ESP8266 antenna

What is the difference for distance of antenna between ESP8266 ESP-07 and ESP-12-F.
ESP-07 has a branch antenna and ESP-12-F has PCB antenna.
Very thank you.

Anybody Idea?

I remember reading that the ceramic antenna on the ESP-07 doesn't perform as well as the one on the recent ESP-12's under most circumstances (you may notice that the PCB antenna has undergone some tweaks between versions). I don't have a citation though. Both work pretty well. The 07 usually comes with the 512k flash instead of the 4mb flash.