| Processor | Sony VAIO VAIO VGN-FZ31J VGN-FZ31J | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Processor model | T7250 | i5-6200U |
| Processor series | Intel Core 2 Duo T7000 series | Intel Core i5-6200 series |
| Processor socket | Socket 478 | LGA 1356 (Socket B2) |
| Processor threads | 2 | 4 |
| Processor cores | 2 | 2 |
| Processor codename | Merom | Skylake |
| Processor family | Intel Core2 Duo | 6th gen Intel Core i5 |
| Processor frequency | 2 GHz | 2.3 GHz |
| Motherboard chipset | Intel PM965 Express | |
| Processor boost frequency | | 2.8 GHz |
| Processor cache | 2 MB | 3 MB |
| Processor front side bus | 800 MHz | |
| Thermal Design Power (TDP) | 35 W | 15 W |
| Software | Sony VAIO VAIO VGN-FZ31J VGN-FZ31J | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Operating system installed | Windows Vista Home Premium | Windows 10 Pro |
| Operating system architecture | | 64-bit |
| Display & Graphics | Sony VAIO VAIO VGN-FZ31J VGN-FZ31J | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Panel type | LCD | IPS |
| Aspect ratio | 16:10 | 16:9 |
| Display diagonal | 15.4 inch | 15.6 inch |
| Display resolution | 1280 x 800 pixels | 1920 x 1080 pixels |
| Discrete graphics adapter | Yes | No |
| HD type | | Full HD |
| Discrete graphics adapter model | NVIDIA GeForce 8600M GS | Not available |
| LED backlight | | Yes |
| Touchscreen | | No |
| Maximum graphics adapter memory | 1.023 GB | |
| Maximum on-board graphics adapter memory | | 1.74 GB |
| Number of displays supported | | 3 |
| On-board graphics adapter | | Yes |
| On-board graphics adapter base frequency | | 300 MHz |
| On-board graphics adapter dynamic frequency (max) | | 1000 MHz |
| On-board graphics adapter family | | Intel HD Graphics |
| On-board graphics adapter model | | Intel HD Graphics 520 |
| On-board graphics adapter OpenGL | | 4.4 |
| Memory | Sony VAIO VAIO VGN-FZ31J VGN-FZ31J | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Internal memory | 2 GB | 8 GB |
| Maximum internal memory | 4 GB | 16 GB |
| Memory clock speed | 667 MHz | 1600 MHz |
| Memory layout (slots x size) | 2 x 1 GB | 1 x 8 GB |
| Internal memory type | DDR2-SDRAM | DDR3L-SDRAM |
| Memory slots | | 2x SO-DIMM |
| Storage | Sony VAIO VAIO VGN-FZ31J VGN-FZ31J | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| HDD interface | Serial ATA | |
| HDD speed | 5400 RPM | |
| Total storage capacity | 250 GB | 256 GB |
| Card reader integrated | Yes | Yes |
| Compatible memory cards | SD | MMC, SD, SDHC, SDXC |
| SSD capacity | | 256 GB |
| Storage media | | SSD |
| Number of SSDs installed | | 1 |
| Optical drive type | | DVD Super Multi DL |
| Network & Communication | Sony VAIO VAIO VGN-FZ31J VGN-FZ31J | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Bluetooth | Yes | Yes |
| Bluetooth version | 2.0 EDR | 4.1 |
| Networking features | Fast Ethernet, WLAN | |
| Networking type | Ethernet, Fastehternet, Wi-Fi 802.11a/b/g/n | |
| 3G | | No |
| 4G | | No |
| Ethernet LAN | | Yes |
| Wi-Fi | | Yes |
| Wi-Fi standards | | IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n |
| Interfaces/Ports | Sony VAIO VAIO VGN-FZ31J VGN-FZ31J | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| HDMI ports quantity | 1 | 1 |
| Infrared data port | No | |
| Internal modem | Yes | |
| TV-in port | No | |
| Wireless technology | IEEE 802.11a/b/g/ draft n | |
| 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 |
| DVI port | No | |
| Ethernet LAN (RJ-45) ports | 1 | 1 |
| ExpressCard slot | Yes | |
| Firewire (IEEE 1394) ports | 1 | |
| Microphone in | Yes | Yes |
| Modem (RJ-11) ports | 1 | |
| S/PDIF out port | No | |
| SmartCard slot | No | |
| USB 2.0 | 3 | |
| Combo headphone/mic port | | Yes |
| DC-in jack | | Yes |
| USB 3.0 (3.1 Gen 1) Type-A | | 4 |
| USB Sleep-and-Charge | | 1 |
| Input Devices | Sony VAIO VAIO VGN-FZ31J VGN-FZ31J | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Keyboard layout | QWERTY | |
| Pointing device | Touchpad | Clickpad |
| Keyboard backlit | | Yes |
| Keyboard number of keys | | 102 |
| Numeric keypad | | Yes |
| Windows keys | | Yes |
| Audio | Sony VAIO VAIO VGN-FZ31J VGN-FZ31J | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Number of speakers | 2 | |
| Audio system | | DTS Studio Sound |
| Built-in microphone | | Yes |
| Built-in Devices | Sony VAIO VAIO VGN-FZ31J VGN-FZ31J | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Front camera resolution | 1.3 MP | |
| Video capturing speed | 30 fps | |
| Front camera | | Yes |
| Design | Sony VAIO VAIO VGN-FZ31J VGN-FZ31J | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Brand | Sony | Toshiba |
| Family | VAIO | Tecra |
| Series | FZ | |
| Model name | VAIO VGN-FZ31J | Z50-C-143 |
| Part Number | VGN-FZ31J | PT571E-06H03QEN |
| Dimensions (WxDxH) | 355.8 x 254.4 x 24.9 mm | |
| Depth | 254.4 mm | 258 mm |
| Width | 355.8 mm | 379 mm |
| Height (rear) | 3.45 cm | |
| Height (front) | 2.49 cm | |
| Height | 24.9 mm | 23.2 mm |
| Weight | 2.8 kg | 2.2 kg |
| Release Date | 2008-03-20 | 2018-01-10 |
| Product type | | Notebook |
| Form factor | | Clamshell |
| Colour of product | | Metallic |
| Power | Sony VAIO VAIO VGN-FZ31J VGN-FZ31J | 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 |
| Security | Sony VAIO VAIO VGN-FZ31J VGN-FZ31J | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Cable lock slot | | Yes |
| Cable lock slot type | | Kensington |
| Fingerprint reader | | Yes |
| Battery Information | Sony VAIO VAIO VGN-FZ31J VGN-FZ31J | Toshiba Tecra Z50-C-143 PT571E-06H03QEN |
| Battery type | | Lithium-Ion (Li-Ion) |
| Battery life | | 8 h |
| Number of battery cells | | 4 |
