Is It True That The Boeing 777X's Operating Costs Are 20% Lower Than The Airbus A380's? … four-engine configuration of the Airbus A380 obsolete. Each GE9X … Suitable Comparison The comparison to the Airbus A380 is often … more balanced perspective is the Airbus A350-1000. Unlike the A380 … but when measured against the Airbus A380, the efficiency gain …