Digital Foundry : There had been rumours, rumblings and actual, solid reporting of a handheld from Valve for some time now, but the hardware has finally broken cover - and it's looking promising. Steam Deck is built on the same architectural building blocks as the new consoles from Sony and Microsoft, downscaled and refactored for a handheld. With up to 1.6TF of GPU compute power aimed at delivering circa 720p gaming, the idea is to break PC gaming free from the traditional limitations of the PC itself. It's a handheld designed to be as liberating as Nintendo Switch, but tied into the openness and sheer size of the Steam ecosystem.