| Attribute |
DELL Precision 5520 (CGJPH) × | 
Lenovo IdeaPad 720S (81AC000XMX) × |
| General | | |
| Model | DELL Precision 5520 | Lenovo IdeaPad 720S |
| Product code | CGJPH | 81AC000XMX |
| Design | | |
| Form factor | Clamshell | Clamshell |
| Brand | DELL | Lenovo |
| Family | Precision | IdeaPad |
| Series | 5000 | 700 |
| Model name | 5520 | 720S |
| Part number | CGJPH | 81AC000XMX |
| Market positioning | Business | - |
| Release year (year) | 2018 | 2018 |
| Processor | | |
| Processor family | 7th gen Intel Core i7 | 7th gen Intel Core i7 |
| Processor frequency (GHz) | 2.9 | 2.8 |
| Processor boost frequency (GHz) | 3.9 | 3.8 |
| Processor model | i7-7820HQ | i7-7700HQ |
| Processor cores | 4 | 4 |
| Processor threads | 8 | 8 |
| Processor lithography (Nm) | 14 | 14 |
| Processor socket | BGA 1440 | - |
| Processor cache (MB) | 8 | 6 |
| Memory | | |
| Internal memory type | DDR4-SDRAM | DDR4-SDRAM |
| Maximum internal memory (GB) | 32 | 32 |
| Memory clock speed (MHz) | 2,400 | 2,400 |
| Internal memory (GB) | 16 | 8 |
| Display | | |
| Display diagonal (inch) | 15.6 | 15.6 |
| Panel type | IGZO | IPS |
| HD type | 4K Ultra HD | Full HD |
| LED backlight | + | + |
| Touchscreen | + | - |
| Display resolution | 3840 x 2160 pixels | 1920 x 1080 pixels |
| Graphics | | |
| On-board graphics adapter | + | + |
| Discrete graphics adapter model | NVIDIA Quadro M1200 | NVIDIA GeForce GTX 1050 Ti |
| Discrete graphics memory type | GDDR5 | GDDR5 |
| Discrete graphics adapter | + | + |
| Discrete graphics adapter memory (GB) | 4 | 4 |
| On-board graphics adapter base frequency (MHz) | 350 | 350 |
| Maximum on-board graphics adapter memory (GB) | 64 | 64 |
| On-board graphics adapter model | Intel HD Graphics 630 | Intel HD Graphics 630 |
| Storage | | |
| Total storage capacity (GB) | 512 | 512 |
| Number of SSDs installed | 1 | 1 |
| Card reader integrated | + | + |
| SSD form factor | M.2 | M.2 |
| Storage media | SSD | SSD |
| Optical drive | - | - |
| Networking | | |
| Wi-Fi standards | - ieee 802.11a
- ieee 802.11ac
- ieee 802.11b
- ieee 802.11g
- ieee 802.11n
| |
| Bluetooth | + | + |
| Ethernet LAN | - | - |
| Wi-Fi | + | + |
| 4g | - | - |
| 3g | - | - |
| Bluetooth version | 4.2 | 4.1 |
| Ports and interfaces | | |
| USB 3.x Type-A ports | 2 | 1 |
| USB 3.x Type-C ports | - | 1 |
| Combo headphone/mic port | + | + |
| HDMI ports quantity | 1 | - |
| Audio | | |
| Speaker power (W) | - | 2 |
| Built-in microphone | + | + |
| Camera | | |
| Front camera | + | + |
| Front camera resolution (numeric) (MPixel) | 0.9 | 1 |
| Front camera HD type | HD | - |
| Front camera resolution (pixels) | 1280 x 720 | - |
| Keyboard | | |
| Numeric keypad | - | + |
| Keyboard backlit | + | + |
| Full-size keyboard | + | - |
| Pointing device | Touchpad | Touchpad |
| Software | | |
| Operating system installed | Windows 10 Pro | Windows 10 Home |
| Operating system architecture (bit) | 64 | 64 |
| Battery | | |
| Battery capacity (watt-hours) (Wh) | 97 | 79 |
| Weight and dimensions | | |
| Weight (kg) | 1.78 | 1.9 |
| Height (mm) | 17 | 17.9 |
| Depth (mm) | 235 | 243.5 |
| Width (mm) | 357 | 358.8 |
| Power | | |
| AC adapter power (W) | 130 | 90 |
| Security | | |
| Cable lock slot | + | - |
| Fingerprint reader | - | + |
| Trusted platform module (TPM) | + | + |