| Processor | HP ProBook ProBook 4520s Notebook PC WD842EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Processor model | i3-350M | i5-6200U |
| Processor series | Intel Core i3-300 Mobile series | Intel Core i5-6200 series |
| Processor socket | BGA 1288 | LGA 1356 (Socket B2) |
| Processor threads | 4 | 4 |
| Processor cores | 2 | 2 |
| Processor codename | Arrandale | Skylake |
| Processor family | 3rd gen Intel Core i3 | 6th gen Intel Core i5 |
| Processor frequency | 2.26 GHz | 2.3 GHz |
| Motherboard chipset | Intel HM57 Express | |
| Processor boost frequency | | 2.8 GHz |
| Processor cache | 3 MB | 3 MB |
| Thermal Design Power (TDP) | 35 W | 15 W |
| Software | HP ProBook ProBook 4520s Notebook PC WD842EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Operating system installed | Windows 7 Professional | Windows 10 Pro |
| Operating system architecture | | 64-bit |
| Display & Graphics | HP ProBook ProBook 4520s Notebook PC WD842EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Aspect ratio | 16:9 | 16:9 |
| Display diagonal | 15.6 inch | 15.6 inch |
| Panel type | | IPS |
| Display resolution | 1366 x 768 pixels | 1920 x 1080 pixels |
| LED backlight | Yes | Yes |
| Discrete graphics adapter | Yes | No |
| Discrete graphics adapter model | Intel HD Graphics | Not available |
| HD type | | Full HD |
| On-board graphics adapter | Yes | Yes |
| On-board graphics adapter base frequency | 500 MHz | 300 MHz |
| Touchscreen | | No |
| On-board graphics adapter dynamic frequency (max) | 667 MHz | 1000 MHz |
| On-board graphics adapter family | Intel HD Graphics | Intel HD Graphics |
| On-board graphics adapter model | Intel HD Graphics | Intel HD Graphics 520 |
| Maximum on-board graphics adapter memory | | 1.74 GB |
| Graphics adapter family | Intel | |
| Number of displays supported | | 3 |
| On-board graphics adapter OpenGL | | 4.4 |
| Memory | HP ProBook ProBook 4520s Notebook PC WD842EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Internal memory | 3 GB | 8 GB |
| Maximum internal memory | 8 GB | 16 GB |
| Memory clock speed | 1333 MHz | 1600 MHz |
| Memory layout (slots x size) | 1 x 1 1 x 2 GB | 1 x 8 GB |
| Memory slots | 2x SO-DIMM | 2x SO-DIMM |
| Memory upgrade | 8 GB | |
| Internal memory type | | DDR3L-SDRAM |
| Storage | HP ProBook ProBook 4520s Notebook PC WD842EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| HDD interface | Serial ATA | |
| HDD speed | 7200 RPM | |
| Storage media | HDD | SSD |
| Number of HDDs installed | 1 | |
| Total HDDs capacity | 320 GB | |
| Total storage capacity | 320 GB | 256 GB |
| LightScribe | Yes | |
| SSD capacity | | 256 GB |
| Optical drive type | DVD Super Multi DL | DVD Super Multi DL |
| Card reader integrated | Yes | Yes |
| Number of SSDs installed | | 1 |
| Compatible memory cards | | MMC, SD, SDHC, SDXC |
| Network & Communication | HP ProBook ProBook 4520s Notebook PC WD842EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Bluetooth | Yes | Yes |
| Bluetooth version | 2.1 EDR | 4.1 |
| Networking features | Realtek Ethernet (10/100/1000 NIC) | |
| Wi-Fi | Yes | Yes |
| 3G | | No |
| 4G | | No |
| Ethernet LAN | | Yes |
| Wi-Fi standards | | IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n |
| Interfaces/Ports | HP ProBook ProBook 4520s Notebook PC WD842EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| HDMI ports quantity | 1 | 1 |
| Infrared data port | No | |
| Internal modem | No | |
| TV-in port | No | |
| Wireless technology | Atheros 802.11b/g/n; HP Integrated Module with Bluetooth 2.1 Wireless Technology | |
| CardBus PCMCIA slot type | No | |
| Charging port type | DC-in jack | |
| Headphone outputs | 1 | 1 |
| VGA (D-Sub) ports | 1 | 1 |
| Docking connector | No | Yes |
| Combo headphone/mic port | | Yes |
| DVI port | No | |
| DC-in jack | | Yes |
| eSATA ports quantity | 1 | |
| Ethernet LAN (RJ-45) ports | 1 | 1 |
| ExpressCard slot | Yes | |
| Microphone in | Yes | Yes |
| S/PDIF out port | No | |
| USB 3.0 (3.1 Gen 1) Type-A | | 4 |
| SmartCard slot | Yes | |
| USB Sleep-and-Charge | | 1 |
| TV out | No | |
| USB 2.0 | 3 | |
| Input Devices | HP ProBook ProBook 4520s Notebook PC WD842EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Keyboard backlit | | Yes |
| Keyboard number of keys | | 102 |
| Numeric keypad | | Yes |
| Pointing device | | Clickpad |
| Windows keys | | Yes |
| Audio | HP ProBook ProBook 4520s Notebook PC WD842EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Audio system | HD Audio | DTS Studio Sound |
| Number of speakers | 2 | |
| Built-in microphone | | Yes |
| Security | HP ProBook ProBook 4520s Notebook PC WD842EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Cable lock slot | Yes | Yes |
| Cable lock slot type | Kensington | Kensington |
| Fingerprint reader | | Yes |
| Design | HP ProBook ProBook 4520s Notebook PC WD842EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Brand | HP | Toshiba |
| Family | ProBook | Tecra |
| Series | 4000 | |
| Model name | ProBook 4520s Notebook PC | Z50-C-143 |
| Part Number | WD842EA | PT571E-06H03QEN |
| Product colour | Black | |
| EAN/UPC code | 0885631516430, 0885631060759, 0885631060773, 0885631360163, 0885631060766, 0885631360439, 0885631100288, 0885631135914, 0885631135624, 0885631060780, 0885631060704, 0885631360446 | |
| Dimensions (WxDxH) | 371.8 x 249.6 x 27.7 mm | |
| Depth | 249.6 mm | 258 mm |
| Width | 371.8 mm | 379 mm |
| Height (front) | 2.77 cm | |
| Weight | 2.39 kg | 2.2 kg |
| Release Date | 2010-06-01 | 2018-01-10 |
| Product type | | Notebook |
| Form factor | | Clamshell |
| Colour of product | | Metallic |
| Height | | 23.2 mm |
| Built-in Devices | HP ProBook ProBook 4520s Notebook PC WD842EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Front camera | | Yes |
| Power | HP ProBook ProBook 4520s Notebook PC WD842EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| AC adapter input voltage | | 100 - 240 V |
| AC adapter output current | | 2.37 A |
| AC adapter output voltage | | 19 V |
| Battery Information | HP ProBook ProBook 4520s Notebook PC WD842EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Battery type | 6-cell (47 WHr) Lithium-Ion Battery | Lithium-Ion (Li-Ion) |
| Number of battery cells | 6 | 4 |
| Battery life | | 8 h |
