Claas Ares 657 ATZ or John Deere 6620?
Which should you choose?
The data can’t decide this. Power at the PTO shaft cannot be compared: the Ares 657 ATZ has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 6620 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft.
Generated by rule set compare@4 from the figures on the side-by-side table, allowed by route “similar machines”. Measured figures are compared only with measured, claimed only with claimed, at the same test condition; differences within each figure’s tolerance are not called.
What decides it, question by question?
| Question | Ares 657 ATZ | 6620 | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 91.9 kW (123.2 hp)Traktorenlexikon, “Claas Ares 657 ATZ” | 92 kW (123 hp)Traktorenlexikon, “John Deere 6620” | Not comparableNot comparable on power at the PTO shaft: the Ares 657 ATZ has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 6620 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft. |
| Which turns a litre of fuel into more work at the shaft? | — | — | No figureNo call on fuel efficiency at the shaft: no figure on record for the Ares 657 ATZ and the 6620. |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the Ares 657 ATZ and the 6620. |
| Which pumps more oil for implements? | — | — | No figureNo call on hydraulic flow: no figure on record for the Ares 657 ATZ and the 6620. |
| Which lifts more on the three-point hitch? | 4,090 kg (9,017 lb)Traktorenlexikon, “Claas Ares 657 ATZ” | 7,600 kg (16,755 lb)Traktorenlexikon, “John Deere 6620” | Not comparableNot comparable on three-point lift: the Ares 657 ATZ: lift through the full range 610 mm behind the ends, as stated by the source (Traktorenlexikon, “Claas Ares 657 ATZ”); the 6620: lift at the hitch ends, as stated by the source (Traktorenlexikon, “John Deere 6620”) — not the same quantity, basis and condition. |
| Which is heavier, for traction? | 5,030 kg (11,089 lb)Traktorenlexikon, “Claas Ares 657 ATZ” | 5,915 kg (13,040 lb)Traktorenlexikon, “John Deere 6620” | Ahead (a fact, not an advantage)The John Deere 6620 is 18% heavier (885 kg / 1,951 lb) than the Claas Ares 657 ATZ (both unladen weight, as stated by the source). |
| Which may carry more ballast and load? | 8,800 kg (19,401 lb)Traktorenlexikon, “Claas Ares 657 ATZ” | 9,500 kg (20,944 lb)Traktorenlexikon, “John Deere 6620” | EvenEven on maximum permissible mass (both maximum permissible mass, as stated by the source): the difference is under the 10% threshold, too small to call. |
| Which has the wider choice of gears? | 24OECD test report 2294, 2005 | 24 to 36Traktorenlexikon, “John Deere 6620” | EvenEven on forward gears (both forward gears, as stated by the source): the figures vary by configuration and the ranges overlap. |
| Which offers a creeper range? | — | — | No figureNo call on a creeper range: not stated for the Ares 657 ATZ and the 6620. |
| Which is faster on the road? | 40 km/h (24.9 mph)Traktorenlexikon, “Claas Ares 657 ATZ” | 40 km/h (24.9 mph) to 50 km/h (31.1 mph)Traktorenlexikon, “John Deere 6620” | EvenEven on top speed (both top speed forward, as stated by the source): the figures vary by configuration and the ranges overlap. |
| Which offers more PTO speeds? | 540/1000 rpmOECD test report 2294, 2005 | 540E/540/1000 rpmTraktorenlexikon, “John Deere 6620” | EvenEven on PTO speeds: the same speeds (540, 1000 rpm). |
| Which PTO runs independently of the ground drive? | — | independentTraktorenlexikon, “John Deere 6620” | No figureNo call on PTO independence: not stated for the Ares 657 ATZ. |
| Which drives on both axles? | 4WDTraktorenlexikon, “Claas Ares 657 ATZ”; OECD test report 2294, 2005 | 4WDTraktorenlexikon, “John Deere 6620”; OECD test report 2038, 2003 | EvenEven on drive: every machine is available with four-wheel drive. |
| Which is newer, and what about parts? | 2005–2007 | 2002–2007 | EvenSame era: production began within 5 years of each other. We hold no parts-availability data, so there is no call on parts. |
What does this mean in plain words?
- The John Deere 6620 is 18% heavier (885 kg / 1,951 lb) than the Claas Ares 657 ATZ (both unladen weight, as stated by the source).
- Even on maximum permissible mass (both maximum permissible mass, as stated by the source): the difference is under the 10% threshold, too small to call.
- Even on forward gears (both forward gears, as stated by the source): the figures vary by configuration and the ranges overlap.
- Even on top speed (both top speed forward, as stated by the source): the figures vary by configuration and the ranges overlap.
- Even on PTO speeds: the same speeds (540, 1000 rpm).
- Even on drive: every machine is available with four-wheel drive.
- Same era: production began within 5 years of each other. We hold no parts-availability data, so there is no call on parts.
- Not comparable on power at the PTO shaft: the Ares 657 ATZ has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 6620 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft.
- Not comparable on three-point lift: the Ares 657 ATZ: lift through the full range 610 mm behind the ends, as stated by the source (Traktorenlexikon, “Claas Ares 657 ATZ”); the 6620: lift at the hitch ends, as stated by the source (Traktorenlexikon, “John Deere 6620”) — not the same quantity, basis and condition.
- No figure on record for every machine, so no call on: fuel efficiency at the shaft, drawbar power, hydraulic flow, a creeper range and PTO independence.
← Every figure for both machines, side by side, with sources