Aircraft comparison

Dassault Falcon 6X vs Gulfstream G650

Summary
The Dassault Falcon 6X and the Gulfstream G650 are two ultra-long-range jets, compared here on the specifications that matter. On the numbers, the Gulfstream G650 flies farther (7,000 vs 5,500 nm); the Gulfstream G650 carries more (19 vs 16 pax); the Gulfstream G650 is faster (516 vs 493 kt).
Specification Falcon 6X G650
Range 5,500 nm (10,186 km) 7,000 nm (12,964 km)
Max cruise speed 493 kt (913 km/h) 516 kt (955.6 km/h)
Max Mach 0.9 mach 0.925 mach
Max operating altitude 51,000 ft (15,544.8 m) 51,000 ft (15,544.8 m)
Max takeoff weight 77,460 lb (35,135.2 kg) 99,600 lb (45,177.8 kg)
Typical passengers 12 count 14 count
Max passengers 16 count 19 count
Cabin length 40.4 ft (12.31 m) 46.8 ft (14.26 m)
Cabin height 6.5 ft (1.98 m) 6.4 ft (1.95 m)
Cabin width 8.5 ft (2.59 m) 8.5 ft (2.59 m)
Baggage volume 155 cuft (4.39 m3) 195 cuft (5.52 m3)
Powerplant Pratt & Whitney Canada PW812D Rolls-Royce BR725
Engines 2 count 2 count
Thrust per engine 13,000 lbf 16,900 lbf

Highlighted cells mark the stronger value per row (direction is per-metric). Economics and derived figures are estimates, not booking prices.