Side by side comparison and review of Dell Latitude 3540 and Lenovo ThinkPad L15 Gen 4 (21H3). Compare dimensions, processors, batteries, storage capacities and other key specifications and features to simplify the choice of your perfect laptop. Our goal is to make it easier for you to decide on the laptop that will best meet your expectations by revealing the main differences between the products.
Advantages and disadvantages of Lenovo ThinkPad L15 Gen 4 (21H3) based on its technical characteristics, features, user experience, expert reviews and price level.
robust connectivity options
supports fast charging
dedicated nvidia gpu
upgradeable ram and storage
solid build quality
average battery capacity
basic 250-nit display
limited cpu performance
no fingerprint reader
| DESIGN AND DIMENSIONS | Dell Latitude 3540 | Lenovo ThinkPad L15 Gen 4 (21H3) |
|---|
| Product Type | Notebook | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 37.6 cm x 25.9 cm x 2.53 cm | 36.02 cm x 23.7 cm x 1.993 cm |
| Weight | 2.2 kg | 1.77 kg |
| Case Material | - | Polycarbonate ABS (bottom), polycarbonate ABS (top) |
| Colour | Black | Thunder black |
| DISPLAY | Dell Latitude 3540 | Lenovo ThinkPad L15 Gen 4 (21H3) |
|---|
| Screen Size (Type) | 15.6" | 15.6" - IPS |
|---|---|---|
| LCD Backlight Technology | WLED backlight | - |
| Screen Resolution | 1366 x 768 (HD) | 1920 x 1080 (Full HD) |
| V-Sync Rate at Max Res. | - | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | - | 250 cd/m² |
| Colour Gamut | - | 45% NTSC |
| Features | Anti-glare | Anti-glare |
| PROCESSOR | Dell Latitude 3540 | Lenovo ThinkPad L15 Gen 4 (21H3) |
|---|
| 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 | - |
| Features | - | Integrated memory controller |
| MEMORY | Dell Latitude 3540 | Lenovo ThinkPad L15 Gen 4 (21H3) |
|---|
| RAM | 4 GB (1 x 4 GB) | 16 GB (1 x 16 GB) |
|---|---|---|
| Max RAM Supported | 8 GB | 64 GB |
| RAM Type | DDR3L SDRAM | DDR4 SDRAM |
| Speed | 1600 MHz | 3200 MHz |
| Rated Speed | - | 3200 MHz |
| Form Factor | SO-DIMM 204-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | 1 | 1 |
| STORAGE | Dell Latitude 3540 | Lenovo ThinkPad L15 Gen 4 (21H3) |
|---|
| Main Storage Size (HDD/SSD) | 500 GB HDD SATA 3Gb/s / 5400 rpm | 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) |
|---|---|---|
| Optical Drive | DVD±RW - tray | - |
| Read Speed | 8x | - |
| AUDIO & VIDEO | Dell Latitude 3540 | Lenovo ThinkPad L15 Gen 4 (21H3) |
|---|
| 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 - 1080p |
| Resolution | 0.92 Megapixel | - |
| Camera Features | - | Privacy shutter, Windows Hello, fixed focus, hybrid FHD/IR camera |
| 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, far-field |
| COMMUNICATIONS | Dell Latitude 3540 | Lenovo ThinkPad L15 Gen 4 (21H3) |
|---|
| Wireless | 802.11b/g/n, Bluetooth 4.0 | 802.11a/b/g/n/ac/ax, Bluetooth 5.1 |
|---|---|---|
| Wireless Controller | Dell Wireless 1705 | Intel Wi-Fi 6 AX 201 - M.2 Card |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | - | Intel I219-V |
| Features | - | Wake-on-LAN (WOL), dual stream (2x2) |
| WWAN |
|---|
| Generation | - | 4G upgradable |
|---|
| BATTERY | Dell Latitude 3540 | Lenovo ThinkPad L15 Gen 4 (21H3) |
|---|
| Technology | 4-cell Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 40 Wh | 57 Wh |
| AC ADAPTER | Dell Latitude 3540 | Lenovo ThinkPad L15 Gen 4 (21H3) |
|---|
| 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 L15 Gen 4 (21H3) |
|---|
| Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | - | Yes |
| Features | - | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls |
| CONNECTIONS & EXPANSIONS | Dell Latitude 3540 | Lenovo ThinkPad L15 Gen 4 (21H3) |
|---|
| 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) USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) HDMI (4K support) LAN Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | 4 in 1 | Yes (microSD) |
| SOFTWARE | Dell Latitude 3540 | Lenovo ThinkPad L15 Gen 4 (21H3) |
|---|
| Operating System (OS) | Microsoft Windows 7 Professional 64-bit Edition | Windows 11 Pro - English |
|---|---|---|
| Software Included | Drivers & Utilities, Microsoft Office (Trial), Dell Webcam Central | - |
| MISCELLANEOUS | Dell Latitude 3540 | Lenovo ThinkPad L15 Gen 4 (21H3) |
|---|
| Included Accessories | Power adapter | USB-C 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, power-on password, RapidCharge, MIL-STD-810H tested, self-healing BIOS, NVMe password |
| 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 - 1 year - pick-up and return Extended warranty - 1 year - on-site - response time: next business day |
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