On this page we compare specs Lenovo IdeaPad S540 81QX0005US with other notebooks, we compare screens and performance, the amount of RAM and hard drive memory, external dimensions, battery capacity and the availability of external ports.
| Processor | Lenovo IdeaPad S540 81QX0005US | |
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| Processor manufacturer | Intel | |
| Processor model | i7-8565U | |
| Processor socket | BGA 1528 | |
| Processor threads | 8 | |
| Processor cores | 4 | |
| Processor codename | Whiskey Lake | |
| Processor family | 8th gen Intel Core i7 | |
| Processor frequency | 1.8 GHz | |
| Motherboard chipset | Intel SoC | |
| Processor boost frequency | 4.6 GHz | |
| Processor cache | 8 MB | |
| Thermal Design Power (TDP) | 15 W | |
| Software | Lenovo IdeaPad S540 81QX0005US | other notebooks |
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| Operating system installed | Windows 10 Home | |
| Operating system architecture | 64-bit | |
| Display & Graphics | Lenovo IdeaPad S540 81QX0005US | other notebooks |
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| Panel type | IPS | |
| Display diagonal | 14 inch | |
| Display resolution | 1920 x 1080 pixels | |
| Dual-screen | No | |
| HD type | Full HD | |
| 3D | No | |
| LED backlight | Yes | |
| Touchscreen | No | |
| Maximum on-board graphics adapter memory | 32 GB | |
| On-board graphics adapter | Yes | |
| On-board graphics adapter base frequency | 300 MHz | |
| On-board graphics adapter DirectX version | 12.0 | |
| On-board graphics adapter dynamic frequency (max) | 1150 MHz | |
| On-board graphics adapter family | Intel UHD Graphics | |
| On-board graphics adapter model | Intel UHD Graphics | |
| On-board graphics adapter OpenGL | 4.5 | |
| Memory | Lenovo IdeaPad S540 81QX0005US | other notebooks |
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| Internal memory | 8 GB | |
| Maximum internal memory | 12 GB | |
| Memory clock speed | 2400 MHz | |
| Memory form factor | On-board SO-DIMM | |
| Memory slots | 1x SO-DIMM | |
| Internal memory type | DDR4-SDRAM | |
| Storage | Lenovo IdeaPad S540 81QX0005US | other notebooks |
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| SSD capacity | 512 GB | |
| Storage media | SSD | |
| Number of SSDs installed | 1 | |
| Total SSDs capacity | 512 GB | |
| Total storage capacity | 512 GB | |
| Optical drive type | No | |
| Card reader integrated | Yes | |
| Compatible memory cards | MMC, SD, SDHC, SDXC | |
| Network & Communication | Lenovo IdeaPad S540 81QX0005US | other notebooks |
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| Antenna type | 2x2 | |
| Bluetooth | Yes | |
| Bluetooth version | 4.2 | |
| Ethernet LAN | No | |
| Wi-Fi | Yes | |
| Wi-Fi standards | 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) | |
| Input Devices | Lenovo IdeaPad S540 81QX0005US | other notebooks |
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| Keyboard backlit | Yes | |
| Numeric keypad | No | |
| Pointing device | Touchpad | |
| Windows keys | Yes | |
| Audio | Lenovo IdeaPad S540 81QX0005US | other notebooks |
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| Audio system | Dolby Audio | |
| Built-in microphone | Yes | |
| Number of speakers | 2 | |
| Number of microphones | 2 | |
| Speaker power | 2 W | |
| Built-in Devices | Lenovo IdeaPad S540 81QX0005US | other notebooks |
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| Front camera | Yes | |
| Front camera HD type | HD | |
| Front camera resolution | 1 MP | |
| Front camera signal format | 720p | |
| Power | Lenovo IdeaPad S540 81QX0005US | other notebooks |
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| AC adapter frequency | 50 - 60 Hz | |
| AC adapter input voltage | 100 - 240 V | |
| Security | Lenovo IdeaPad S540 81QX0005US | other notebooks |
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| Fingerprint reader | Yes | |
| Password protection | Yes | |
| Trusted Platform Module (TPM) | Yes | |
| Design | Lenovo IdeaPad S540 81QX0005US | other notebooks |
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| Brand | Lenovo | |
| Family | IdeaPad | |
| Series | S | |
| Model name | S540 | |
| Part Number | 81QX0005US | |
| Product type | Notebook | |
| Form factor | Clamshell | |
| Product colour | Grey | |
| EAN/UPC code | 0193386452263, 193386452263 | |
| Release Date | 02 April 2019 | |
| Battery Information | Lenovo IdeaPad S540 81QX0005US | other notebooks |
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| Battery type | Lithium-Ion (Li-Ion) | |
