MediaTek Helio P90 Advantages
Lower TDP (5W vs 6W)
Samsung Exynos 1280 Advantages
Better graphics card performance FLOPS (0.487 TFLOPS vs 0.1552 TFLOPS )
Larger memory bandwidth (17GB/s vs 13.91GB/s)
Higher Frequency (2400MHz vs 2200MHz)
More modern manufacturing process (5nm vs 12nm)
Released 3 years and 4 months late