Side by side comparison and review of Lenovo IdeaPad S540-13API (81XC) and Lenovo ThinkBook 16 G6 IRL (21KH). 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 IdeaPad S540-13API (81XC) based on its technical characteristics, features, user experience, expert reviews and price level.
slim, lightweight design
sharp, vibrant display
fast processing speed
good battery life
quiet operation
limited port selection
no optical drive
average graphics performance
higher price point
Advantages and disadvantages of Lenovo ThinkBook 16 G6 IRL (21KH) based on its technical characteristics, features, user experience, expert reviews and price level.
powerful intel processor
high-resolution display
solid build quality
good battery life
fast ssd storage
heavier than competitors
limited color options
noisy under load
expensive base model
| DESIGN AND DIMENSIONS | Lenovo IdeaPad S540-13API (81XC) | Lenovo ThinkBook 16 G6 IRL (21KH) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 29.69 cm x 20.86 cm x 1.595 cm | 35.6 cm x 25.35 cm x 1.75 cm |
| Weight | 1.25 kg | 1.7 kg |
| Case Material | Aluminum, glass | Aluminium (top), polycarbonate ABS (bottom) |
| Colour | Light silver | Dual tone arctic grey |
| DISPLAY | Lenovo IdeaPad S540-13API (81XC) | Lenovo ThinkBook 16 G6 IRL (21KH) |
|---|
| Screen Size (Type) | 13.3" - IPS | 16" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 2560 x 1600 (WQHD) | 1920 x 1200 (WUXGA) |
| V-Sync Rate at Max Res. | - | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | 300 cd/m² | 300 cd/m² |
| Colour Gamut | 100% sRGB, 72% NTSC | 45% NTSC |
| Features | Glossy, 72% NTSC colour gamut | Anti-glare, Low Blue Light technology |
| PROCESSOR | Lenovo IdeaPad S540-13API (81XC) | Lenovo ThinkBook 16 G6 IRL (21KH) |
|---|
| CPU | AMD Ryzen 7 3750H / 2.3 GHz | Intel Core i5 (13th Gen) 1335U / 1.3 GHz |
|---|---|---|
| Max Turbo Speed | 4 GHz | 4.6 GHz |
| Number of Cores | Quad-Core | 10-core |
| Cache | L3 - 4 MB | 12 MB |
| 64-bit Computing | Yes | - |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo IdeaPad S540-13API (81XC) | Lenovo ThinkBook 16 G6 IRL (21KH) |
|---|
| RAM | 8 GB (provided memory is soldered) | 8 GB (1 x 8 GB) |
|---|---|---|
| Max RAM Supported | - | 64 GB |
| RAM Type | DDR4 SDRAM | DDR5 SDRAM |
| Speed | 2400 MHz | 5200 MHz |
| Rated Speed | 2400 MHz | 5200 MHz |
| Form Factor | - | SO-DIMM 262-pin |
| Slots Qty | - | 2 |
| Empty Slots | - | 1 |
| STORAGE | Lenovo IdeaPad S540-13API (81XC) | Lenovo ThinkBook 16 G6 IRL (21KH) |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe) | 256 GB SSD M.2 2242 PCIe 4.0 x4 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo IdeaPad S540-13API (81XC) | Lenovo ThinkBook 16 G6 IRL (21KH) |
|---|
| Graphics Processor (GPU) | AMD Radeon RX Vega 10 | Intel Iris Xe Graphics |
|---|---|---|
| Max Monitors Supported | - | 3 external monitor(s) |
| Video System Features | - | Functions as Intel UHD graphics (for single-channel memory) |
| Camera | Yes - 720p | Yes - 1080p |
| Resolution | 1 Megapixel | - |
| Camera Features | IR camera, fixed focus, ToF sensor | Privacy shutter, Windows Hello, fixed focus, hybrid FHD/IR camera |
| 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 |
| Audio Features | - | Input: noise-cancellation technology |
| COMMUNICATIONS | Lenovo IdeaPad S540-13API (81XC) | Lenovo ThinkBook 16 G6 IRL (21KH) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | 802.11a/b/g/n/ac/ax, Bluetooth 5.1 |
|---|---|---|
| Wireless Controller | M.2 Card | M.2 Card |
| Network Interface | - | Gigabit Ethernet |
| Ethernet Controller | - | Intel I219-V |
| Features | Dual stream (2x2) | Wake-on-LAN (WOL), dual stream (2x2) |
| BATTERY | Lenovo IdeaPad S540-13API (81XC) | Lenovo ThinkBook 16 G6 IRL (21KH) |
|---|
| Technology | Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 56 Wh | 45 Wh |
| Battery Life | Up to 14.7 hours | - |
| AC ADAPTER | Lenovo IdeaPad S540-13API (81XC) | Lenovo ThinkBook 16 G6 IRL (21KH) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 65 Watt |
| INPUT | Lenovo IdeaPad S540-13API (81XC) | Lenovo ThinkBook 16 G6 IRL (21KH) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | Yes | Yes |
| Features | Multi-touch touchpad, buttonless touchpad | Spill-resistant, multi-touch touchpad, buttonless touchpad, precision touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo IdeaPad S540-13API (81XC) | Lenovo ThinkBook 16 G6 IRL (21KH) |
|---|
| Slots | - | 2 x M.2 (PCI Express 4.0 x4) (1 free) |
|---|---|---|
| Interfaces | USB 3.1 Gen 1 (Always On) 2 x USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) (Power Delivery) Headphone/microphone combo jack |
USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) HDMI (4K support) LAN Headphone/microphone combo jack |
| Memory Card Reader | - | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
| SOFTWARE | Lenovo IdeaPad S540-13API (81XC) | Lenovo ThinkBook 16 G6 IRL (21KH) |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition - English | Windows 11 Pro - English |
|---|---|---|
| Software Included | Microsoft Office (30 days trial) | Microsoft Office (Trial) |
| MISCELLANEOUS | Lenovo IdeaPad S540-13API (81XC) | Lenovo ThinkBook 16 G6 IRL (21KH) |
|---|
| Included Accessories | Power adapter | USB-C power adapter |
|---|---|---|
| Security | Firmware Trusted Platform Module (TPM 2.0) Security Chip | Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Security Slot Type | - | Kensington nano security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | Administrator password, hard drive password, power-on password, RapidCharge | Administrator password, hard drive password, power-on password, MIL-STD-810H tested, Rapid Charge Pro, self-healing BIOS |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3 | RoHS, Energy-Related Products (ErP) Lot 6, FSC, Energy-Related Products (ErP) Lot 26, TCO Certified 9.0 |
| SAR Value | 0.599 W/kg (body), 0.599 W/kg (limb) | - |
| Specific Absorption Rate (SAR) | 0.599 W/kg (body) 0.599 W/kg (limb) |
- |
| Max Operating Temperature | - | 35 °C |
| Min Operating Temperature | - | 5 °C |
| Humidity Range Operating | - | 8 - 95% |
| Manufacturer Warranty | Limited warranty - 1 year - pick-up and return | Limited warranty - 1 year - pick-up and return |
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