| Attribute |
DELL Inspiron 7490 (7490-7070) × | 
Lenovo ThinkPad X1 Carbon (6th Gen) (20KGS03800) × |
| General | | |
| Model | DELL Inspiron 7490 | Lenovo ThinkPad X1 Carbon (6th Gen) |
| Product code | 7490-7070 | 20KGS03800 |
| Design | | |
| Product colour | Pink | Black |
| Form factor | Clamshell | Clamshell |
| Brand | DELL | Lenovo |
| Family | Inspiron | ThinkPad |
| Series | 7000 | X |
| Model name | 7490 | X1 Carbon (6th Gen) |
| Part number | 7490-7070 | 20KGS03800 |
| Release year (year) | 2019 | 2018 |
| Processor | | |
| Processor manufacturer | Intel | - |
| Processor family | 10th gen Intel Core i7 | 8th gen Intel Core i7 |
| Processor frequency (GHz) | 1.8 | 1.8 |
| Processor boost frequency (GHz) | 4.9 | 4 |
| Processor model | i7-10510U | i7-8550U |
| Processor cores | 4 | 4 |
| Processor threads | 8 | 8 |
| Processor lithography (Nm) | 14 | 14 |
| Processor socket | BGA 1528 | BGA 1356 |
| Processor cache (MB) | 8 | 8 |
| Memory | | |
| Internal memory type | LPDDR3-SDRAM | LPDDR3-SDRAM |
| Maximum internal memory (GB) | 16 | 16 |
| Memory clock speed (MHz) | 2,133 | 2,133 |
| Internal memory (GB) | 16 | 16 |
| Display | | |
| Display diagonal (inch) | 14 | 14 |
| 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 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 620 |
| Storage | | |
| Total storage capacity (GB) | 512 | 512 |
| Number of SSDs installed | 1 | 1 |
| SSD capacity (GB) | 512 | 512 |
| Card reader integrated | + | + |
| Storage media | SSD | SSD |
| Optical drive | - | - |
| Networking | | |
| Wi-Fi standards | - | |
| Bluetooth | + | + |
| Ethernet LAN | - | - |
| Wi-Fi | + | + |
| 4g | - | - |
| 3g | - | - |
| Bluetooth version | 5.0 | 4.1 |
| Ports and interfaces | | |
| USB 3.x Type-A ports | 2 | 2 |
| Combo headphone/mic port | + | + |
| USB Sleep-and-Charge | - | + |
| HDMI ports quantity | 1 | 1 |
| Audio | | |
| Speaker power (W) | - | 1 |
| Audio chip | Realtek ALC3204 | - |
| Built-in microphone | + | + |
| Camera | | |
| Front camera | + | + |
| Front camera resolution (numeric) (MPixel) | 0.9 | 1 |
| Front camera HD type | HD | HD |
| Front camera resolution (pixels) | 1280 x 720 | 1280 x 720 |
| Keyboard | | |
| Numeric keypad | - | - |
| Keyboard backlit | - | + |
| Pointing device | Touchpad | ThinkPad UltraNav |
| Software | | |
| Operating system installed | - | FreeDOS |
| Battery | | |
| Battery capacity (watt-hours) (Wh) | 52 | 57 |
| Weight and dimensions | | |
| Weight (kg) | 1.32 | 1.13 |
| Height (mm) | - | 15.9 |
| Depth (mm) | 205.9 | 217.1 |
| Width (mm) | 319.8 | 323.5 |
| Power | | |
| AC adapter power (W) | 65 | 65 |
| Security | | |
| Cable lock slot | - | + |
| Fingerprint reader | - | + |
| Trusted platform module (TPM) | - | + |