In depth comparison and review of Dell Latitude 3540 and Lenovo ThinkPad L15 Gen 4 (21H7). 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 L15 Gen 4 (21H7) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard comfort
good battery life
solid performance
adequate connectivity options
mediocre display quality
heavier than competitors
limited graphics performance
higher price point
| DESIGN AND DIMENSIONS | Dell Latitude 3540 | Lenovo ThinkPad L15 Gen 4 (21H7) |
|---|
| 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 (21H7) |
|---|
| Screen Size (Type) | 15.6" | 15.6" - IPS |
|---|---|---|
| LCD Backlight Technology | WLED backlight | - |
| Screen Resolution | 1366 x 768 (HD) | 1920 x 1080 (Full HD) |
| 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 (21H7) |
|---|
| CPU | Intel Core i3 (4th Gen) 4010U / 1.7 GHz | AMD Ryzen 5 Pro 7530U / 2 GHz |
|---|---|---|
| Max Turbo Speed | - | 4.5 GHz |
| Number of Cores | Dual-Core | 6-core |
| Cache | 3 MB | L3 - 16 MB |
| 64-bit Computing | Yes | - |
| Chipset | Mobile Intel HM87 Express | - |
| Features | - | Integrated memory controller |
| MEMORY | Dell Latitude 3540 | Lenovo ThinkPad L15 Gen 4 (21H7) |
|---|
| RAM | 4 GB (1 x 4 GB) | 8 GB (1 x 8 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 (21H7) |
|---|
| 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 (21H7) |
|---|
| Graphics Processor (GPU) | Intel HD Graphics 4400 | AMD Radeon Graphics |
|---|---|---|
| Memory Allocation Technology | Dynamic Video Memory Technology | - |
| Max Monitors Supported | - | 3 external monitor(s) |
| 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 (21H7) |
|---|
| 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 | AMD RZ616 - M.2 Card |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | - | Realtek RTL8111EPV |
| Compliant Standards | - | DASH |
| Features | - | Wake-on-LAN (WOL), dual stream (2x2) |
| WWAN |
|---|
| Generation | - | 4G upgradable |
|---|
| BATTERY | Dell Latitude 3540 | Lenovo ThinkPad L15 Gen 4 (21H7) |
|---|
| Technology | 4-cell Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 40 Wh | 57 Wh |
| AC ADAPTER | Dell Latitude 3540 | Lenovo ThinkPad L15 Gen 4 (21H7) |
|---|
| 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 (21H7) |
|---|
| 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 (21H7) |
|---|
| 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 USB-C 3.2 Gen 2 (supports 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 (21H7) |
|---|
| 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 (21H7) |
|---|
| 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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