Thats a Legit N3, All SOC are ARM Based.
Manufacturer, Device, Product, Brand, Android Version, API level,build ID, Fingerprint, Resolution, Processor, Memory, etc is all correct. From that app atleast you should have this if you scroll down:
OpenGL 1.X (Adreno(TM) 330 same for GL 2.0
Graphics mode should be RGBA 32BIT
If so, your all set. You can also benchmark it for peace of mind... your score should be 17~20k on quadrant and geekbench 3 should be 800+ for single-core and 2400+ for multi-core. (Mines 869/2510 GB3, 20K on Quadrant but stock should be abit lower)
There is no way any of the fake note 3 soc will come close to these scores.
Never Satisfied With Her Findings....