Realme X3 Super Zoom as model name spotted in the NBTC official website having a model number of RMX2086. Similarly, the Realme X3 spotted in Geekbench with the same model number RMX2086 with 12GB RAM memory powered by Snapdragon 855+ octa-core processor. Also, the upcoming Realme X3 is running on Realme UI v2.0 based on Android 10 out of the box.  
According to the geek bench score, the Realme X3 scores 788 on single-core and 2624 points on the Multi-core score. The scores are based on a 12GB RAM variant model and runs at 1.78GHz clock speed. It powered by Octa-core processor and alleged news says that it could be a Qualcomm Snapdragon 855+ processor in SOC.