Aircraft comparison

Dassault Falcon 8X vs Gulfstream G650

Summary
The Dassault Falcon 8X 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 6,450 nm); the Gulfstream G650 carries more (19 vs 16 pax); the Gulfstream G650 is faster (516 vs 488 kt).
Specification Falcon 8X G650
Range 6,450 nm (11,945.4 km) 7,000 nm (12,964 km)
Max cruise speed 488 kt (903.8 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 73,000 lb (33,112.2 kg) 99,600 lb (45,177.8 kg)
Typical passengers 12 count 14 count
Max passengers 16 count 19 count
Cabin length 42.7 ft (13.01 m) 46.8 ft (14.26 m)
Cabin height 6.2 ft (1.89 m) 6.4 ft (1.95 m)
Cabin width 7.7 ft (2.35 m) 8.5 ft (2.59 m)
Baggage volume 140 cuft (3.96 m3) 195 cuft (5.52 m3)
Powerplant Pratt & Whitney Canada PW307D Rolls-Royce BR725
Engines 3 count 2 count
Thrust per engine 6,722 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.