The HP EliteBook 840 G3 is a laptop model from HP's EliteBook series. Here are some specifications for the HP EliteBook 840 G3 with 256GB storage and 8GB RAM:

Processor: It is equipped with an Intel Core i5 or i7 processor, depending on the configuration you choose. The specific model may vary, but it should be a 6th or 7th generation Intel Core processor.

Memory (RAM): The HP EliteBook 840 G3 typically comes with 8GB of DDR4 RAM. However, it's important to note that some configurations may offer different memory options, such as 4GB or 16GB.

Storage: The laptop you mentioned has 256GB of storage. It's likely to be a solid-state drive (SSD), which offers faster data access compared to traditional hard drives.

Display: The EliteBook 840 G3 usually features a 14-inch Full HD (1920x1080) display. Some models may also offer touch screen functionality, but it depends on the specific configuration you choose.

Graphics: The laptop utilizes integrated Intel HD Graphics, which are built into the processor. The exact model of the graphics chip will depend on the specific configuration.

Operating System: The EliteBook 840 G3 can come with different operating systems, such as Windows 10 Pro or Windows 7 Professional. However, please note that Windows 7 is no longer supported by Microsoft as of January 14, 2020.

Other Features: The laptop includes various connectivity options, including USB ports (USB 3.0 and USB-C), HDMI, Ethernet, and audio jacks. It also has a built-in webcam, a fingerprint reader for biometric authentication, and a backlit keyboard.

Please keep in mind that the specifications mentioned above are general and can vary depending on the specific configuration or customization options chosen at the time of purchase. It's always a good idea to verify the exact specifications with the seller or consult the product documentation for accurate and up-to-date information.