Razer's long anticipated gaming tablet has been officially unveiled at CES 2013, with a 10.1in screen and Windows 8 operating system.

Razer Edge tablet CES

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Previously known as Project Fiona, the device, which combines physical controls and a touch sensitive screen, is now named Edge, has 10.1 inch screen and is Windows 8 based.

Whereas it was previously reported to have fixed physical controls on either side of the screen, Edge's side controllers are now entirely removable so that it can be used as a standalone tablet. It also comes with a keyboard and stand.

Hardware wise, Razer is calling Edge the "most powerful tablet in the world." It will come in two models: Standard and Pro. The Standard model has an Intel Core i5 processor, 4GB of RAM and either 64GB or 128GB of storage, while the Edge Pro uses an i7 processor, 8GB of RAM, and either 128GB or 256GB of storage. In terms of graphics, both models feature an Nvidia GeForce GT 640M LE graphics chip which can run current gen PC games at default settings with ease.

The device weighs about two pounds, similar to Microsoft's Surface, and has a battery life of between two and four hours for gaming, and eight hours for general use. The Standard model will sell for around £600, and Razer has said the Pro version will cost between $1299 (£800) and $1499 (£930), more than double the price of an iPad 3, but then that performance is more like a high-end laptop than any tablet we've seen before.

No release date has been confirmed for the Edge yet, though Razer has stated that the Standard model will not feature the keyboard and stand peripherals.