John Deere 644D vs John Deere 850C

Verdict: John Deere 644D vs John Deere 850C

The John Deere 644D and the John Deere 850C are both industrial tractors — here is how they stack up on the figures that matter. John Deere 850C leads on rated power with 185 hp against 165 hp. John Deere 644D is the lighter machine (13,299 kg vs 15,115 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 850C holds more fuel (348.2 L vs 253.6 L) for longer stints between fills. John Deere 850C is the newer design (1994 vs 1985). In short: choose the John Deere 850C for outright pulling power, or the John Deere 644D if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.