In depth comparison and review of Dell XPS 15 9510 and Lenovo ThinkPad X240 (20AM). 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 XPS 15 9510 based on its technical characteristics, features, user experience, expert reviews and price level.
stunning 4k display
powerful intel performance
sleek aluminum design
impressive battery life
good port selection
higher price point
heavier than competitors
no full-size usb
can get quite hot
| DESIGN AND DIMENSIONS | Dell XPS 15 9510 | Lenovo ThinkPad X240 (20AM) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 34.44 cm x 23.03 cm x 1.8 cm | 30.55 cm x 20.85 cm x 1.99 cm |
| Weight | 2.04 kg | 1.47 kg |
| Case Material | - | Glass-fibre reinforced plastic |
| Colour | Platinum silver with black interior | - |
| DISPLAY | Dell XPS 15 9510 | Lenovo ThinkPad X240 (20AM) |
|---|
| Screen Size (Type) | 15.6" | 12.5" |
|---|---|---|
| LCD Backlight Technology | - | LED backlight |
| Screen Resolution | 1920 x 1200 (WUXGA) | 1366 x 768 (HD) |
| Pixel Density (ppi) | 145 | - |
| V-Sync Rate at Max Res. | 60 Hz | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:10 | 16:9 |
| Image Brightness | 500 cd/m² | - |
| Colour Gamut | 100% sRGB | - |
| Features | Anti-glare, Wide Viewing Angle, ±85° horizontal viewing angle, ±85° vertical viewing angle, 35 ms response rate, 0.18 mm pixel pitch, Eyesafe technology | Anti-glare |
| PROCESSOR | Dell XPS 15 9510 | Lenovo ThinkPad X240 (20AM) |
|---|
| CPU | Intel Core i5 (11th Gen) 11400H | Intel Core i3 (4th Gen) 4010U / 1.7 GHz |
|---|---|---|
| Max Turbo Speed | 4.5 GHz | - |
| Number of Cores | 6-core | Dual-Core |
| Cache | 12 MB | 3 MB |
| 64-bit Computing | - | Yes |
| Chipset | Intel WM590 | - |
| Features | Intel Smart Cache | Integrated memory controller |
| MEMORY | Dell XPS 15 9510 | Lenovo ThinkPad X240 (20AM) |
|---|
| RAM | 8 GB (2 x 4 GB) | 2 GB (1 x 2 GB) |
|---|---|---|
| Max RAM Supported | 64 GB | 8 GB |
| RAM Type | DDR4 SDRAM | DDR3L SDRAM |
| Speed | 3200 MHz | 1600 MHz / PC3L-12800 |
| Rated Speed | 3200 MHz | 1600 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 204-pin |
| Slots Qty | 2 | 1 |
| Empty Slots | 0 | 0 |
| STORAGE | Dell XPS 15 9510 | Lenovo ThinkPad X240 (20AM) |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 2280 PCIe - NVM Express (NVMe) | 500 GB HDD SATA 6Gb/s / 7200 rpm |
|---|
| AUDIO & VIDEO | Dell XPS 15 9510 | Lenovo ThinkPad X240 (20AM) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | Intel HD Graphics 4400 |
|---|---|---|
| Camera | Yes - 1280 x 720 (standard), 576 x 360 (infrared) | Yes - 720p |
| Resolution | 0.9 Megapixel (standard), 0.2 Megapixel (infrared) | - |
| Camera Features | IR camera, Windows Hello, 78.3 degrees | Face tracking |
| Image Sensor Type | CMOS | - |
| Video Resolutions | 1280 x 720 | - |
| Frame Rate | 30 frames per second | - |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, two microphones |
| Codec | Realtek ALC3281-CG | Realtek ALC3232 |
| Compliant Standards | High Definition Audio | High Definition Audio, Dolby Advanced Audio v2 |
| COMMUNICATIONS | Dell XPS 15 9510 | Lenovo ThinkPad X240 (20AM) |
|---|
| Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.1 | 802.11b/g/n, Bluetooth 4.0 |
|---|---|---|
| Wireless Controller | Killer Wi-Fi 6 AX1650 | M.2 Card |
| Network Interface | - | Gigabit Ethernet |
| Ethernet Controller | - | Intel I218-V |
| WWAN |
|---|
| Generation | - | WWAN |
|---|
| BATTERY | Dell XPS 15 9510 | Lenovo ThinkPad X240 (20AM) |
|---|
| Technology | 3-cell Lithium Ion | 6-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 56 Wh | 47 Wh |
| AC ADAPTER | Dell XPS 15 9510 | Lenovo ThinkPad X240 (20AM) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 90 Watt, 20 V, 4.5 A | 45 Watt |
| INPUT | Dell XPS 15 9510 | Lenovo ThinkPad X240 (20AM) |
|---|
| Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Backlight | Yes | - |
| Features | - | Spill-resistant, multi-touch touchpad |
| CONNECTIONS & EXPANSIONS | Dell XPS 15 9510 | Lenovo ThinkPad X240 (20AM) |
|---|
| Interfaces | USB-C 3.2 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery) 2 x USB4 Gen 3x2 (supports Thunderbolt 4, DisplayPort 1.4a Alt Mode) (Power Delivery) Headphone/microphone combo jack |
2 x USB 3.0 VGA Mini DisplayPort LAN Dock Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | Yes (SD Card, SDHC Card, SDXC Card) | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
| SOFTWARE | Dell XPS 15 9510 | Lenovo ThinkPad X240 (20AM) |
|---|
| Operating System (OS) | Windows 11 Home | Microsoft Windows 7 Professional 64-bit Edition - French |
|---|---|---|
| Software Included | McAfee LiveSafe (12 months subscription), Microsoft Office (30 days trial, excludes office licence) | - |
| MISCELLANEOUS | Dell XPS 15 9510 | Lenovo ThinkPad X240 (20AM) |
|---|
| Dockable | - | Yes |
|---|---|---|
| Included Accessories | USB-C power adapter | Power adapter |
| Security | Fingerprint reader | Trusted Platform Module (TPM 1.2) Security Chip |
| Security Slot Type | Noble Wedge security slot | Kensington security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | - | Administrator password, hard drive password, power-on password, ThinkVantage Active Protection System, 1 USB 3.0 (Always On), MIL-STD-810G tested |
| Compliant Standards | DisplayPort 1.4a | RoHS, GREENGUARD |
| ENERGY STAR Certified | Yes | Yes |
| Max Operating Temperature | 35 °C | - |
| Min Operating Temperature | 0 °C | - |
| Humidity Range Operating | 10 - 90% (non-condensing) | - |
| Manufacturer Warranty | - | Limited warranty - 1 year - pick-up and return |
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