John Deere 644G vs John Deere 850B
Verdict: John Deere 644G vs John Deere 850B
The John Deere 644G and the John Deere 850B are both industrial tractors — here is how they stack up on the figures that matter. John Deere 644G leads on rated power with 178 hp against 175 hp. John Deere 644G is the lighter machine (15,983 kg vs 37,515 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 644G is the newer design (1992 vs 1985). In short: choose the John Deere 644G for outright pulling power, or the John Deere 850B if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.