In depth comparison and review of Dell Inspiron 15 3510 and Lenovo ThinkPad E15 Gen 2 (20TE). 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 3510 based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
decent battery life
lightweight design
solid build quality
simple user interface
average display quality
limited performance capacity
minimal connectivity options
basic graphics capability
Advantages and disadvantages of Lenovo ThinkPad E15 Gen 2 (20TE) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard feel
good security features
decent battery life
affordable price point
average display quality
modest graphics performance
no thunderbolt support
heavier design
| DESIGN AND DIMENSIONS | Dell Inspiron 15 3510 | Lenovo ThinkPad E15 Gen 2 (20TE) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.85 cm x 23.556 cm x 1.89 cm | 36.5 cm x 24 cm x 1.89 cm |
| Weight | 1.65 kg | 1.7 kg |
| Case Material | - | Aluminium (top), polycarbonate ABS (bottom) |
| Colour | Platinum silver | Black |
| DISPLAY | Dell Inspiron 15 3510 | Lenovo ThinkPad E15 Gen 2 (20TE) |
|---|
| Screen Size (Type) | 15.6" - TN | 15.6" - TN |
|---|---|---|
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 1366 x 768 (HD) | 1920 x 1080 (Full HD) |
| Pixel Density (ppi) | 100 | - |
| V-Sync Rate at Max Res. | 60 Hz | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | - | 16:9 |
| Image Brightness | 220 cd/m² | 220 cd/m² |
| Colour Gamut | 45% NTSC | 45% NTSC |
| Features | Anti-glare, 25 ms response rate, Narrow Border Display, 0.252 mm pixel pitch, ±40° horizontal viewing angle, +10/-30 vertical viewing angle | Anti-glare, 90° viewing angle |
| PROCESSOR | Dell Inspiron 15 3510 | Lenovo ThinkPad E15 Gen 2 (20TE) |
|---|
| CPU | Intel Celeron N4020 / 1.1 GHz | Intel Core i5 (11th Gen) 1135G7 / 2.4 GHz |
|---|---|---|
| Max Turbo Speed | 2.8 GHz | 4.2 GHz |
| Number of Cores | Dual-Core | Quad-Core |
| Cache | 4 MB | 8 MB |
| Features | Intel Burst Technology | Integrated memory controller |
| MEMORY | Dell Inspiron 15 3510 | Lenovo ThinkPad E15 Gen 2 (20TE) |
|---|
| RAM | 4 GB (1 x 4 GB) | 8 GB (1 x 8 GB) |
|---|---|---|
| Max RAM Supported | 8 GB | 32 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2400 MHz | 3200 MHz |
| Rated Speed | 2400 MHz | 3200 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 1 | 1 |
| Empty Slots | 0 | 0 |
| STORAGE | Dell Inspiron 15 3510 | Lenovo ThinkPad E15 Gen 2 (20TE) |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD M.2 PCIe 2.0 x4 - NVM Express (NVMe) | 256 GB SSD M.2 2242 PCIe 3.0 x4 - Samsung |
|---|
| AUDIO & VIDEO | Dell Inspiron 15 3510 | Lenovo ThinkPad E15 Gen 2 (20TE) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics 600 | NVIDIA GeForce MX450 / Intel Iris Xe Graphics |
|---|---|---|
| Max Monitors Supported | - | 2 external monitor(s) |
| Video Memory | - | 2 GB GDDR5 SDRAM |
| Camera | Yes - HD | Yes - 720p |
| Resolution | 0.92 Megapixel | - |
| Camera Features | 78.6 degrees, RGB camera | Privacy shutter, fixed focus |
| 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 ALC3204 | Realtek ALC3287 |
| Compliant Standards | High Definition Audio | High Definition Audio, Dolby Audio |
| Audio Features | - | Harman audio technology |
| COMMUNICATIONS | Dell Inspiron 15 3510 | Lenovo ThinkPad E15 Gen 2 (20TE) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | 802.11a/b/g/n/ac/ax, Bluetooth 5.1 |
|---|---|---|
| Wireless Controller | Intel Wireless-AC 9462 - M.2 2230 | Intel Wi-Fi 6 AX 201 - M.2 Card |
| Network Interface | - | Gigabit Ethernet |
| Ethernet Controller | - | Realtek RTL8111H-CG |
| Features | Single stream (1x1) | Wake-on-LAN (WOL), dual stream (2x2) |
| BATTERY | Dell Inspiron 15 3510 | Lenovo ThinkPad E15 Gen 2 (20TE) |
|---|
| Technology | 3-cell lithium polymer | 3-cell lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 41 Wh | 45 Wh |
| Battery Life | - | Up to 10.8 hours |
| AC ADAPTER | Dell Inspiron 15 3510 | Lenovo ThinkPad E15 Gen 2 (20TE) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 19.5 V, 3.34 A | 65 Watt |
| INPUT | Dell Inspiron 15 3510 | Lenovo ThinkPad E15 Gen 2 (20TE) |
|---|
| Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Numeric Keypad | Yes | Yes |
| Features | - | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls |
| CONNECTIONS & EXPANSIONS | Dell Inspiron 15 3510 | Lenovo ThinkPad E15 Gen 2 (20TE) |
|---|
| Slots | - | 1 x M.2 (PCI Express 3.0 x4) (1 free) |
|---|---|---|
| Interfaces | HDMI 2 x USB 3.2 Gen 1 USB 2.0 Headphone/microphone combo jack |
USB 2.0 USB 3.2 Gen 1 (Always On) USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) HDMI LAN Headphone/microphone combo jack |
| Memory Card Reader | Yes (SD Card, SDHC Card, SDXC Card) | - |
| SOFTWARE | Dell Inspiron 15 3510 | Lenovo ThinkPad E15 Gen 2 (20TE) |
|---|
| Operating System (OS) | Windows 11 Home | Windows 10 Pro 64-bit Edition |
|---|---|---|
| Software Included | McAfee LiveSafe (12 months subscription), Microsoft Office (30 days trial, excludes office licence) | - |
| MISCELLANEOUS | Dell Inspiron 15 3510 | Lenovo ThinkPad E15 Gen 2 (20TE) |
|---|
| Included Accessories | Power adapter | USB-C power adapter |
|---|---|---|
| Security | - | Firmware 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-810H tested, self-healing BIOS |
| Compliant Standards | - | RoHS, TUV Rheinland Low Blue Light Certification, Energy-Related Products (ErP) Lot 3, TCG Certified |
| ENERGY STAR Certified | Yes | Yes |
| EPEAT Compliant | - | EPEAT Gold |
| Max Operating Temperature | 40 °C | 35 °C |
| Min Operating Temperature | 0 °C | 5 °C |
| Humidity Range Operating | 10 - 90% (non-condensing) | 8 - 95% |
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