According to an article from BGR
, Sony is planning to support a resolution of over 4,000 pixels on the upcoming PlayStation 4. This increase in resolution would be twice that of the PlayStation 3's current maximum resolution of 1080p (1912 x 1080). This rumor goes in line with Sony's alleged
new line of 80in LED TV's due out for the holidays which support the resolution. The combination of a new LED TV line, along with the PlayStation 4, could highlight a new Sony marketing strategy to push out 4k technology onto consumers; similar to recent efforts with 3D.
It is worth noting that the source of these rumors also estimates the price of the new 4k-supporting LED's around $30,000, so it may be a few (or several) years before the technology becomes practical enough for mainstream use. In fact, a large percentage of today's games and television programs don't even support 1080p, instead opting for older 720p or lower formats.