When you compare the DELL Precision 5520 to the DELL Precision 3520 you can see which Laptop is better. Let's take a look of the comparison, and see which model of Laptop out ontop.
| DELL Precision 5520 | DELL Precision 3520 | |
|---|---|---|
| Design | ||
| Brand | Dell | Dell | 
| Family | Precision | Precision | 
| Series | Precision 5000 | Precision 3000 | 
| Manufacturer ID | X1C30 | XMWGY | 
| Operating System | Windows 7 Professional | Windows 10 Pro | 
| Dimensions | 16.8 x 235.3 x 357 mm | 24.3 x 251 x 376 mm | 
| Weight | 2 kg | 2.18 kg | 
| Performance | ||
| Processor | Intel Xeon E3 v5 E3-1505MV5 | 7th gen Intel Core i7 i7-7820HQ | 
| Processor Cores | 2.8 to 3.7 GHz 4 Core | 2.9 to 3.9 GHz 4 Core | 
| L3 Cache | 8 MB | 8 MB | 
| Graphics Card Type | Dedicated | Dedicated | 
| Graphics Card | NVIDIA Quadro M1200 | NVIDIA Quadro M620 | 
| Memory Type | 2133 MHz DDR4-SDRAM | 2400 MHz DDR4-SDRAM | 
| Display | ||
| Panel Type | IGZO | IPS | 
| Screen Size | 15.6" | 15.6" | 
| Screen Resolution | 3840 x 2160 | 1920 x 1080 | 
| TouchScreen? | Capacitive | No | 
| Storage | ||
| SSD Slots | 1 | 1 | 
| Storage Installed | 512 GB | 512 GB | 
| Battery | ||
| Battery Chemistry | Lithium Polymer (LiPo) | Lithium Polymer (LiPo) | 
| Ports & Peripherals | ||
| Build in Speakers | MaxxAudio Pro | MaxxAudio Pro | 
| Built in Mic | Yes | Yes | 
| Media / Memory Card Slot | SD, SDHC, SDXC | SD | 
| Webcam | Yes | Yes | 
| Pointing Device | Touchpad | Touchpad | 
| Connections | ||
| WIFI | Wi-Fi 5 (802.11ac) | Wi-Fi 5 (802.11ac) | 
| Bluetooth | 4.2 | 4.2 | 
| Power | ||
| Power Supply | 130 W | 130 W | 
| AC Input Power | 100 - 240 V | 100 - 240 V |