In depth comparison and review of Dell Inspiron 15 3511 and Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV). 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 ThinkPad X1 Extreme (2nd Gen) (20QV) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
powerful processor performance
excellent keyboard comfort
high-resolution display
advanced security features
heavier than competitors
short battery life
high price point
noisy under load
| DESIGN AND DIMENSIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.85 cm x 23.556 cm x 1.89 cm | 36.18 cm x 24.57 cm |
| Weight | 1.73 kg | 1.7 kg |
| Case Material | - | Aluminum, glass-fibre reinforced plastic, carbon fibre reinforced plastic |
| Colour | Carbon black | - |
| DISPLAY | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) |
|---|
| Screen Size (Type) | 15.6" | 15.6" |
|---|---|---|
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 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 | - |
| 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 | - |
| PROCESSOR | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) |
|---|
| CPU | Intel Core i3 (11th Gen) 1115G4 / 3 GHz | No CPU |
|---|---|---|
| Max Turbo Speed | 4.1 GHz | - |
| Number of Cores | Dual-Core | - |
| Cache | 6 MB | - |
| Chipset | - | Mobile Intel CM246 |
| Features | Intel Turbo Boost Technology 2.0, Intel Smart Cache | - |
| MEMORY | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) |
|---|
| RAM | 4 GB (1 x 4 GB) | 0 GB |
|---|---|---|
| Max RAM Supported | 16 GB | 64 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2666 MHz | 2666 MHz |
| Rated Speed | 2666 MHz | - |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | 1 | 2 |
| STORAGE | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD M.2 PCIe 3.0 x4 - NVM Express (NVMe) | - |
|---|
| AUDIO & VIDEO | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | - |
|---|---|---|
| Camera | Yes - HD | Yes |
| Resolution | 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, dual array microphone |
| Codec | - | Conexant CX11880 |
| Compliant Standards | High Definition Audio | High Definition Audio, Dolby Audio Premium, Dolby Atmos |
| COMMUNICATIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) |
|---|
| Wireless | Bluetooth, 802.11a/b/g/n/ac | Bluetooth 5.0, 802.11a/b/g/n/ac/ax |
|---|---|---|
| Wireless Controller | M.2 2230 | Intel Wi-Fi 6 AX 200 |
| BATTERY | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) |
|---|
| Technology | 3-cell lithium polymer | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 41 Wh | 80 Wh |
| Battery Life | - | Up to 14 hours |
| AC ADAPTER | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 19.5 V, 3.34 A | 135 Watt |
| INPUT | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) |
|---|
| Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | - | Yes |
| Features | - | Spill-resistant, multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) |
|---|
| Interfaces | HDMI USB 2.0 2 x USB 3.2 Gen 1 Headphone/microphone combo jack |
USB 3.1 Gen 1 (Always On) USB 3.1 Gen 1 2 x USB-C 3.1 Gen 2 (supports Thunderbolt 3, DisplayPort Alt Mode) (Power Delivery) HDMI Lenovo Ethernet extension connector Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | Yes (SD Card, SDHC Card, SDXC Card) | Yes (SD Card, SDHC Card, SDXC Card, SDXC UHS-II Card) |
| SOFTWARE | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition in S mode | No operating system |
|---|---|---|
| Software Included | Microsoft Office (30 days trial, excludes office licence) | - |
| MISCELLANEOUS | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|---|---|
| Security | - | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Security Slot Type | - | Kensington security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | - | Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810G tested |
| Compliant Standards | - | RoHS |
| SAR Value | - | 0.546 W/kg (body), 0.546 W/kg (limb) |
| 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) | - |
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