Detailed comparison and review of Dell Inspiron 15 3511 and Lenovo ThinkPad X1 Extreme (20MG). 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 X1 Extreme (20MG) 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
heavier than competitors
expensive price point
average battery life
limited color accuracy
DESIGN AND DIMENSIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (20MG) |
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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 | 36.18 cm x 24.57 cm x 1.87 cm |
Weight | 1.73 kg | 1.8 kg |
Case Material | - | Aluminum, glass-fibre reinforced plastic, carbon fibre reinforced plastic |
Colour | Carbon black | Black |
DISPLAY | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (20MG) |
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Screen Size (Type) | 15.6" | 15.6" - IPS |
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Touchscreen | - | Yes (10-point multi-touch) |
LCD Backlight Technology | LED backlight | LED backlight |
Screen Resolution | 1920 x 1080 (Full HD) | 3840 x 2160 (Ultra HD 4K) |
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 | 400 cd/m² |
Colour Gamut | 45% NTSC | 100% |
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-reflective, capacitive touch screen, 170° viewing angle, Dolby Vision |
PROCESSOR | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (20MG) |
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CPU | Intel Core i3 (11th Gen) 1115G4 / 3 GHz | Intel Core i7 (8th Gen) 8850H / 2.6 GHz |
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Max Turbo Speed | 4.1 GHz | 4.3 GHz |
Number of Cores | Dual-Core | 6-core |
Cache | 6 MB | 9 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 (20MG) |
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RAM | 4 GB (1 x 4 GB) | 16 GB (2 x 8 GB) |
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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 (20MG) |
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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, NVM Express (NVMe) - Samsung |
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AUDIO & VIDEO | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (20MG) |
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Multi-GPU Configuration | - | 1 single GPU card / integrated GPU |
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Graphics Processor (GPU) | Intel UHD Graphics | NVIDIA GeForce GTX 1050 Ti / Intel UHD Graphics 630 |
Video Memory | - | 4 GB GDDR5 SDRAM |
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 | - | Realtek ALC3286 |
Compliant Standards | High Definition Audio | High Definition Audio, Dolby Audio Premium, Dolby Atmos |
COMMUNICATIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (20MG) |
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Wireless | Bluetooth, 802.11a/b/g/n/ac | 802.11a/b/g/n/ac, Bluetooth 5.0 |
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Wireless Controller | M.2 2230 | Intel Wireless-AC 9560 - M.2 Card |
Features | - | Gigabit Ethernet via optional Ethernet (RJ-45) adapter, dual stream (2x2) |
BATTERY | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (20MG) |
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Technology | 3-cell lithium polymer | 4-cell Lithium Ion |
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Battery Capacity (Size) | 41 Wh | 80 Wh |
Battery Life | - | Up to 14.9 hours |
AC ADAPTER | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (20MG) |
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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 | 135 Watt, 20 V |
INPUT | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (20MG) |
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Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
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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 ThinkPad X1 Extreme (20MG) |
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Interfaces | HDMI USB 2.0 2 x USB 3.2 Gen 1 Headphone/microphone combo jack |
USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) 2 x USB-C 3.1 Gen 2 (supports Thunderbolt 3, DisplayPort Alt Mode) (Power Delivery) HDMI Headphone/microphone combo jack Lenovo Ethernet extension connector |
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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 (20MG) |
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Operating System (OS) | Windows 10 Home 64-bit Edition in S mode | Windows 10 Pro 64-bit Edition |
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Software Included | Microsoft Office (30 days trial, excludes office licence) | - |
MISCELLANEOUS | Dell Inspiron 15 3511 | Lenovo ThinkPad X1 Extreme (20MG) |
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Included Accessories | Power adapter | Power adapter |
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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 | - | 0.193 W/kg (body), 0.193 W/kg (limb) |
ENERGY STAR Certified | Yes | Yes |
Max Operating Temperature | 40 °C | - |
Min Operating Temperature | 0 °C | - |
Humidity Range Operating | 10 - 90% (non-condensing) | - |