The Hisense U8N 65" outperforms the LG QNED80 65" in brightness (2000 vs 1000 nits per RTINGS) and refresh rate (144Hz vs 120Hz), making it the stronger pick for gaming and bright rooms. LG's webOS provides a smoother daily experience but trails in raw specs. Hisense wins on value and performance metrics from CNET and RTINGS reviews.