Kotaku claims to have received information on the console's development kit from a source going by the name of SuperDae, an individual who once attempted to sell next-generation Xbox development kits on eBay.
The report suggests that the console, said to be in the works under the codename of Orbis, will feature 8GB of system memory and 2.2GB of video memory.
Powered by a 4x Dual-Core AMD64 'Bulldozer' processor and a AMD R10xx GPU, the latest Orbis development kit supposedly comes with 160GB of hard drive space and uses the Blu-ray storage medium.
The leaked information also includes details of the console's new controller and user accounts.
Consistent with previous rumours that Sony is dropping the DualShock 3 design, the system's primary input will reportedly include improved motion detection with enhanced tilt correction and an RGB LED light built in.
The peripheral is also said to include touchpad technology similar to that found on the PS Vita, as well as a physical 'share' button that is expected to act as a means of accessing social networking while gaming.
Concerning user accounts, the PS4 will allegedly allow "multi-user simultaneous logins" by linking accounts to controllers. While pads will not be "locked" to logins, users will be prompted to sign in each time one is activated.
This feature will enable multiple players to each receive trophies when completing tasks in local co-op sessions, but it is unclear whether it will work in the same way online.
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The report is quick to point out that the specs revealed were taken from a development kit, and are subject to change.
Sony is yet to officially confirm details of its PlayStation 3 successor, but a 2013 unveiling appears increasingly likely.
Gallery - ten games that will likely appear on PlayStation 4 and the next Xbox:
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