Visual TV Size Comparison : 70 inch 16x9 display vs 80 inch 16x9 ... Stats, 70 inch 16x9, 80 inch 16x9. Width, 61.01 inches, 69.73 inches. Height, 34.32 inches, 39.22 inches. Area, 2093.77 inches², 2734.72 inches². As a 4:3 ...