In depth comparison and review of Dell Inspiron 15 3511 and Lenovo ThinkBook 14-IIL (Lenovo ThinkBook 14). 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 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 ThinkBook 14-IIL (Lenovo ThinkBook 14) based on its technical characteristics, features, user experience, expert reviews and price level.
solid build quality
affordable price point
decent battery life
good processor performance
adequate storage options
average display quality
no thunderbolt support
limited graphics power
mediocre speaker output
DESIGN AND DIMENSIONS | Dell Inspiron 15 3511 | Lenovo ThinkBook 14-IIL (Lenovo ThinkBook 14) |
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Product Type | Notebook | Notebook |
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Dimensions (WxDxH) | 35.85 cm x 23.556 cm x 1.89 cm | 32.6 cm x 23 cm x 1.79 cm |
Weight | 1.73 kg | 1.5 kg |
Case Material | - | Aluminum |
Colour | Carbon black | Mineral grey |
DISPLAY | Dell Inspiron 15 3511 | Lenovo ThinkBook 14-IIL (Lenovo ThinkBook 14) |
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Screen Size (Type) | 15.6" | 14" - IPS |
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LCD Backlight Technology | LED backlight | LED backlight |
Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full 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 | 250 cd/m² |
Colour Gamut | 45% NTSC | - |
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 ThinkBook 14-IIL (Lenovo ThinkBook 14) |
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CPU | Intel Core i3 (11th Gen) 1115G4 / 3 GHz | Intel Core i5 (10th Gen) 1035G1 / 1 GHz |
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Max Turbo Speed | 4.1 GHz | 3.6 GHz |
Number of Cores | Dual-Core | Quad-Core |
Cache | 6 MB | 6 MB |
64-bit Computing | - | Yes |
Features | Intel Turbo Boost Technology 2.0, Intel Smart Cache | Integrated memory controller |
MEMORY | Dell Inspiron 15 3511 | Lenovo ThinkBook 14-IIL (Lenovo ThinkBook 14) |
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RAM | 4 GB (1 x 4 GB) | 8 GB (1 x 8 GB) |
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Max RAM Supported | 16 GB | 16 GB |
RAM Type | DDR4 SDRAM | DDR4 SDRAM |
Speed | 2666 MHz | 2666 MHz |
Rated Speed | 2666 MHz | 2666 MHz |
Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
Slots Qty | 2 | 1 |
Empty Slots | 1 | 0 |
STORAGE | Dell Inspiron 15 3511 | Lenovo ThinkBook 14-IIL (Lenovo ThinkBook 14) |
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Main Storage Size (HDD/SSD) | 128 GB SSD M.2 PCIe 3.0 x4 - NVM Express (NVMe) | 256 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) |
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AUDIO & VIDEO | Dell Inspiron 15 3511 | Lenovo ThinkBook 14-IIL (Lenovo ThinkBook 14) |
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Graphics Processor (GPU) | Intel UHD Graphics | Intel UHD Graphics |
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Camera | Yes - HD | Yes - 720p |
Resolution | 0.92 Megapixel | - |
Camera Features | 78.6 degrees, RGB camera | ThinkShutter camera privacy |
Image Sensor Type | CMOS | - |
Video Resolutions | 1280 x 720 | - |
Frame Rate | 30 frames per second | - |
Sound | Stereo speakers, microphone | Stereo speakers, dual array microphone |
Codec | - | Realtek ALC3287 |
Compliant Standards | High Definition Audio | High Definition Audio, Dolby Audio |
COMMUNICATIONS | Dell Inspiron 15 3511 | Lenovo ThinkBook 14-IIL (Lenovo ThinkBook 14) |
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Wireless | Bluetooth, 802.11a/b/g/n/ac | Bluetooth 5.0, 802.11a/b/g/n/ac/ax |
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Wireless Controller | M.2 2230 | M.2 Card |
Network Interface | - | Gigabit Ethernet |
Features | - | Dual stream (2x2) |
BATTERY | Dell Inspiron 15 3511 | Lenovo ThinkBook 14-IIL (Lenovo ThinkBook 14) |
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Technology | 3-cell lithium polymer | Lithium Ion |
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Battery Capacity (Size) | 41 Wh | 45 Wh |
Battery Life | - | Up to 9 hours |
AC ADAPTER | Dell Inspiron 15 3511 | Lenovo ThinkBook 14-IIL (Lenovo ThinkBook 14) |
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Input | AC 100-240 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 |
INPUT | Dell Inspiron 15 3511 | Lenovo ThinkBook 14-IIL (Lenovo ThinkBook 14) |
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Type | Keyboard, touchpad | Keyboard, touchpad |
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Numeric Keypad | Yes | - |
Keyboard Backlight | - | Yes |
Features | - | Spill-resistant, multi-touch touchpad, buttonless touchpad |
CONNECTIONS & EXPANSIONS | Dell Inspiron 15 3511 | Lenovo ThinkBook 14-IIL (Lenovo ThinkBook 14) |
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Interfaces | HDMI USB 2.0 2 x USB 3.2 Gen 1 Headphone/microphone combo jack |
USB 2.0 (hidden) USB 3.1 Gen 1 (Always On) USB 3.1 Gen 1 USB-C 3.1 Gen 1 USB-C 3.1 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery) HDMI Headphone/microphone combo jack |
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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 ThinkBook 14-IIL (Lenovo ThinkBook 14) |
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Operating System (OS) | Windows 10 Home 64-bit Edition in S mode | Windows 10 Home 64-bit Edition - English |
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Software Included | Microsoft Office (30 days trial, excludes office licence) | Microsoft Office (30 days trial) |
MISCELLANEOUS | Dell Inspiron 15 3511 | Lenovo ThinkBook 14-IIL (Lenovo ThinkBook 14) |
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Included Accessories | Power adapter | Power adapter |
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Security | - | Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
Features | - | Administrator password, hard drive password, power-on password, RapidCharge |
Compliant Standards | - | RoHS, Energy-Related Products (ErP) Lot 3 |
ENERGY STAR Certified | Yes | Yes |
EPEAT Compliant | - | EPEAT Silver |
Max Operating Temperature | 40 °C | - |
Min Operating Temperature | 0 °C | - |
Humidity Range Operating | 10 - 90% (non-condensing) | - |
Manufacturer Warranty | - | Limited warranty - 1 year - pick-up and return |
Model Number | - | IIL 20SL |