Killzone 2 framerate can drop as low as 20fps

[dbot]

My fact checking:

• The refresh rate of the TV indicates its fps capability 1 Hz = 1fps.  Most digital TV's range between 60Hz (US) or 60 fps and 240 Hz or 240 fps.
• Digital Foundry is an extremely reputable site with no platform allegiances.  If they said it, it's true.  They are the source of most video comparisons and complete framerate analysis on most games.  They have videos of all of the big games with their dirty frame rate secrets (GeoW2 with it's 24 fps dips).  They also do a nice job of explaining why the dip occurred and why you really shouldn't worry about it.
• The dips in Killzone 2 are not a problem visually becasue the game is able to conceal them through the use of motion blur.  This may be an issue in terms of controller responsiveness.

• Nice optical illusion gif :