able to output 4K graphics for games. Kotaku reports hearing about
the PlayStation 4 upgrade from several developers, who Sony has
briefed on the plans. It's not stated when the upgraded PlayStation
will be ready or how it would be sold, but the implication is that
Sony could, potentially in the next year or so, begin selling a 4K-
compatible PlayStation alongside the existing PS4.
A 4K PlayStation would require stronger graphics
capabilities than the current PS4 has. Kotaku reports that
the upgraded model, which developers seem to be
colloquially referring to as PS4.5, includes both an
upgraded processor and GPU. Both would be necessary to
output PS4 games at 4K resolution, which requires much
more power than it takes to push a game out at 1080p.
(The current PS4 supports 4K photos and videos, but not
games.)
Though upgrading a console mid-cycle is an uncommon (but not
entirely unheard of) move, it would make a lot of sense in this
case. TV sets are currently transitioning to 4K — more affordable
4K sets are starting to make their way on the market, and we're
not too many years away from most new models being 4K.
Additionally, console makers may be moving away from the idea of
nearly decade-long hardware cycles. Microsoft has already
suggested that the Xbox One could get hardware upgrades , so it's
not terribly surprising to hear that Sony is taking the same
approach.
(Source : The Verge )