According to GFXBench, the Samsung Galaxy A3 (2017) model number SM-A320x will be featuring 4.7-inch 720p display, Octa-core processor clocked at 1.5GHz, ARM Mali-T830 GPU, 2GB of memory, 8GB of built-in storage, microSD card (up to 128GB), 12MP shooter and 8MP front-facing camera, NFC (most likely to support Samsung Pay), and TouchWiz on top of Android 6.0.1 Marshmallow.
Similar to the Galaxy A3 (2016), the Samsung Galaxy A3 (2017) is expected to launch first in China later this year.