The CMOS sensor on both advance and professional are the same so both are scanning at 4K and scaling to record 1080p. Whether the processing is the same is the question. I have both advance and professional and when recording in 1080p they look identical. In 4k the only issue is the relatively low bit rate of 60mbs. It's just not enough and with movement can cause artifacts. In 1080p the bitrate is relatively high at 40mbs. I work in broadcast and 50mbs is the golden number but that does depend on the codec.