Side by side comparison and review of Dell Inspiron 15 3511 and Lenovo ThinkPad X1 Extreme (2nd Gen) (20QW). 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 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) (20QW) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
powerful processor performance
excellent keyboard feel
high-resolution display
advanced security features
high price point
average battery life
heavier than competitors
noisy under load
| DESIGN AND DIMENSIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QW) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.85 cm x 23.556 cm x 1.89 cm | 36.18 cm x 24.57 cm x 1.84 cm |
| Weight | 1.73 kg | 1.7 kg |
| Case Material | - | Aluminum, glass-fibre reinforced plastic, carbon fibre reinforced plastic |
| Colour | Carbon black | Black paint |
| DISPLAY | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QW) |
|---|
| Screen Size (Type) | 15.6" | 15.6" - IPS |
|---|---|---|
| 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 | 500 cd/m² |
| Colour Gamut | 45% NTSC | 72% 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, HDR (high dynamic range), 170° viewing angle, Dolby Vision |
| PROCESSOR | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QW) |
|---|
| CPU | Intel Core i3 (11th Gen) 1115G4 / 3 GHz | Intel Core i9 (9th Gen) 9880H / 2.3 GHz |
|---|---|---|
| Max Turbo Speed | 4.1 GHz | 4.8 GHz |
| Number of Cores | Dual-Core | 8-core |
| Cache | 6 MB | 16 MB |
| 64-bit Computing | - | Yes |
| Chipset | - | Mobile Intel CM246 |
| Features | Intel Turbo Boost Technology 2.0, Intel Smart Cache | Integrated memory controller |
| MEMORY | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QW) |
|---|
| RAM | 4 GB (1 x 4 GB) | 16 GB (2 x 8 GB) |
|---|---|---|
| Max RAM Supported | 16 GB | 64 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 | 2 |
| Empty Slots | 1 | 0 |
| STORAGE | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QW) |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD M.2 PCIe 3.0 x4 - NVM Express (NVMe) | 512 GB SSD M.2 2280 PCIe 3.0 x4 - TCG Opal Encryption - Intel |
|---|
| AUDIO & VIDEO | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QW) |
|---|
| Multi-GPU Configuration | - | 1 single GPU card / integrated GPU |
|---|---|---|
| Graphics Processor (GPU) | Intel UHD Graphics | NVIDIA GeForce GTX 1650 / Intel UHD Graphics 630 |
| Video Memory | - | 4 GB GDDR5 SDRAM |
| Video System Features | - | Max-Q design |
| Camera | Yes - HD | Yes - 720p |
| Resolution | 0.92 Megapixel | - |
| Camera Features | 78.6 degrees, RGB camera | IR 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 | - | 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) (20QW) |
|---|
| 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 |
| Network Interface | - | Gigabit Ethernet |
| BATTERY | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QW) |
|---|
| Technology | 3-cell lithium polymer | 4-cell 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) (20QW) |
|---|
| 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, 20 V |
| INPUT | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QW) |
|---|
| 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) (20QW) |
|---|
| 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 LAN (on supplied cable) |
|---|---|---|
| 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) (20QW) |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition in S mode | Windows 10 Pro 64-bit Edition |
|---|---|---|
| Software Included | Microsoft Office (30 days trial, excludes office licence) | - |
| MISCELLANEOUS | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QW) |
|---|
| Included Accessories | Power adapter | Power adapter, ThinkPad Ethernet Extension cable |
|---|---|---|
| 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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