A recent post on Weibo showed that supposedly Samsung Galaxy S7 is being tested in benchmark AnTuTu, with the model number Sm-G930F.
The revealed specs are:
a 5.1-inch 1440 x 2560 display
4GB of RAM
64GB of internal storage
Android 6.0.1 Marshmallow
12 MP camera.
The phone will be running on Samsung's own Exynos 8890 chip.