Side by side comparison and review of Dell Inspiron 15 3511 and Lenovo ThinkPad T495s (20QK). 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 T495s (20QK) based on its technical characteristics, features, user experience, expert reviews and price level.
lightweight and portable
robust build quality
excellent keyboard comfort
good battery life
efficient AMD processor
limited storage capacity
no Thunderbolt support
average display brightness
higher price point
DESIGN AND DIMENSIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad T495s (20QK) |
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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 | 32.9 cm x 22.615 cm x 1.67 cm |
Weight | 1.73 kg | 1.33 kg |
Case Material | - | Carbon fibre reinforced plastic, magnesium-aluminum alloy |
Colour | Carbon black | Black |
DISPLAY | Dell Inspiron 15 3511 | Lenovo ThinkPad T495s (20QK) |
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Screen Size (Type) | 15.6" | 14" |
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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 | 45% |
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, Wide Viewing Angle, 170° viewing angle |
PROCESSOR | Dell Inspiron 15 3511 | Lenovo ThinkPad T495s (20QK) |
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CPU | Intel Core i3 (11th Gen) 1115G4 / 3 GHz | AMD Ryzen 5 Pro 3500U / 2.1 GHz |
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Max Turbo Speed | 4.1 GHz | 3.7 GHz |
Number of Cores | Dual-Core | Quad-Core |
Cache | 6 MB | L3 - 4 MB |
64-bit Computing | - | Yes |
Features | Intel Turbo Boost Technology 2.0, Intel Smart Cache | Integrated memory controller |
MEMORY | Dell Inspiron 15 3511 | Lenovo ThinkPad T495s (20QK) |
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RAM | 4 GB (1 x 4 GB) | 8 GB (provided memory is soldered) |
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Max RAM Supported | 16 GB | - |
RAM Type | DDR4 SDRAM | DDR4 SDRAM |
Speed | 2666 MHz | 2400 MHz |
Rated Speed | 2666 MHz | 2666 MHz |
Form Factor | SO-DIMM 260-pin | - |
Slots Qty | 2 | - |
Empty Slots | 1 | - |
STORAGE | Dell Inspiron 15 3511 | Lenovo ThinkPad T495s (20QK) |
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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 2280 PCIe 3.0 x4 - TCG Opal Encryption, NVM Express (NVMe) - Samsung |
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AUDIO & VIDEO | Dell Inspiron 15 3511 | Lenovo ThinkPad T495s (20QK) |
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Graphics Processor (GPU) | Intel UHD Graphics | AMD Radeon Vega 8 |
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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 Premium |
COMMUNICATIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad T495s (20QK) |
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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 Dual Band Wireless-AC 9260 |
Network Interface | - | Gigabit Ethernet |
Ethernet Controller | - | Realtek RTL8111EPV |
Compliant Standards | - | DASH |
Features | - | Gigabit Ethernet via optional Ethernet (RJ-45) adapter |
WWAN |
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Generation | - | 4G |
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Technology | - | LTE Advanced |
Controller | - | FIBOCOM L850-GL - M.2 Card |
BATTERY | Dell Inspiron 15 3511 | Lenovo ThinkPad T495s (20QK) |
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Technology | 3-cell lithium polymer | 3-cell Lithium Ion |
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Battery Capacity (Size) | 41 Wh | 57 Wh |
Battery Life | - | Up to 16.4 hours |
AC ADAPTER | Dell Inspiron 15 3511 | Lenovo ThinkPad T495s (20QK) |
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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, 5 / 9 / 15 / 20 V |
INPUT | Dell Inspiron 15 3511 | Lenovo ThinkPad T495s (20QK) |
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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 T495s (20QK) |
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Slots | - | 1 x Nano-SIM card (1 free) |
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Interfaces | HDMI USB 2.0 2 x USB 3.2 Gen 1 Headphone/microphone combo jack |
USB 3.1 Gen 2 USB 3.1 Gen 1 (Always On) 2 x USB-C 3.1 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery) HDMI Lenovo Ethernet extension connector Headphone/microphone combo jack LAN (on supplied cable) Dock |
Memory Card Reader | Yes (SD Card, SDHC Card, SDXC Card) | Yes (microSD) |
SOFTWARE | Dell Inspiron 15 3511 | Lenovo ThinkPad T495s (20QK) |
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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 T495s (20QK) |
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Dockable | - | Yes |
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Included Accessories | Power adapter | USB-C power adapter, ThinkPad Ethernet Extension Cable Gen 2 |
Security | - | Trusted Platform Module (TPM 2.0) Security Chip, smart card 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 |
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) | - |