Detailed comparison and review of Dell Inspiron 15 3511 and Lenovo ThinkPad L520. With our comprehensive overview, you can simply compare dimensions, performance, storage, functions, but also other key features of both laptops and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the laptop that best fits your needs and expectations.
Advantages and disadvantages of Dell Inspiron 15 3511 based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
lightweight design
decent battery life
solid build quality
intuitive touchpad
average display quality
modest processor speed
limited graphics performance
fewer USB-C ports
Advantages and disadvantages of Lenovo ThinkPad L520 based on its technical characteristics, features, user experience, expert reviews and price level.
durable build quality
excellent keyboard comfort
good battery life
solid performance
reliable security features
heavier than competitors
dated design
average display quality
limited graphics performance
| DESIGN AND DIMENSIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad L520 |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.85 cm x 23.556 cm x 1.89 cm | 38 cm x 24.7 cm x 3.6 cm |
| Weight | 1.73 kg | 2.6 kg |
| Colour | Carbon black | - |
| DISPLAY | Dell Inspiron 15 3511 | Lenovo ThinkPad L520 |
|---|
| Screen Size (Type) | 15.6" | 15.6" |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1600 x 900 (HD+) |
| Pixel Density (ppi) | 141 | - |
| V-Sync Rate at Max Res. | 60 Hz | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 220 cd/m² | - |
| Colour Gamut | 45% NTSC | - |
| Colour Support | - | 16.7 million colours |
| Features | Anti-glare, Wide Viewing Angle, ±80° horizontal viewing angle, ±80° vertical viewing angle, Narrow Border Display, 35 ms response rate, 0.179 mm pixel pitch | Anti-glare |
| PROCESSOR | Dell Inspiron 15 3511 | Lenovo ThinkPad L520 |
|---|
| CPU | Intel Core i3 (11th Gen) 1115G4 / 3 GHz | Intel Core i5 (2nd Gen) 2520M / 2.5 GHz |
|---|---|---|
| Max Turbo Speed | 4.1 GHz | 3.2 GHz |
| Number of Cores | Dual-Core | Dual-Core |
| Cache | 6 MB | L3 - 3 MB |
| 64-bit Computing | - | Yes |
| Features | Intel Turbo Boost Technology 2.0, Intel Smart Cache | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0 |
| MEMORY | Dell Inspiron 15 3511 | Lenovo ThinkPad L520 |
|---|
| RAM | 4 GB (1 x 4 GB) | 4 GB |
|---|---|---|
| Max RAM Supported | 16 GB | 8 GB |
| RAM Type | DDR4 SDRAM | DDR3 SDRAM |
| Speed | 2666 MHz | - |
| Rated Speed | 2666 MHz | - |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 204-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | 1 | - |
| STORAGE | Dell Inspiron 15 3511 | Lenovo ThinkPad L520 |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD M.2 PCIe 3.0 x4 - NVM Express (NVMe) | 320 GB HDD |
|---|---|---|
| Optical Drive | - | DVD-Writer |
| AUDIO & VIDEO | Dell Inspiron 15 3511 | Lenovo ThinkPad L520 |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | Intel HD Graphics 3000 |
|---|---|---|
| Memory Allocation Technology | - | Dynamic Video Memory Technology |
| Camera | Yes - HD | Yes |
| Resolution | 0.92 Megapixel | 0.92 Megapixel |
| Camera Features | 78.6 degrees, RGB camera | - |
| Image Sensor Type | CMOS | - |
| Video Resolutions | 1280 x 720 | - |
| Frame Rate | 30 frames per second | - |
| Sound | Stereo speakers, microphone | Stereo speakers, microphone |
| Codec | - | Realtek ALC269Q |
| Compliant Standards | High Definition Audio | High Definition Audio |
| COMMUNICATIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad L520 |
|---|
| Wireless | Bluetooth, 802.11a/b/g/n/ac | 802.11a/b/g/n, Bluetooth 3.0 |
|---|---|---|
| Wireless Controller | M.2 2230 | - |
| Network Interface | - | Gigabit Ethernet |
| WWAN |
|---|
| Generation | - | 3G upgradable |
|---|
| BATTERY | Dell Inspiron 15 3511 | Lenovo ThinkPad L520 |
|---|
| Technology | 3-cell lithium polymer | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 41 Wh | - |
| AC ADAPTER | Dell Inspiron 15 3511 | Lenovo ThinkPad L520 |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 19.5 V, 3.34 A | - |
| INPUT | Dell Inspiron 15 3511 | Lenovo ThinkPad L520 |
|---|
| Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Numeric Keypad | Yes | - |
| Features | - | Spill-resistant, multi-touch touchpad |
| CONNECTIONS & EXPANSIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad L520 |
|---|
| Slots | - | 1 x ExpressCard/54 (1 free) |
|---|---|---|
| Interfaces | HDMI USB 2.0 2 x USB 3.2 Gen 1 Headphone/microphone combo jack |
2 x USB 2.0 PoweredUSB 2.0 USB 2.0/eSATA VGA DisplayPort LAN Headphone/microphone combo jack |
| Memory Card Reader | Yes (SD Card, SDHC Card, SDXC Card) | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
| SOFTWARE | Dell Inspiron 15 3511 | Lenovo ThinkPad L520 |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition in S mode | Windows 10 Home 64-bit Edition (Microsoft Authorized Refurbisher (MAR)) |
|---|---|---|
| Software Included | Microsoft Office (30 days trial, excludes office licence) | - |
| MISCELLANEOUS | Dell Inspiron 15 3511 | Lenovo ThinkPad L520 |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|---|---|
| Security | - | Trusted Platform Module (TPM 1.2) Security Chip |
| Security Slot Type | - | Kensington security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Compliant Standards | - | ISO 9001, ISO 14001, RoHS, ISO 27001 |
| ENERGY STAR Certified | Yes | Yes |
| EPEAT Compliant | - | EPEAT Gold |
| Max Operating Temperature | 40 °C | - |
| Min Operating Temperature | 0 °C | - |
| Humidity Range Operating | 10 - 90% (non-condensing) | - |
| Manufacturer Warranty | - | Limited warranty - 2 years - pick-up and return |
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