Qualcomm Snapdragon 801 Advantages
Lower TDP (6W vs 9W)
Qualcomm Snapdragon 845 Advantages
Better graphics card performance FLOPS (0.727 TFLOPS vs 0.148 TFLOPS )
Larger memory bandwidth (29.8GB/s vs 14.9GB/s)
Higher Frequency (2800MHz vs 2500MHz)
More modern manufacturing process (10nm vs 28nm)
Released 3 years and 10 months late