Qualcomm Snapdragon 4 Gen 2 Advantages
More modern manufacturing process (4nm vs 10nm)
Released 5 years and 6 months late
Qualcomm Snapdragon 845 Advantages
Better graphics card performance FLOPS (0.727 TFLOPS vs 0.3667 TFLOPS )
Larger memory bandwidth (29.8GB/s vs 25.6GB/s)
Higher Frequency (2800MHz vs 2200MHz)