A modern civil turbofan (With high-bypass ratio) has a low specific thrust (~30 lbf/(lb/s)) to keep the jet noise at an acceptable level, and to achieve low fuel consumption, because a low specific thrust helps to improve specific fuel consumption (SFC). This low specific thrust is usually achieved with a (Aforementioned as a parenthesis) high bypass ratio.
Modern civil turbofan engines, specifically those with high bypass ratios, are designed for both low noise levels and efficient fuel consumption. This is achieved through the use of a high bypass ratio to achieve a low specific thrust.