Side by side comparison and review of Lenovo ThinkPad T490 and Lenovo IdeaPad S540-15IML (81NG). Compare dimensions, processors, batteries, storage capacities and other key specifications and features to simplify the choice of your perfect laptop. Our goal is to make it easier for you to decide on the laptop that will best meet your expectations by revealing the main differences between the products.
Advantages and disadvantages of Lenovo ThinkPad T490 based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard comfort
impressive battery life
good security features
reliable performance
average display quality
limited graphics power
noisy under load
heavier than competitors
Advantages and disadvantages of Lenovo IdeaPad S540-15IML (81NG) based on its technical characteristics, features, user experience, expert reviews and price level.
sleek aluminum design
sharp full HD display
fast processing speeds
ample storage capacity
good battery life
heavier than competitors
no optical drive
limited port selection
average graphics performance
| DESIGN AND DIMENSIONS | Lenovo ThinkPad T490 | Lenovo IdeaPad S540-15IML (81NG) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | - | 35.8 cm x 24.5 cm x 1.69 cm |
| Weight | - | 1.95 kg |
| Case Material | - | Aluminum, glass |
| Colour | - | Mineral grey |
| DISPLAY | Lenovo ThinkPad T490 | Lenovo IdeaPad S540-15IML (81NG) |
|---|
| Screen Size (Type) | 14" | 15.6" - IPS |
|---|---|---|
| LCD Backlight Technology | - | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | - | 16:9 |
| Image Brightness | - | 300 cd/m² |
| Colour Gamut | - | 72% |
| Features | - | Glossy, glass cover |
| PROCESSOR | Lenovo ThinkPad T490 | Lenovo IdeaPad S540-15IML (81NG) |
|---|
| CPU | Intel Core i5 (8th Gen) 8365U / 1.6 GHz | Intel Core i5 (10th Gen) 10210U / 1.6 GHz |
|---|---|---|
| Max Turbo Speed | 4.1 GHz | 4.2 GHz |
| Number of Cores | Quad-Core | Quad-Core |
| Cache | 6 MB | 6 MB |
| 64-bit Computing | - | Yes |
| Features | - | Integrated memory controller |
| MEMORY | Lenovo ThinkPad T490 | Lenovo IdeaPad S540-15IML (81NG) |
|---|
| RAM | 8 GB | 8 GB (1 x 4 GB + 4 GB (soldered)) |
|---|---|---|
| Max RAM Supported | - | 12 GB |
| RAM Type | - | DDR4 SDRAM |
| Speed | - | 2400 MHz |
| Rated Speed | - | 2400 MHz |
| Form Factor | - | SO-DIMM 260-pin |
| Slots Qty | - | 1 |
| Empty Slots | - | 0 |
| STORAGE | Lenovo ThinkPad T490 | Lenovo IdeaPad S540-15IML (81NG) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD | 512 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad T490 | Lenovo IdeaPad S540-15IML (81NG) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | Intel UHD Graphics |
|---|---|---|
| Camera | - | Yes - 720p |
| Resolution | - | 1 Megapixel |
| Camera Features | - | Privacy shutter |
| Sound | - | Stereo speakers, dual array microphone |
| Compliant Standards | - | High Definition Audio, Dolby Audio |
| COMMUNICATIONS | Lenovo ThinkPad T490 | Lenovo IdeaPad S540-15IML (81NG) |
|---|
| Wireless | - | 802.11a/b/g/n/ac, Bluetooth 4.2 |
|---|---|---|
| Wireless Controller | - | M.2 Card |
| Features | - | Dual stream (2x2) |
| BATTERY | Lenovo ThinkPad T490 | Lenovo IdeaPad S540-15IML (81NG) |
|---|
| Technology | - | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | - | 70 Wh |
| Battery Life | - | Up to 15 hours |
| AC ADAPTER | Lenovo ThinkPad T490 | Lenovo IdeaPad S540-15IML (81NG) |
|---|
| Input | - | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | - | 65 Watt |
| INPUT | Lenovo ThinkPad T490 | Lenovo IdeaPad S540-15IML (81NG) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | - | Yes |
| Features | - | Multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad T490 | Lenovo IdeaPad S540-15IML (81NG) |
|---|
| Interfaces | Dock | USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) USB-C 3.1 Gen 1 HDMI Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | - | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
| SOFTWARE | Lenovo ThinkPad T490 | Lenovo IdeaPad S540-15IML (81NG) |
|---|
| Operating System (OS) | Windows 10 Pro | Windows 10 Home 64-bit Edition - English |
|---|---|---|
| Software Included | - | Microsoft Office (30 days trial) |
| MISCELLANEOUS | Lenovo ThinkPad T490 | Lenovo IdeaPad S540-15IML (81NG) |
|---|
| Dockable | Yes | - |
|---|---|---|
| Included Accessories | Power adapter | Power adapter |
| Security | - | Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Features | - | Administrator password, hard drive password, power-on password, RapidCharge |
| Compliant Standards | ISO 9001, ISO 14001, ISO 27001, GDPR | RoHS, Energy-Related Products (ErP) Lot 3 |
| SAR Value | - | 1.81 W/kg (body), 1.81 W/kg (limb) |
| Manufacturer Warranty | - | Limited warranty - 1 year - pick-up and return |
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