| Attribute |
Lenovo ThinkPad T580 (20L9S0NJ00) × | 
DELL Inspiron 7579 (I7579-7595GRY) × |
| General | | |
| Model | Lenovo ThinkPad T580 | DELL Inspiron 7579 |
| Product code | 20L9S0NJ00 | I7579-7595GRY |
| Design | | |
| Form factor | Clamshell | Convertible (Folder) |
| Brand | Lenovo | DELL |
| Family | ThinkPad | Inspiron |
| Series | T | 7000 |
| Model name | T580 | 7579 |
| Part number | 20L9S0NJ00 | I7579-7595GRY |
| Market positioning | Business | - |
| Release year (year) | 2018 | 2017 |
| Processor | | |
| Processor family | 8th gen Intel Core i7 | 7th gen Intel Core i7 |
| Processor frequency (GHz) | 1.8 | 2.7 |
| Processor boost frequency (GHz) | 4 | 3.5 |
| Processor model | i7-8550U | i7-7500U |
| Processor cores | 4 | 2 |
| Processor threads | 8 | 4 |
| Processor lithography (Nm) | 14 | 14 |
| Processor socket | BGA 1356 | BGA 1356 |
| Processor cache (MB) | 8 | 4 |
| Memory | | |
| Internal memory type | DDR4-SDRAM | DDR4-SDRAM |
| Maximum internal memory (GB) | 32 | 16 |
| Internal memory (GB) | 8 | 12 |
| Display | | |
| Display diagonal (inch) | 15.6 | 15.6 |
| Panel type | IPS | - |
| HD type | - | Full HD |
| LED backlight | + | + |
| Touchscreen | - | + |
| Display resolution | - | 1920 x 1080 pixels |
| Graphics | | |
| On-board graphics adapter | + | + |
| Discrete graphics adapter | - | - |
| 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 HD Graphics 620 |
| Storage | | |
| Total storage capacity (GB) | 512 | 512 |
| Number of SSDs installed | 1 | 1 |
| Card reader integrated | + | + |
| 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 | + | - |
| Ethernet LAN data rates (Mbit/s) | | - |
| Wi-Fi | + | + |
| 4g | - | - |
| 3g | - | - |
| Bluetooth version | 4.1 | - |
| Ports and interfaces | | |
| USB 3.x Type-A ports | 2 | 1 |
| USB 3.x Type-C ports | 1 | 1 |
| Combo headphone/mic port | + | + |
| USB 2.0 ports | - | 1 |
| Docking connector | - | - |
| USB Sleep-and-Charge | + | + |
| DVI port | - | - |
| HDMI ports quantity | 1 | 1 |
| Ethernet LAN (RJ-45) ports | 1 | - |
| Audio | | |
| Speaker power (W) | 2 | 2 |
| Audio chip | Realtek ALC3287 | Realtek ALC3253 |
| Built-in microphone | + | + |
| Camera | | |
| Front camera | + | + |
| Front camera resolution (numeric) (MPixel) | - | 0.9 |
| Front camera HD type | HD | - |
| Front camera resolution (pixels) | - | 1280 x 720 |
| Keyboard | | |
| Numeric keypad | + | - |
| Keyboard backlit | - | + |
| Full-size keyboard | - | + |
| Pointing device | ThinkPad UltraNav | Touchpad |
| Software | | |
| Operating system installed | Windows 10 Pro | Windows 10 Home |
| Operating system architecture (bit) | 64 | 64 |
| Weight and dimensions | | |
| Weight (kg) | 1.95 | 2.18 |
| Height (mm) | - | 18.9 |
| Depth (mm) | 252.8 | 252.5 |
| Width (mm) | 365.8 | 378.9 |
| Security | | |
| Cable lock slot | + | + |