| Attribute |
Fujitsu LIFEBOOK AH557 (AH557-VB711) × | 
Lenovo IdeaPad 520 (80YL005MRK) × |
| General | | |
| Model | Fujitsu LIFEBOOK AH557 | Lenovo IdeaPad 520 |
| Product code | AH557-VB711 | 80YL005MRK |
| Design | | |
| Form factor | Clamshell | Clamshell |
| Brand | Fujitsu | Lenovo |
| Family | LIFEBOOK | IdeaPad |
| Series | AH | 500 |
| Model name | AH557 | 520 |
| Part number | AH557-VB711 | 80YL005MRK |
| Release year (year) | 2017 | 2017 |
| Processor | | |
| Processor family | 7th gen Intel Core i7 | 7th gen Intel Core i5 |
| Processor frequency (GHz) | 2.7 | 2.5 |
| Processor boost frequency (GHz) | 3.5 | 3.1 |
| Processor model | i7-7500U | i5-7200U |
| Processor cores | 2 | 2 |
| Processor threads | 4 | 4 |
| Processor lithography (Nm) | 14 | 14 |
| Processor socket | BGA 1356 | BGA 1356 |
| Processor cache (MB) | 4 | 3 |
| Memory | | |
| Internal memory type | DDR4-SDRAM | DDR4-SDRAM |
| Maximum internal memory (GB) | 32 | 16 |
| Memory clock speed (MHz) | 2,133 | 2,133 |
| Internal memory (GB) | 8 | 6 |
| Display | | |
| Display diagonal (inch) | 15.6 | 15.6 |
| Panel type | - | 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 | AMD Radeon R7 M460 | - |
| Discrete graphics adapter | + | - |
| Discrete graphics adapter memory (GB) | 2 | - |
| On-board graphics adapter base frequency (MHz) | 300 | 300 |
| Maximum on-board graphics adapter memory (GB) | 32 | 32 |
| On-board graphics adapter model | Intel HD Graphics 620 | Intel HD Graphics 620 |
| Storage | | |
| Total storage capacity (GB) | 1,000 | 1,000 |
| Card reader integrated | + | + |
| Storage media | HDD | HDD |
| Optical drive | + | - |
| Networking | | |
| Wi-Fi standards | - ieee 802.11a
- ieee 802.11ac
- ieee 802.11b
- ieee 802.11g
- ieee 802.11n
| |
| Bluetooth | + | + |
| Ethernet LAN | + | + |
| Ethernet LAN data rates (Mbit/s) | | |
| Wi-Fi | + | + |
| 4g | - | - |
| 3g | - | - |
| Bluetooth version | 4.0 | 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 | + | - |
| USB 2.0 ports | 1 | - |
| DVI port | - | - |
| HDMI ports quantity | 1 | 1 |
| Ethernet LAN (RJ-45) ports | 1 | 1 |
| Audio | | |
| Speaker power (W) | - | 2 |
| Audio chip | Realtek ALC255 | - |
| Built-in microphone | + | - |
| Camera | | |
| Front camera | + | + |
| Keyboard | | |
| Numeric keypad | + | + |
| Keyboard backlit | - | + |
| Full-size keyboard | + | - |
| Pointing device | Touchpad | - |
| Software | | |
| Operating system installed | Windows 10 | Windows 10 Home |
| Operating system architecture (bit) | 64 | 64 |
| Battery | | |
| Battery capacity (watt-hours) (Wh) | 45 | 35 |
| Battery life (max) (h) | - | 5 |
| Weight and dimensions | | |
| Weight (kg) | 2.4 | 2.2 |
| Height (mm) | 26.4 | 22 |
| Depth (mm) | 256 | 260 |
| Width (mm) | 378 | 378 |
| Security | | |
| Cable lock slot | + | + |
| Fingerprint reader | - | + |
| Trusted platform module (TPM) | + | - |