| Processor | HP ProBook 4540s B6M11EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Processor manufacturer | Intel | |
| Processor model | i5-2450M | i5-6200U |
| Processor series | Intel Core i5-2400 Mobile series | Intel Core i5-6200 series |
| Processor socket | | LGA 1356 (Socket B2) |
| Processor threads | 4 | 4 |
| Processor cores | 2 | 2 |
| Processor codename | Sandy Bridge | Skylake |
| Processor family | 2nd gen Intel Core i5 | 6th gen Intel Core i5 |
| Processor frequency | 2.5 GHz | 2.3 GHz |
| Number of processors supported | 1 | |
| Motherboard chipset | Intel HM76 Express | |
| Processor boost frequency | 3.1 GHz | 2.8 GHz |
| Processor cache | 3 MB | 3 MB |
| Thermal Design Power (TDP) | 35 W | 15 W |
| Software | HP ProBook 4540s B6M11EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Operating system installed | Windows 7 Professional | Windows 10 Pro |
| Bundled software | Microsoft Office Starter | |
| Operating system architecture | 64-bit | 64-bit |
| Display & Graphics | HP ProBook 4540s B6M11EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Panel type | | IPS |
| Aspect ratio | 16:9 | 16:9 |
| Display diagonal | 15.6 inch | 15.6 inch |
| Display number of colours | 16.78 million colors | |
| Display resolution | 1366 x 768 pixels | 1920 x 1080 pixels |
| Display surface | Matt | |
| HD type | HD | Full HD |
| 3D | No | |
| Maximum on-board graphics adapter memory | | 1.74 GB |
| LED backlight | Yes | Yes |
| Number of displays supported | | 3 |
| Touchscreen | No | No |
| Discrete graphics adapter | Yes | No |
| Discrete graphics adapter model | AMD Radeon HD 7650M | Not available |
| Discrete graphics memory type | GDDR3 | |
| Number of discrete graphics adapters | 1 | |
| On-board graphics adapter | Yes | Yes |
| On-board graphics adapter OpenGL | | 4.4 |
| On-board graphics adapter base frequency | 650 MHz | 300 MHz |
| On-board graphics adapter dynamic frequency (max) | 1300 MHz | 1000 MHz |
| On-board graphics adapter family | Intel HD Graphics | Intel HD Graphics |
| On-board graphics adapter model | Intel HD Graphics 3000 | Intel HD Graphics 520 |
| Graphics adapter family | AMD, Intel | |
| Memory | HP ProBook 4540s B6M11EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Maximum internal memory | | 16 GB |
| Internal memory | 4 GB | 8 GB |
| Memory clock speed | 1333 MHz | 1600 MHz |
| Memory layout (slots x size) | 1 x 4 GB | 1 x 8 GB |
| Memory slots | 2x SO-DIMM | 2x SO-DIMM |
| Internal memory type | DDR3-SDRAM | DDR3L-SDRAM |
| Storage | HP ProBook 4540s B6M11EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| SSD capacity | | 256 GB |
| Number of SSDs installed | | 1 |
| HDD capacity | 500 GB | |
| HDD interface | Serial ATA II | |
| HDD size | 2.5" | |
| HDD speed | 7200 RPM | |
| Storage media | HDD | SSD |
| Number of HDDs installed | 1 | |
| Total storage capacity | 500 GB | 256 GB |
| LightScribe | No | |
| Optical drive interface | SATA | |
| Optical drive type | DVD Super Multi DL | DVD Super Multi DL |
| Card reader integrated | Yes | Yes |
| Compatible memory cards | MMC, SD | MMC, SD, SDHC, SDXC |
| Network & Communication | HP ProBook 4540s B6M11EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| 4G | | No |
| 3G | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth version | 4.0 EDR | 4.1 |
| Cabling technology | 10/100/1000Base-T(X) | |
| Ethernet LAN | Yes | Yes |
| Wi-Fi | Yes | Yes |
| Wi-Fi standards | 802.11b, 802.11g, Wi-Fi 4 (802.11n) | IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n |
| Interfaces/Ports | HP ProBook 4540s B6M11EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Combo headphone/mic port | | Yes |
| DC-in jack | | Yes |
| Docking connector | | Yes |
| USB 3.0 (3.1 Gen 1) Type-A | | 4 |
| HDMI ports quantity | 1 | 1 |
| USB Sleep-and-Charge | | 1 |
| Infrared data port | No | |
| CardBus PCMCIA slot type | No | |
| Charging port type | DC-in jack | |
| Headphone connectivity | 3.5 mm | |
| Headphone outputs | 1 | 1 |
| VGA (D-Sub) ports | 1 | 1 |
| DVI port | No | |
| Ethernet LAN (RJ-45) ports | 1 | 1 |
| ExpressCard slot | No | |
| Microphone connectivity | 3.5 mm | |
| Microphone in | Yes | Yes |
| SmartCard slot | No | |
| USB 2.0 | 2 | |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A | 2 | |
| Built-in Devices | HP ProBook 4540s B6M11EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Front camera | | Yes |
| Input Devices | HP ProBook 4540s B6M11EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Keyboard backlit | | Yes |
| Keyboard number of keys | | 102 |
| Windows keys | | Yes |
| Full-size keyboard | Yes | |
| Numeric keypad | Yes | Yes |
| Pointing device | Touchpad | Clickpad |
| Spill resistant keyboard | Yes | |
| Audio | HP ProBook 4540s B6M11EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Audio system | SRS Premium Sound PRO | DTS Studio Sound |
| Built-in microphone | Yes | Yes |
| Built-in speaker(s) | Yes | |
| Number of speakers | 2 | |
| Power | HP ProBook 4540s B6M11EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| AC adapter output current | | 2.37 A |
| AC adapter frequency | 50/60 Hz | |
| AC adapter input voltage | 100 - 240 V | 100 - 240 V |
| AC adapter output voltage | 19 V | 19 V |
| AC adapter power | 90 W | |
| Power auto-sensing | Yes | |
| Security | HP ProBook 4540s B6M11EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Cable lock slot type | | Kensington |
| Fingerprint reader | | Yes |
| Cable lock slot | Yes | Yes |
| Password protection | Yes | |
| Design | HP ProBook 4540s B6M11EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Product type | | Notebook |
| Colour of product | | Metallic |
| Brand | HP | Toshiba |
| Family | ProBook | Tecra |
| Series | 4000 | |
| Model name | 4540s | Z50-C-143 |
| Part Number | B6M11EA | PT571E-06H03QEN |
| Form factor | Clamshell | Clamshell |
| Product colour | Silver | |
| EAN/UPC code | 0887111077578, 0887111077554, 0887111131249, 0887111077561, 0887111077547, 0887111077592, 0887111077585 | |
| Depth | 256 mm | 258 mm |
| Width | 375 mm | 379 mm |
| Height | 28 mm | 23.2 mm |
| Weight | 2.33 kg | 2.2 kg |
| Release Date | 2012-07-17 | 2018-01-10 |
| Battery Information | HP ProBook 4540s B6M11EA | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Battery capacity | 47 Wh | |
| Battery type | Lithium-Ion (Li-Ion) | Lithium-Ion (Li-Ion) |
| Battery life | 7 h | 8 h |
| Number of battery cells | 6 | 4 |
