Side by side comparison and review of Lenovo ThinkBook 15-IIL (Lenovo ThinkBook 15) and Lenovo IdeaPad S540-14API (Lenovo IdeaPad S540). 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 ThinkBook 15-IIL (Lenovo ThinkBook 15) based on its technical characteristics, features, user experience, expert reviews and price level.
solid build quality
efficient multitasking performance
affordable price point
adequate port selection
fast charging support
average display quality
modest battery life
heavier design
no thunderbolt support
Advantages and disadvantages of Lenovo IdeaPad S540-14API (Lenovo IdeaPad S540) based on its technical characteristics, features, user experience, expert reviews and price level.
slim aluminum design
sharp full hd display
fast charging support
quiet cooling system
adequate port selection
average battery life
no optical drive
modest graphics performance
limited upgrade options
| DESIGN AND DIMENSIONS | Lenovo ThinkBook 15-IIL (Lenovo ThinkBook 15) | Lenovo IdeaPad S540-14API (Lenovo IdeaPad S540) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 36.4 cm x 24.5 cm x 1.89 cm | 32.3 cm x 22.7 cm x 1.59 cm |
| Weight | 1.8 kg | 1.5 kg |
| Case Material | Aluminum, polycarbonate ABS | Aluminum, polycarbonate ABS |
| Colour | Mineral grey | Mineral grey | Copper |
| DISPLAY | Lenovo ThinkBook 15-IIL (Lenovo ThinkBook 15) | Lenovo IdeaPad S540-14API (Lenovo IdeaPad S540) |
|---|
| Screen Size (Type) | 15.6" - TN | 14" - IPS |
|---|---|---|
| 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 | 220 cd/m² | 250 cd/m² |
| Colour Gamut | - | 45% |
| Features | Anti-glare, Wide Viewing Angle | Anti-glare |
| PROCESSOR | Lenovo ThinkBook 15-IIL (Lenovo ThinkBook 15) | Lenovo IdeaPad S540-14API (Lenovo IdeaPad S540) |
|---|
| CPU | Intel Core i3 (10th Gen) 1005G1 / 1.2 GHz | AMD Ryzen 5 3500U / 2.1 GHz |
|---|---|---|
| Max Turbo Speed | 3.4 GHz | 3.7 GHz |
| Number of Cores | Dual-Core | Quad-Core |
| Cache | 4 MB | L3 - 4 MB |
| 64-bit Computing | Yes | Yes |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo ThinkBook 15-IIL (Lenovo ThinkBook 15) | Lenovo IdeaPad S540-14API (Lenovo IdeaPad S540) |
|---|
| RAM | 4 GB (1 x 4 GB) | 8 GB (1 x 4 GB + 4 GB (soldered)) |
|---|---|---|
| Max RAM Supported | 16 GB | 12 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2666 MHz | 2400 MHz |
| Rated Speed | 2666 MHz | 2400 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 1 | 1 |
| Empty Slots | 0 | 0 |
| STORAGE | Lenovo ThinkBook 15-IIL (Lenovo ThinkBook 15) | Lenovo IdeaPad S540-14API (Lenovo IdeaPad S540) |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD M.2 2242 PCIe - SanDisk | 256 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo ThinkBook 15-IIL (Lenovo ThinkBook 15) | Lenovo IdeaPad S540-14API (Lenovo IdeaPad S540) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | AMD Radeon Vega 8 |
|---|---|---|
| Camera | Yes - 720p | Yes - 720p |
| Resolution | - | 1 Megapixel |
| Camera Features | ThinkShutter camera privacy | Privacy shutter |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3287 | - |
| Compliant Standards | High Definition Audio, Dolby Audio | High Definition Audio, Dolby Audio |
| COMMUNICATIONS | Lenovo ThinkBook 15-IIL (Lenovo ThinkBook 15) | Lenovo IdeaPad S540-14API (Lenovo IdeaPad S540) |
|---|
| Wireless | Bluetooth 5.0, 802.11a/b/g/n/ac/ax | 802.11a/b/g/n/ac, Bluetooth 4.2 |
|---|---|---|
| Wireless Controller | Intel Wi-Fi 6 AX 201 - M.2 Card | M.2 Card |
| Network Interface | Gigabit Ethernet | - |
| Features | - | Dual stream (2x2) |
| BATTERY | Lenovo ThinkBook 15-IIL (Lenovo ThinkBook 15) | Lenovo IdeaPad S540-14API (Lenovo IdeaPad S540) |
|---|
| Technology | 3-cell Lithium Ion | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 45 Wh | 45 Wh |
| Battery Life | Up to 9 hours | Up to 9 hours |
| AC ADAPTER | Lenovo ThinkBook 15-IIL (Lenovo ThinkBook 15) | Lenovo IdeaPad S540-14API (Lenovo IdeaPad S540) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 20 V, 3.25 A | 65 Watt |
| INPUT | Lenovo ThinkBook 15-IIL (Lenovo ThinkBook 15) | Lenovo IdeaPad S540-14API (Lenovo IdeaPad S540) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | - | Yes |
| Features | Spill-resistant, multi-touch touchpad, buttonless touchpad | Multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkBook 15-IIL (Lenovo ThinkBook 15) | Lenovo IdeaPad S540-14API (Lenovo IdeaPad S540) |
|---|
| Interfaces | USB 2.0 USB 3.2 Gen 1 (Always On) USB 3.2 Gen 1 USB-C 3.2 Gen 1 USB-C 3.2 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery) HDMI Headphone/microphone combo jack |
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) | 4 in 1 (MultiMediaCard, microSD, microSDHC, microSDXC) |
| SOFTWARE | Lenovo ThinkBook 15-IIL (Lenovo ThinkBook 15) | Lenovo IdeaPad S540-14API (Lenovo IdeaPad S540) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition - English | Windows 10 Home 64-bit Edition - English |
|---|---|---|
| Software Included | - | Microsoft Office (30 days trial) |
| MISCELLANEOUS | Lenovo ThinkBook 15-IIL (Lenovo ThinkBook 15) | Lenovo IdeaPad S540-14API (Lenovo IdeaPad S540) |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|---|---|
| Security | Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| 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 | Administrator password, power-on password, RapidCharge |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3 | RoHS, Energy-Related Products (ErP) Lot 3 |
| SAR Value | - | 0.58 W/kg (body), 0.58 W/kg (limb) |
| ENERGY STAR Certified | Yes | Yes |
| EPEAT Compliant | EPEAT Silver | - |
| Manufacturer Warranty | - | Limited warranty - 1 year - pick-up and return |
| Model Number | IIL 20SM | 14API 81NH |
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