| Attribute |
Lenovo ThinkPad P51s (20HCS0P700) × | 
Acer Aspire A515-51G-31HT (NX.GVNET.001) × |
| General | | |
| Model | Lenovo ThinkPad P51s | Acer Aspire A515-51G-31HT |
| Product code | 20HCS0P700 | NX.GVNET.001 |
| Design | | |
| Product colour | Black | - |
| Form factor | Clamshell | Clamshell |
| Brand | Lenovo | Acer |
| Family | ThinkPad | Aspire |
| Series | P | 5 |
| Model name | P51s | A515-51G-31HT |
| Part number | 20HCS0P700 | NX.GVNET.001 |
| Release year (year) | 2018 | 2018 |
| Processor | | |
| Processor family | 7th gen Intel Core i7 | 6th gen Intel Core i3 |
| Processor frequency (GHz) | 2.8 | 2 |
| Processor boost frequency (GHz) | 3.9 | - |
| Processor model | i7-7600U | i3-6006U |
| 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 |
| Internal memory (GB) | 16 | 4 |
| Display | | |
| Display diagonal (inch) | 15.6 | 15.6 |
| HD type | - | HD |
| LED backlight | + | + |
| Touchscreen | - | - |
| Display resolution | 1920 x 1080 pixels | 1366 x 768 pixels |
| Graphics | | |
| On-board graphics adapter | + | + |
| Discrete graphics adapter model | NVIDIA Quadro M520M | NVIDIA GeForce MX130 |
| Discrete graphics memory type | GDDR5 | GDDR5 |
| Discrete graphics adapter | + | + |
| Discrete graphics adapter memory (GB) | 2 | 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 520 |
| Storage | | |
| Total storage capacity (GB) | 512 | 500 |
| Card reader integrated | + | + |
| Storage media | SSD | HDD |
| Optical drive | - | - |
| Networking | | |
| Wi-Fi standards | | |
| Bluetooth | + | + |
| Ethernet LAN | + | + |
| Ethernet LAN data rates (Mbit/s) | | |
| Wi-Fi | + | + |
| 4g | - | - |
| 3g | - | - |
| Bluetooth version | - | 4.0 |
| Ports and interfaces | | |
| USB 3.x Type-A ports | 3 | 1 |
| USB 3.x Type-C ports | 1 | 1 |
| Combo headphone/mic port | + | + |
| USB 2.0 ports | - | 2 |
| 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 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 |
| Battery | | |
| Battery life (max) (h) | 13.8 | 7 |
| Weight and dimensions | | |
| Weight (kg) | 1.99 | 2.2 |
| Height (mm) | - | 21.6 |
| Depth (mm) | 252.8 | 263 |
| Width (mm) | 365.8 | 381.6 |
| Power | | |
| AC adapter power (W) | 65 | 65 |
| Security | | |
| Cable lock slot | + | - |
| Trusted platform module (TPM) | + | - |