| Attribute |
Toshiba Tecra Z50-D-122 (PT581E-0D1005GR) × | 
Lenovo ThinkPad P51s (20HCA001AU) × |
| General | | |
| Model | Toshiba Tecra Z50-D-122 | Lenovo ThinkPad P51s |
| Product code | PT581E-0D1005GR | 20HCA001AU |
| Design | | |
| Form factor | Clamshell | Clamshell |
| Brand | Toshiba | Lenovo |
| Family | Tecra | ThinkPad |
| Series | - | P |
| Model name | Z50-D-122 | P51s |
| Part number | PT581E-0D1005GR | 20HCA001AU |
| Release year (year) | 2018 | 2017 |
| Processor | | |
| Processor family | 7th gen Intel Core i7 | 7th gen Intel Core i7 |
| Processor frequency (GHz) | 2.7 | 2.7 |
| Processor boost frequency (GHz) | 3.5 | 3.5 |
| Processor model | i7-7500U | i7-7500U |
| Processor cores | 2 | 2 |
| Processor threads | 4 | 4 |
| Processor lithography (Nm) | 14 | 14 |
| Processor socket | BGA 1356 | BGA 1356 |
| Processor cache (MB) | 4 | 4 |
| Memory | | |
| Internal memory type | DDR4-SDRAM | DDR4-SDRAM |
| Maximum internal memory (GB) | 16 | 32 |
| Memory clock speed (MHz) | 2,133 | 2,133 |
| Internal memory (GB) | 8 | 16 |
| 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 Quadro M520M |
| Discrete graphics memory type | - | GDDR5 |
| 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) | 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
| - 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 | + | + |
| Bluetooth version | 4.2 | - |
| Ports and interfaces | | |
| USB 3.x Type-A ports | - | 3 |
| USB 3.x Type-C ports | - | 1 |
| Combo headphone/mic port | + | + |
| Docking connector | + | + |
| USB Sleep-and-Charge | - | + |
| DVI port | - | - |
| HDMI ports quantity | 1 | 1 |
| Ethernet LAN (RJ-45) ports | 1 | 1 |
| Audio | | |
| Speaker power (W) | - | 2 |
| Built-in microphone | + | + |
| Camera | | |
| Front camera | + | + |
| Front camera resolution (numeric) (MPixel) | 2 | - |
| Front camera resolution (pixels) | 1920 x 1080 | - |
| Keyboard | | |
| Numeric keypad | + | + |
| Pointing device | - | ThinkPad UltraNav |
| Software | | |
| Operating system installed | Windows 10 Pro | Windows 10 Home |
| Operating system architecture (bit) | 64 | 64 |
| Weight and dimensions | | |
| Weight (kg) | 2 | - |
| Height (mm) | 23.4 | - |
| Depth (mm) | 258 | 252.8 |
| Width (mm) | 379 | 365.8 |
| Security | | |
| Cable lock slot | + | + |
| Fingerprint reader | + | - |
| Trusted platform module (TPM) | + | - |