In depth comparison and review of Dell Latitude 3540 and Lenovo ThinkPad T14s Gen 4 (21F6). 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.
Advantages and disadvantages of Lenovo ThinkPad T14s Gen 4 (21F6) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard feel
impressive battery life
efficient thermal management
good security features
average display brightness
limited graphics performance
no HDMI port
higher price point
| DESIGN AND DIMENSIONS | Dell Latitude 3540 | Lenovo ThinkPad T14s Gen 4 (21F6) |
|---|
| Product Type | Notebook | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 37.6 cm x 25.9 cm x 2.53 cm | 31.75 cm x 22.69 cm x 1.69 cm |
| Weight | 2.2 kg | 1.25 kg |
| Case Material | - | Aluminium (bottom), carbon fibre hybrid (top) |
| Colour | Black | Deep black |
| DISPLAY | Dell Latitude 3540 | Lenovo ThinkPad T14s Gen 4 (21F6) |
|---|
| Screen Size (Type) | 15.6" | 14" - IPS |
|---|---|---|
| LCD Backlight Technology | WLED backlight | - |
| Screen Resolution | 1366 x 768 (HD) | 1920 x 1200 (WUXGA) |
| V-Sync Rate at Max Res. | - | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | - | 400 cd/m² |
| Colour Gamut | - | 100% sRGB |
| Features | Anti-glare | Anti-glare, Low Power, Eyesafe technology |
| PROCESSOR | Dell Latitude 3540 | Lenovo ThinkPad T14s Gen 4 (21F6) |
|---|
| CPU | Intel Core i3 (4th Gen) 4010U / 1.7 GHz | Intel Core i5 (13th Gen) 1335U / 1.3 GHz |
|---|---|---|
| Max Turbo Speed | - | 4.6 GHz |
| Number of Cores | Dual-Core | 10-core |
| Cache | 3 MB | 12 MB |
| 64-bit Computing | Yes | - |
| Chipset | Mobile Intel HM87 Express | - |
| Platform Technology | - | Intel Evo |
| Features | - | Integrated memory controller |
| MEMORY | Dell Latitude 3540 | Lenovo ThinkPad T14s Gen 4 (21F6) |
|---|
| RAM | 4 GB (1 x 4 GB) | 16 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 8 GB | - |
| RAM Type | DDR3L SDRAM | LPDDR5X SDRAM |
| Speed | 1600 MHz | 4800 MHz |
| Rated Speed | - | 6400 MHz |
| Form Factor | SO-DIMM 204-pin | - |
| Slots Qty | 2 | - |
| Empty Slots | 1 | - |
| STORAGE | Dell Latitude 3540 | Lenovo ThinkPad T14s Gen 4 (21F6) |
|---|
| Main Storage Size (HDD/SSD) | 500 GB HDD SATA 3Gb/s / 5400 rpm | 256 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe), Performance |
|---|---|---|
| Optical Drive | DVD±RW - tray | - |
| Read Speed | 8x | - |
| AUDIO & VIDEO | Dell Latitude 3540 | Lenovo ThinkPad T14s Gen 4 (21F6) |
|---|
| Graphics Processor (GPU) | Intel HD Graphics 4400 | Intel Iris Xe Graphics |
|---|---|---|
| Memory Allocation Technology | Dynamic Video Memory Technology | - |
| Max Monitors Supported | - | 3 external monitor(s) |
| Video System Features | - | Functions as Intel UHD graphics (for single-channel memory) |
| Camera | Yes | Yes |
| Resolution | 0.92 Megapixel | 5 Megapixel |
| Camera Features | - | Privacy shutter, Windows Hello, fixed focus, Discrete IR, Ultrasonic Human Presence Detection |
| Video Resolutions | 1280 x 720 | - |
| Sound | Stereo speakers, microphone | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3223 | Realtek ALC3287 |
| Compliant Standards | High Definition Audio | High Definition Audio, Dolby Audio |
| Audio Features | - | Input: Dolby Voice, 360° far-field |
| COMMUNICATIONS | Dell Latitude 3540 | Lenovo ThinkPad T14s Gen 4 (21F6) |
|---|
| Wireless | 802.11b/g/n, Bluetooth 4.0 | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | Dell Wireless 1705 | Intel Wi-Fi 6E AX 211 |
| Network Interface | Gigabit Ethernet | - |
| Features | - | Dual stream (2x2) |
| WWAN |
|---|
| Generation | - | 4G upgradable |
|---|
| BATTERY | Dell Latitude 3540 | Lenovo ThinkPad T14s Gen 4 (21F6) |
|---|
| Technology | 4-cell Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 40 Wh | 57 Wh |
| AC ADAPTER | Dell Latitude 3540 | Lenovo ThinkPad T14s Gen 4 (21F6) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 19.5 V, 3.34 A | 65 Watt |
| INPUT | Dell Latitude 3540 | Lenovo ThinkPad T14s Gen 4 (21F6) |
|---|
| Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Backlight | - | Yes |
| Features | - | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls |
| CONNECTIONS & EXPANSIONS | Dell Latitude 3540 | Lenovo ThinkPad T14s Gen 4 (21F6) |
|---|
| Interfaces | 2 x USB 3.0 2 x USB 2.0 VGA Headphone/microphone combo jack LAN |
USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) 2 x USB4 (supports Thunderbolt 4, DisplayPort 2.0 Alt Mode) (Power Delivery 3.0) HDMI (4K support) Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | 4 in 1 | - |
| SOFTWARE | Dell Latitude 3540 | Lenovo ThinkPad T14s Gen 4 (21F6) |
|---|
| Operating System (OS) | Microsoft Windows 7 Professional 64-bit Edition | Windows 11 Pro - English |
|---|---|---|
| Software Included | Drivers & Utilities, Microsoft Office (Trial), Dell Webcam Central | Glance by Mirametrix, Intel Connectivity Performance Suite |
| MISCELLANEOUS | Dell Latitude 3540 | Lenovo ThinkPad T14s Gen 4 (21F6) |
|---|
| Included Accessories | Power adapter | USB-C slim power adapter |
|---|---|---|
| Security | - | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader |
| Security Slot Type | - | Kensington nano security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | Security lock slot (cable lock sold separately) | Administrator password, system password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, Firmware Resiliency 3.0, certificate based BIOS authentication, FIDO (Fast Identity Online) authentication |
| Compliant Standards | CEC | RoHS, Energy-Related Products (ErP) Lot 6, TCG Certified, Energy-Related Products (ErP) Lot 26, TCO Certified 9.0 |
| ENERGY STAR Certified | Yes | - |
| Max Operating Temperature | 35 °C | 35 °C |
| Min Operating Temperature | 0 °C | 5 °C |
| Humidity Range Operating | 10 - 90% (non-condensing) | 8 - 95% |
| Manufacturer Warranty | Limited warranty - 1 year - response time: next business day | Base warranty - 3 years - pick-up and return Base warranty - battery - 1 year Extended warranty - 1 year - on-site - response time: next business day |
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