sentences:  Venus Engine IX is a quad-core processor first introduced in Panasonic's fifth-generation m43 MILC, the GH4, and later used in the FZ1000, LX100 and DMC-G7.In the GH4 the IX processor allows 4K video, 12 fps continuous shooting and 1080p shooting at bitrates as high as 200Mbit/s.First adopted by GH4 of Lumix G series.