In depth comparison and review of Lenovo ThinkPad E490 (20N9) and ASUS P540UA (DM1491R). 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 E490 (20N9) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard comfort
good security features
decent battery life
solid performance
average display quality
heavier design
no thunderbolt support
limited graphics power
Advantages and disadvantages of ASUS P540UA (DM1491R) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
solid build quality
decent processor performance
adequate connectivity options
good keyboard feel
average display quality
limited graphics capabilities
moderate battery life
no touchscreen feature
| DESIGN AND DIMENSIONS | Lenovo ThinkPad E490 (20N9) | ASUS P540UA (DM1491R) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 32.9 cm x 24.2 cm x 1.99 cm | 38.1 cm x 25.1 cm x 2.72 cm |
| Weight | 1.75 kg | 1.9 kg |
| Case Material | Aluminum, polycarbonate ABS | - |
| Colour | Black | Chocolate black IMR with hairline (LCD cover), gold IMR with hairline (top) |
| DISPLAY | Lenovo ThinkPad E490 (20N9) | ASUS P540UA (DM1491R) |
|---|
| Screen Size (Type) | 14" - IPS | 15.6" |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 250 cd/m² | 200 cd/m² |
| Colour Gamut | - | 45% NTSC |
| Features | Anti-glare, 170° viewing angle | Anti-glare, Ultra Slim Design Bezel |
| PROCESSOR | Lenovo ThinkPad E490 (20N9) | ASUS P540UA (DM1491R) |
|---|
| CPU | Intel Core i5 (8th Gen) 8265U / 1.6 GHz | Intel Core i5 (7th Gen) 7200U / 2.5 GHz |
|---|---|---|
| Max Turbo Speed | 3.9 GHz | 3.1 GHz |
| Number of Cores | Quad-Core | Dual-Core |
| Cache | 6 MB | 3 MB |
| 64-bit Computing | Yes | - |
| Features | Integrated memory controller | - |
| MEMORY | Lenovo ThinkPad E490 (20N9) | ASUS P540UA (DM1491R) |
|---|
| RAM | 8 GB (1 x 8 GB) | 4 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 32 GB | - |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2400 MHz | - |
| Rated Speed | 2666 MHz | - |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 2 | - |
| Empty Slots | 1 | - |
| STORAGE | Lenovo ThinkPad E490 (20N9) | ASUS P540UA (DM1491R) |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) - Toshiba | 256 GB SSD 2.5" SATA |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad E490 (20N9) | ASUS P540UA (DM1491R) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics 620 | Intel HD Graphics 620 |
|---|---|---|
| Camera | Yes - 720p | Yes - VGA |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, microphone |
| Codec | Conexant CX11880 | - |
| Compliant Standards | High Definition Audio, Dolby Advanced Audio | - |
| Audio Features | - | ASUS SonicMaster, ASUS Bang & Olufsen ICEpower |
| COMMUNICATIONS | Lenovo ThinkPad E490 (20N9) | ASUS P540UA (DM1491R) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | 802.11a/b/g/n/ac, Bluetooth 4.2 |
|---|---|---|
| Wireless Controller | Intel Dual Band Wireless-AC 9260 - M.2 Card | - |
| Network Interface | Gigabit Ethernet | - |
| Ethernet Controller | Realtek R8111GUS | - |
| BATTERY | Lenovo ThinkPad E490 (20N9) | ASUS P540UA (DM1491R) |
|---|
| Technology | 3-cell Lithium Ion | 3-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 45 Wh | 33 Wh |
| Battery Life | Up to 13 hours | - |
| AC ADAPTER | Lenovo ThinkPad E490 (20N9) | ASUS P540UA (DM1491R) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 45 Watt, 19 V, 2.37 A |
| INPUT | Lenovo ThinkPad E490 (20N9) | ASUS P540UA (DM1491R) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Features | Spill-resistant, multi-touch touchpad, buttonless touchpad | Chiclet keyboard |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad E490 (20N9) | ASUS P540UA (DM1491R) |
|---|
| Interfaces | USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) USB-C 3.1 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery) USB 2.0 HDMI LAN Headphone/microphone combo jack |
Headphone/microphone combo jack USB 3.0 2 x USB 2.0 HDMI |
|---|---|---|
| Memory Card Reader | Yes (microSD) | Yes (microSD) |
| SOFTWARE | Lenovo ThinkPad E490 (20N9) | ASUS P540UA (DM1491R) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition | Windows 10 Pro 64-bit Edition |
|---|
| MISCELLANEOUS | Lenovo ThinkPad E490 (20N9) | ASUS P540UA (DM1491R) |
|---|
| Included Accessories | USB-C power adapter | Power adapter |
|---|---|---|
| Security | Trusted Platform Module (TPM 2.0) Security Chip | Firmware Trusted Platform Module (TPM) Security Chip |
| 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 | System password, hard drive password |
| Compliant Standards | RoHS | - |
| SAR Value | 0.47 W/kg (body), 0.47 W/kg (limb) | - |
| ENERGY STAR Certified | Yes | - |
| EPEAT Compliant | EPEAT Silver | - |
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