AMD Ryzen 7 8840HS 's Advantages
Better graphics card performance
Lower TDP (30W vs 54W)
AMD Ryzen 9 270 's Advantages
Released 1 years and 1 months late
Higher specification of memory (7500 vs 7500)
Larger memory bandwidth (120GB/s vs 89.6GB/s)
Higher base frequency (4.0GHz vs 3.3GHz)