| Attribute |
DELL Inspiron 7490 (INS 14-7490-R1705S) × | 
DELL Inspiron 5391 (INS 13-5391-D1625S) × |
| General | | |
| Model | DELL Inspiron 7490 | DELL Inspiron 5391 |
| Product code | INS 14-7490-R1705S | INS 13-5391-D1625S |
| Design | | |
| Product colour | Silver | Platinum, Silver |
| Form factor | Clamshell | Clamshell |
| Brand | DELL | DELL |
| Family | Inspiron | Inspiron |
| Series | 7000 | 5000 |
| Model name | 7490 | 5391 |
| Part number | INS 14-7490-R1705S | INS 13-5391-D1625S |
| Release year (year) | 2019 | 2019 |
| Processor | | |
| Processor manufacturer | Intel | Intel |
| Processor family | 10th gen Intel Core i7 | 10th gen Intel Core i5 |
| Processor frequency (GHz) | 1.8 | 1.6 |
| Processor boost frequency (GHz) | 4.9 | 4.2 |
| Processor model | i7-10510U | i5-10210U |
| Processor cores | 4 | 4 |
| Processor threads | 8 | 8 |
| Processor lithography (Nm) | 14 | 14 |
| Processor socket | BGA 1528 | BGA 1528 |
| Processor cache (MB) | 8 | 6 |
| Memory | | |
| Internal memory type | LPDDR3-SDRAM | LPDDR3-SDRAM |
| Maximum internal memory (GB) | 8 | 8 |
| Memory clock speed (MHz) | 2,133 | 2,133 |
| Internal memory (GB) | 8 | 8 |
| Display | | |
| Display diagonal (inch) | 14 | 13.3 |
| Panel type | - | WVA |
| HD type | Full HD | Full HD |
| LED backlight | + | + |
| Touchscreen | - | - |
| Dual-screen | - | - |
| Display resolution | 1920 x 1080 pixels | 1920 x 1080 pixels |
| Graphics | | |
| On-board graphics adapter | + | + |
| Discrete graphics adapter model | - | NVIDIA GeForce MX250 |
| 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 UHD Graphics | Intel UHD Graphics |
| Storage | | |
| Total storage capacity (GB) | 512 | 512 |
| Number of SSDs installed | 1 | 1 |
| SSD capacity (GB) | 512 | 512 |
| Card reader integrated | + | + |
| SSD form factor | M.2 | M.2 |
| Storage media | SSD | SSD |
| Optical drive | - | - |
| Networking | | |
| Bluetooth | + | + |
| Ethernet LAN | - | - |
| Wi-Fi | + | + |
| 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 | 1 |
| Audio | | |
| Speaker power (W) | 2 | - |
| Audio chip | Realtek ALC3204 | Realtek ALC3204 |
| Built-in microphone | + | + |
| Camera | | |
| Front camera | + | + |
| Front camera resolution (numeric) (MPixel) | 0.9 | - |
| Front camera HD type | HD | HD |
| Front camera resolution (pixels) | 1280 x 720 | - |
| Keyboard | | |
| Numeric keypad | - | - |
| Keyboard backlit | - | + |
| Pointing device | Touchpad | Touchpad |
| Software | | |
| Operating system installed | Windows 10 Home | Windows 10 Home |
| Operating system architecture (bit) | 64 | 64 |
| Battery | | |
| Battery capacity (watt-hours) (Wh) | 52 | 45 |
| Weight and dimensions | | |
| Weight (kg) | 1.32 | 1.2 |
| Depth (mm) | 205.9 | 204.5 |
| Width (mm) | 319.8 | 307.6 |
| Power | | |
| AC adapter power (W) | 65 | 65 |