8 material differences · fewer than 12

Tractor oneJohn Deere 66202002–2007No measured PTO figureTractor twoRenault Ares 656 RZ2002–2005No measured PTO figure

Which should you choose?

Read our verdict on the 6620 and the Ares 656 RZ → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

8 material differences · 9 fields identical or within 5%, which is not counted as material

John Deere 6620 and Renault Ares 656 RZ, field by field
Field	6620	Ares 656 RZ	Gap
Engine
Engine power, claimed claimed	123 hp	123 hp	—
Engine declared	John Deere PowrTech 6.068 HLA-070/V2-DE or 6.068 HL-471/HP	JOHN DEERE 6068 TRT 71	differs
Displacement declared	6.79 L	6.79 L	—
Maximum torque declared	353 lb·ft · 479.0 N·m	350 lb·ft · 474 N·m	—
Transmission
Top speed declared	24.9–31.1 mph · 40–50 km/h	24.9 mph · 40 km/h	differs
Clutch declared	—	Pedal-operated driving clutch with four plates and 230 mm disc diameter	—
Hydraulics & hitch
Hydraulic centre declared	Closed centre	Closed centre	—
Hydraulic control declared	Load sensing	—	—
Pressure declared	3,017–3,220 psi · 208–222 bar	2,901 psi · 200 bar	differs
Three-point lift, at the coupling points declared	16,755 lb · 7,600 kg	19,048 lb · 8,640 kg	+14% Ares 656 RZ
Rear PTO speeds declared	540E/540/1000 rpm	540/1000/540E/1000E rpm	differs
Weight & dimensions
Unladen weight declared	13,040 lb · 5,915 kg	13,217 lb · 5,995 kg	—
Maximum permissible mass declared	20,944 lb · 9,500 kg	20,393 lb · 9,250 kg	—
Wheelbase declared	104.3 in · 2,650 mm	108.3 in · 2,750 mm	—
Length declared	185.2 in · 4,705 mm	242.1 in · 6,150 mm	+31% Ares 656 RZ
Width declared	96.3 in · 2,445 mm	100.4 in · 2,550 mm	—
Height, over the cab declared	113.2 in · 2,875 mm	115.9 in · 2,945 mm	—
Ground clearance declared	18.1 in · 460 mm	21.5 in · 545 mm	+18% Ares 656 RZ
Turning radius, braked declared	—	16.1 ft · 4.90 m	—
Fuel tank declared	218.7 qt · 207.0 L	264.2 qt · 250.0 L	+21% Ares 656 RZ

Source

Source