When you compare the DELL Precision 5520 to the Lenovo ThinkPad T470 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 | Lenovo ThinkPad T470 | |
|---|---|---|
| Design | ||
| Brand | Dell | Lenovo | 
| Family | Precision | ThinkPad | 
| Series | Precision 5000 | ThinkPad T | 
| Manufacturer ID | X1C30 | 20HES7PE00 | 
| Operating System | Windows 7 Professional | |
| Dimensions | 16.8 x 235.3 x 357 mm | 19.9 x 232.5 x 336.6 mm | 
| Weight | 2 kg | |
| Performance | ||
| Processor | Intel Xeon E3 v5 E3-1505MV5 | |
| Processor Cores | 2.8 to 3.7 GHz 4 Core | |
| L3 Cache | 8 MB | |
| Graphics Card Type | Dedicated | |
| Graphics Card | NVIDIA Quadro M1200 | |
| Memory Type | 2133 MHz DDR4-SDRAM | 2133 MHz DDR4-SDRAM | 
| Display | ||
| Panel Type | IGZO | |
| Screen Size | 15.6" | 14" | 
| Screen Resolution | 3840 x 2160 | |
| TouchScreen? | Capacitive | |
| Storage | ||
| SSD Slots | 1 | 1 | 
| Storage Installed | 512 GB | 256 GB | 
| Battery | ||
| Battery Chemistry | Lithium Polymer (LiPo) | |
| Ports & Peripherals | ||
| Build in Speakers | MaxxAudio Pro | |
| Built in Mic | Yes | Yes | 
| Media / Memory Card Slot | SD, SDHC, SDXC | MMC, SD, SDHC, SDXC | 
| Webcam | Yes | Yes | 
| Pointing Device | Touchpad | ThinkPad UltraNav | 
| Connections | ||
| WIFI | Wi-Fi 5 (802.11ac) | Wi-Fi 5 (802.11ac) | 
| Bluetooth | 4.2 | 4.1 | 
| Power | ||
| Power Supply | 130 W | |
| AC Input Power | 100 - 240 V | 100 - 240 V |