In depth comparison and review of Dell Inspiron 15 3510 and Lenovo ThinkPad X1 Extreme Gen 5 (21DE). 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 X1 Extreme Gen 5 (21DE) based on its technical characteristics, features, user experience, expert reviews and price level.
powerful intel processors
robust build quality
excellent 4k display
advanced security features
wide connectivity options
high price point
heavier than competitors
average battery life
loud under load
| DESIGN AND DIMENSIONS | Dell Inspiron 15 3510 | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.85 cm x 23.556 cm x 1.89 cm | 35.95 cm x 25.38 cm x 1.79 cm |
| Weight | 1.65 kg | 1.88 kg |
| Case Material | - | Aluminium (bottom), carbon fibre (top) |
| Colour | Platinum silver | Black paint |
| DISPLAY | Dell Inspiron 15 3510 | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Screen Size (Type) | 15.6" - TN | 16" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1366 x 768 (HD) | 2560 x 1600 (WQXGA) |
| Pixel Density (ppi) | 100 | - |
| V-Sync Rate at Max Res. | 60 Hz | 165 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | - | 16:10 |
| Image Brightness | 220 cd/m² | 500 cd/m² |
| Colour Gamut | 45% NTSC | 100% sRGB |
| 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, 178° viewing angle, Low Blue Light technology, X-Rite Pantone factory color calibration |
| PROCESSOR | Dell Inspiron 15 3510 | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| CPU | Intel Celeron N4020 / 1.1 GHz | Intel Core i7 (12th Gen) 12700H / 2.3 GHz |
|---|---|---|
| Max Turbo Speed | 2.8 GHz | 4.7 GHz |
| Number of Cores | Dual-Core | 14-core |
| Cache | 4 MB | 24 MB |
| Features | Intel Burst Technology | Integrated memory controller |
| MEMORY | Dell Inspiron 15 3510 | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| RAM | 4 GB (1 x 4 GB) | 16 GB (1 x 16 GB) |
|---|---|---|
| Max RAM Supported | 8 GB | 64 GB |
| RAM Type | DDR4 SDRAM | DDR5 SDRAM |
| Speed | 2400 MHz | 4800 MHz |
| Rated Speed | 2400 MHz | 4800 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 262-pin |
| Slots Qty | 1 | 2 |
| Empty Slots | 0 | 1 |
| STORAGE | Dell Inspiron 15 3510 | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD M.2 PCIe 2.0 x4 - NVM Express (NVMe) | 512 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe), Performance |
|---|
| AUDIO & VIDEO | Dell Inspiron 15 3510 | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Multi-GPU Configuration | - | 1 single GPU card / integrated GPU |
|---|---|---|
| Graphics Processor (GPU) | Intel UHD Graphics 600 | NVIDIA GeForce RTX 3050 Ti / Intel Iris Xe Graphics |
| Max Monitors Supported | - | 4 external monitor(s) |
| Video Memory | - | 4 GB GDDR6 SDRAM |
| Camera | Yes - HD | Yes - 1080p |
| Resolution | 0.92 Megapixel | - |
| Camera Features | 78.6 degrees, RGB camera | Privacy shutter, IR camera, Windows Hello, 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 ALC3306 |
| Compliant Standards | High Definition Audio | High Definition Audio, Dolby Audio Premium, Dolby Voice |
| COMMUNICATIONS | Dell Inspiron 15 3510 | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | NFC, Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | Intel Wireless-AC 9462 - M.2 2230 | Intel Wi-Fi 6E AX 211 |
| Features | Single stream (1x1) | Dual stream (2x2) |
| BATTERY | Dell Inspiron 15 3510 | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Technology | 3-cell lithium polymer | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 41 Wh | 90 Wh |
| AC ADAPTER | Dell Inspiron 15 3510 | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 19.5 V, 3.34 A | 170 Watt |
| INPUT | Dell Inspiron 15 3510 | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | - | Yes |
| Features | - | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls, glass touchpad |
| CONNECTIONS & EXPANSIONS | Dell Inspiron 15 3510 | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Slots | - | 2 x M.2 (PCI Express 4.0 x4) (1 free) |
|---|---|---|
| Interfaces | HDMI 2 x USB 3.2 Gen 1 USB 2.0 Headphone/microphone combo jack |
USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) 2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) HDMI Headphone/microphone combo jack |
| Memory Card Reader | Yes (SD Card, SDHC Card, SDXC Card) | Yes (SD Express Card) |
| SOFTWARE | Dell Inspiron 15 3510 | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Operating System (OS) | Windows 11 Home | Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence - German |
|---|---|---|
| Software Included | McAfee LiveSafe (12 months subscription), Microsoft Office (30 days trial, excludes office licence) | Glance by Mirametrix |
| MISCELLANEOUS | Dell Inspiron 15 3510 | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|---|---|
| Security | - | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Security Slot Type | - | Kensington nano security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | - | Administrator password, system password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, USB FIDO (Fast Identity Online) device integration, Firmware Resiliency 3.0, certificate based BIOS authentication |
| Compliant Standards | - | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified, TÜV Rheinland Low Blue Light Method 2 |
| ENERGY STAR Certified | Yes | Yes |
| EPEAT Compliant | - | EPEAT Gold |
| TCO Certified | - | TCO Certified Notebooks 9 |
| Max Operating Temperature | 40 °C | 35 °C |
| Min Operating Temperature | 0 °C | 5 °C |
| Humidity Range Operating | 10 - 90% (non-condensing) | 8 - 95% |
| Manufacturer Warranty | - | Base warranty - 3 years - pick-up and return Base warranty - battery - 1 year Extended warranty - 3 years - on-site |
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