| Attribute |
DELL Inspiron 5566 (I15-5566-N50P) × | 
DELL Inspiron 3576 (B566108WIN9) × |
| General | | |
| Model | DELL Inspiron 5566 | DELL Inspiron 3576 |
| Product code | I15-5566-N50P | B566108WIN9 |
| Design | | |
| Product colour | Black | Black |
| Form factor | Clamshell | Clamshell |
| Brand | DELL | DELL |
| Family | Inspiron | Inspiron |
| Series | 5000 | 3000 |
| Model name | 5566 | 3576 |
| Part number | I15-5566-N50P | B566108WIN9 |
| Release year (year) | 2018 | 2019 |
| Processor | | |
| Processor manufacturer | - | Intel |
| Processor family | 7th gen Intel Core i7 | 7th gen Intel Core i3 |
| Processor frequency (GHz) | 2.7 | 2.3 |
| Processor boost frequency (GHz) | 3.5 | - |
| Processor model | i7-7500U | i3-7020U |
| 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 |
| Maximum internal memory (GB) | 16 | 12 |
| Internal memory (GB) | 8 | 4 |
| Display | | |
| Display diagonal (inch) | 15.6 | 15.6 |
| HD type | HD | Full HD |
| LED backlight | + | + |
| Touchscreen | - | - |
| Dual-screen | - | - |
| Display resolution | 1366 x 768 pixels | 1920 x 1080 pixels |
| Graphics | | |
| On-board graphics adapter | + | + |
| Discrete graphics adapter model | - | AMD Radeon 520 |
| 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) | 1,000 | 1,000 |
| Card reader integrated | + | + |
| HDD capacity (GB) | 1,000 | 1,000 |
| Storage media | HDD | HDD |
| Optical drive | - | + |
| Networking | | |
| Bluetooth | + | + |
| Ethernet LAN | + | + |
| Ethernet LAN data rates (Mbit/s) | | |
| Wi-Fi | + | + |
| Ports and interfaces | | |
| USB 3.x Type-A ports | 1 | 2 |
| Combo headphone/mic port | + | + |
| USB 2.0 ports | 2 | 1 |
| HDMI ports quantity | 1 | 1 |
| Ethernet LAN (RJ-45) ports | 1 | 1 |
| Audio | | |
| Speaker power (W) | 2 | 2 |
| Audio chip | Realtek ALC3246 | Realtek ALC3204 |
| Built-in microphone | + | + |
| Camera | | |
| Front camera | + | + |
| Front camera resolution (numeric) (MPixel) | 0.9 | 0.9 |
| Front camera HD type | - | HD |
| Front camera resolution (pixels) | 1280 x 720 | 1280 x 720 |
| Keyboard | | |
| Numeric keypad | + | + |
| Full-size keyboard | + | + |
| 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) | 40 | 40 |
| Weight and dimensions | | |
| Weight (kg) | 2.36 | 2.13 |
| Height (mm) | 23.8 | 23.6 |
| Depth (mm) | 260.4 | 260.3 |
| Width (mm) | 380 | 380 |
| Power | | |
| AC adapter power (W) | 45 | 65 |
| Security | | |
| Cable lock slot | + | + |