In depth comparison and review of Dell XPS 15 9575 2-in-1 and Lenovo ThinkPad X390 Yoga (20NN). 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 Lenovo ThinkPad X390 Yoga (20NN) based on its technical characteristics, features, user experience, expert reviews and price level.
flexible 2-in-1 design
robust build quality
excellent keyboard comfort
good battery life
reliable performance
higher price point
limited graphics power
no 4K display option
modest storage capacity
| DESIGN AND DIMENSIONS | Dell XPS 15 9575 2-in-1 | Lenovo ThinkPad X390 Yoga (20NN) |
|---|
| Product Type | Notebook - flip design | Notebook - flip design |
|---|---|---|
| Dimensions (WxDxH) | 35.4 cm x 23.5 cm x 1.6 cm | 31.04 cm x 21.9 cm x 1.595 cm |
| Weight | 2 kg | 1.29 kg |
| Case Material | - | Carbon fibre |
| Colour | Silver | Black |
| DISPLAY | Dell XPS 15 9575 2-in-1 | Lenovo ThinkPad X390 Yoga (20NN) |
|---|
| Screen Size (Type) | 15.6" - IPS | 13.3" - IPS |
|---|---|---|
| Touchscreen | Yes | Yes (10-point multi-touch) |
| LCD Backlight Technology | - | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| V-Sync Rate at Max Res. | 60 Hz | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | - | 16:9 |
| Image Brightness | 400 cd/m² | 300 cd/m² |
| Colour Gamut | 100% Adobe RGB | 72% |
| Features | Anti-reflective, Infinity Edge display, ±89° horizontal viewing angle, ±89° vertical viewing angle, 0.17925 mm pixel pitch | Glossy, anti-reflective, anti-smudge, 170° viewing angle |
| PROCESSOR | Dell XPS 15 9575 2-in-1 | Lenovo ThinkPad X390 Yoga (20NN) |
|---|
| CPU | Intel Core i5 (8th Gen) 8305G / 2.8 GHz | Intel Core i5 (8th Gen) 8265U / 1.6 GHz |
|---|---|---|
| Max Turbo Speed | 3.8 GHz | 3.9 GHz |
| Number of Cores | Quad-Core | Quad-Core |
| Cache | 6 MB | 6 MB |
| 64-bit Computing | Yes | Yes |
| Chipset | Mobile Intel QM175 | - |
| Features | Intel Turbo Boost Technology 2.0 | Integrated memory controller |
| MEMORY | Dell XPS 15 9575 2-in-1 | Lenovo ThinkPad X390 Yoga (20NN) |
|---|
| RAM | 8 GB (provided memory is soldered) | 8 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2400 MHz | 2400 MHz |
| Rated Speed | 2400 MHz | 2666 MHz |
| STORAGE | Dell XPS 15 9575 2-in-1 | Lenovo ThinkPad X390 Yoga (20NN) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2280 | 256 GB SSD M.2 2280 PCIe - TCG Opal Encryption 2, NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Dell XPS 15 9575 2-in-1 | Lenovo ThinkPad X390 Yoga (20NN) |
|---|
| Graphics Processor (GPU) | AMD Radeon RX Vega 870 | Intel UHD Graphics |
|---|---|---|
| Video Memory | 4 GB HBM2 | - |
| Camera | Yes - 1280 x 720 (standard), 340 x 340 (infrared) | Yes - 720p |
| Resolution | 0.92 Megapixel | - |
| Camera Features | 720p HD movie recording, IR camera, Windows Hello, 2 x infrared emitters | IR camera, ThinkShutter camera privacy |
| Video Resolutions | 1280 x 720 | - |
| Frame Rate | 30 frames per second | - |
| Sound | Stereo speakers, array microphone | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3271-CG | Realtek ALC3287 |
| Compliant Standards | Wave MAXXAudio Pro | High Definition Audio, Dolby Audio Premium |
| Audio Features | MaxxAudio | - |
| COMMUNICATIONS | Dell XPS 15 9575 2-in-1 | Lenovo ThinkPad X390 Yoga (20NN) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.1 | 802.11a/b/g/n/ac, Bluetooth 5.0 |
|---|---|---|
| Wireless Controller | Killer Wireless-AC 1435 | Intel Wireless-AC 9560 |
| Features | - | Gigabit Ethernet via optional Ethernet (RJ-45) adapter |
| WWAN |
|---|
| Generation | - | 4G |
|---|---|---|
| Technology | - | LTE |
| Controller | - | FIBOCOM L830-EB - M.2 Card |
| BATTERY | Dell XPS 15 9575 2-in-1 | Lenovo ThinkPad X390 Yoga (20NN) |
|---|
| Technology | 6-cell Lithium Ion | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 75 Wh | 50 Wh |
| Battery Life | - | Up to 14.5 hours |
| AC ADAPTER | Dell XPS 15 9575 2-in-1 | Lenovo ThinkPad X390 Yoga (20NN) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 130 Watt, 20 V, 6.5 A | 65 Watt |
| INPUT | Dell XPS 15 9575 2-in-1 | Lenovo ThinkPad X390 Yoga (20NN) |
|---|
| Type | Keyboard, touchpad | Keyboard, digitizer, TrackPoint, digital pen, UltraNav |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | Touchpad with gesture support | Spill-resistant, multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Dell XPS 15 9575 2-in-1 | Lenovo ThinkPad X390 Yoga (20NN) |
|---|
| Slots | - | 1 x Nano-SIM card (1 free) |
|---|---|---|
| Interfaces | 2 x USB-C 3.1 Gen 1 (supports Thunderbolt 3, DisplayPort Alt Mode) (Power Delivery) 2 x USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) (Power Delivery) Headphone/microphone combo jack |
USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) (Power Delivery) USB-C 3.1 Gen 2 (supports Thunderbolt 3, DisplayPort Alt Mode) (Power Delivery) HDMI Dock Headphone/microphone combo jack Lenovo Ethernet extension connector |
| Memory Card Reader | Yes (microSD, microSDHC, microSDXC) | Yes (microSD) |
| SOFTWARE | Dell XPS 15 9575 2-in-1 | Lenovo ThinkPad X390 Yoga (20NN) |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition | Windows 10 Pro 64-bit Edition - English |
|---|---|---|
| Software Included | Microsoft Office 2013 (Trial), McAfee (30 days trial) | - |
| MISCELLANEOUS | Dell XPS 15 9575 2-in-1 | Lenovo ThinkPad X390 Yoga (20NN) |
|---|
| Dockable | - | Yes |
|---|---|---|
| Included Accessories | USB-C power adapter | ThinkPad Pen Pro, USB-C power adapter |
| Integrated Options | - | 3-axis gyro sensor, 3-axis accelerometer |
| Security | Trusted Platform Module (TPM) Security Chip, fingerprint reader | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader |
| 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 | Battery life Indicator, Dell Premium Active Pen magnets | Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810G tested |
| Compliant Standards | - | RoHS |
| SAR Value | - | 1.696 W/kg (body), 1.696 W/kg (limb) |
| ENERGY STAR Certified | - | Yes |
| Max Operating Temperature | 35 °C | - |
| Min Operating Temperature | 0 °C | - |
| Humidity Range Operating | 10 - 90% (non-condensing) | - |
| Manufacturer Warranty | Limited warranty - 15 months | Limited warranty - 3 years - pick-up and return Limited warranty - battery - 1 year |
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