| Attribute |
Lenovo IdeaPad 520 + Backpack (81BF002TAX+BP) × | 
Lenovo IdeaPad 520 (81BF00CJIX) × |
| General | | |
| Model | Lenovo IdeaPad 520 + Backpack | Lenovo IdeaPad 520 |
| Product code | 81BF002TAX+BP | 81BF00CJIX |
| Design | | |
| Product colour | Gold | Black, Grey |
| Form factor | Clamshell | Clamshell |
| Brand | Lenovo | Lenovo |
| Family | IdeaPad | IdeaPad |
| Series | 500 | 500 |
| Model name | 520 + Backpack | 520 |
| Part number | 81BF002TAX+BP | 81BF00CJIX |
| Release year (year) | 2019 | 2018 |
| Processor | | |
| Processor manufacturer | Intel | - |
| Processor family | 8th gen Intel Core i7 | 8th gen Intel Core i7 |
| Processor frequency (GHz) | 1.8 | 1.8 |
| Processor boost frequency (GHz) | 4 | 4 |
| Processor model | i7-8550U | i7-8550U |
| Processor cores | 4 | 4 |
| Processor threads | 8 | 8 |
| Processor lithography (Nm) | 14 | 14 |
| Processor socket | BGA 1356 | BGA 1356 |
| Processor cache (MB) | 8 | 8 |
| Memory | | |
| Internal memory type | DDR4-SDRAM | DDR4-SDRAM |
| Maximum internal memory (GB) | 16 | 16 |
| Memory clock speed (MHz) | 2,133 | 2,133 |
| Internal memory (GB) | 16 | 8 |
| Display | | |
| Display diagonal (inch) | 15.6 | 15.6 |
| Panel type | IPS | IPS |
| HD type | Full HD | Full HD |
| LED backlight | + | + |
| Touchscreen | - | - |
| Display resolution | 1920 x 1080 pixels | 1920 x 1080 pixels |
| Graphics | | |
| On-board graphics adapter | + | + |
| Discrete graphics adapter model | NVIDIA GeForce MX150 | NVIDIA GeForce MX150 |
| Discrete graphics memory type | GDDR5 | GDDR5 |
| Discrete graphics adapter | + | + |
| Discrete graphics adapter memory (GB) | 4 | 4 |
| On-board graphics adapter base frequency (MHz) | 300 | 300 |
| Maximum on-board graphics adapter memory (GB) | 32 | 32 |
| On-board graphics adapter model | Intel UHD Graphics 620 | Intel UHD Graphics 620 |
| Storage | | |
| Total storage capacity (GB) | 1,128 | 1,128 |
| Number of SSDs installed | 1 | 1 |
| SSD capacity (GB) | 128 | 128 |
| Card reader integrated | + | + |
| HDD capacity (GB) | 1,000 | 1,000 |
| SSD form factor | - | 2.5" |
| Storage media | HDD+SSD | HDD |
| Optical drive | - | - |
| Networking | | |
| Wi-Fi standards | - 802.11a
- 802.11b
- 802.11g
- wi-fi 4 (802.11n)
- wi-fi 5 (802.11ac)
| - 802.11a
- 802.11b
- 802.11g
- wi-fi 4 (802.11n)
- wi-fi 5 (802.11ac)
|
| Bluetooth | + | + |
| Ethernet LAN | + | + |
| Ethernet LAN data rates (Mbit/s) | | |
| Wi-Fi | + | + |
| Bluetooth version | 4.1 | 4.1 |
| Ports and interfaces | | |
| USB 3.x Type-A ports | 2 | 2 |
| USB 3.x Type-C ports | 1 | 1 |
| Combo headphone/mic port | + | + |
| Docking connector | - | - |
| HDMI ports quantity | 1 | 1 |
| Ethernet LAN (RJ-45) ports | 1 | 1 |
| Audio | | |
| Speaker power (W) | 2 | 2 |
| Built-in microphone | + | + |
| Camera | | |
| Front camera | + | + |
| Front camera resolution (numeric) (MPixel) | 1 | 1 |
| Front camera HD type | - | HD |
| Front camera resolution (pixels) | 1280 x 720 | 1280 x 720 |
| Keyboard | | |
| Numeric keypad | + | + |
| Keyboard backlit | + | + |
| Full-size keyboard | - | + |
| Pointing device | Touchpad | Touchpad |
| Software | | |
| Operating system installed | Windows 10 Home | Windows 10 Home |
| Operating system architecture (bit) | 64 | 64 |
| Battery | | |
| Battery capacity (watt-hours) (Wh) | 35 | 30 |
| Battery life (max) (h) | 6 | 4 |
| Weight and dimensions | | |
| Weight (kg) | 2.2 | 2.2 |
| Height (mm) | 22 | 22 |
| Depth (mm) | 260 | 260 |
| Width (mm) | 378 | 378 |
| Power | | |
| AC adapter power (W) | 65 | 65 |
| Security | | |
| Cable lock slot | + | + |
| Fingerprint reader | + | + |
| Trusted platform module (TPM) | - | - |