600 MHz / PC3-12800 | 2400 MHz |
Rated Speed | 1600 MHz | 2400 MHz |
Form Factor | SO-DIMM 204-pin | - |
Slots Qty | 2 | - |
Empty Slots | 1 | - |
STORAGE | Dell Latitude E6440 | Lenovo ThinkPad X280 (20KF) |
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Main Storage Size (HDD/SSD) | 320 GB HDD SATA 3Gb/s / 7200 rpm | 256 GB SSD M.2 PCIe - TCG Opal Encryption, NVM Express (NVMe) - Samsung |
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Optical Drive | DVD±RW | - |
Read Speed | 8x | - |
AUDIO & VIDEO | Dell Latitude E6440 | Lenovo ThinkPad X280 (20KF) |
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Graphics Processor (GPU) | Intel HD Graphics 4600 | Intel UHD Graphics 620 |
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Camera | Yes | Yes - 720p |
Camera Features | 720p HD movie recording | ThinkShutter camera privacy |
Video Resolutions | 1280 x 720 | - |
Sound | Stereo speakers, microphone | Stereo speakers, dual array microphone |
Codec | Realtek ALC3226 | Realtek ALC3287 |
Compliant Standards | High Definition Audio | High Definition Audio, Dolby Audio Premium |
Audio Features | MaxxAudio | - |
COMMUNICATIONS | Dell Latitude E6440 | Lenovo ThinkPad X280 (20KF) |
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Wireless | Bluetooth, 802.11b/g/n | 802.11a/b/g/n/ac, Bluetooth 4.1 |
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Wireless Controller | Intel Centrino Advanced-N 6235 | Intel Dual Band Wireless-AC 8265 - M.2 Card |
Network Interface | Gigabit Ethernet | - |
Features | Intel Wireless Display (WiDi) | Gigabit Ethernet via optional Ethernet (RJ-45) adapter |
WWAN |
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Generation | - | 4G |
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Technology | - | LTE |
Controller | - | FIBOCOM L830-EB - M.2 Card |
BATTERY | Dell Latitude E6440 | Lenovo ThinkPad X280 (20KF) |
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Technology | 6-cell Lithium Ion | 6-cell Lithium Ion |
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Battery Capacity (Size) | 60 Wh | 48 Wh |
Battery Life | - | Up to 16.6 hours |
AC ADAPTER | Dell Latitude E6440 | Lenovo ThinkPad X280 (20KF) |
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Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
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Output | 65 Watt, 19.5 V, 3.34 A | 65 Watt, 20 V, 3.25 A |
INPUT | Dell Latitude E6440 | Lenovo ThinkPad X280 (20KF) |
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Type | Keyboard, touchpad, DualPoint | Keyboard, TrackPoint, UltraNav |
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Keyboard Backlight | Yes | - |
Features | Multi-touch touchpad | Spill-resistant, multi-touch touchpad, buttonless touchpad |
CONNECTIONS & EXPANSIONS | Dell Latitude E6440 | Lenovo ThinkPad X280 (20KF) |
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Slots | - | Nano-SIM card |
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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) USB-C 3.1 Gen 1 USB-C 3.1 Gen 2 (supports Thunderbolt 3) HDMI Lenovo Ethernet extension connector Dock Headphone/microphone combo jack |
Memory Card Reader | Yes (SD Card) | Yes (microSD) |
SOFTWARE | Dell Latitude E6440 | Lenovo ThinkPad X280 (20KF) |
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Operating System (OS) | Microsoft Windows 7 Professional 64-bit Edition - English | Windows 10 Pro 64-bit Edition |
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Software Included | Dell Webcam Central | - |
MISCELLANEOUS | Dell Latitude E6440 | Lenovo ThinkPad X280 (20KF) |
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Dockable | Yes | Yes |
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Included Accessories | Power adapter | USB-C power adapter |
Integrated Options | Ambient light sensor | - |
Security | Trusted Platform Module (TPM) Security Chip | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
Security Slot Type | Kensington security slot | Kensington mini 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 |
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 |
Limited warranty - 3 years - pick-up and return |