Which board will give me 60 minutes fire resistance?

Individual boards do not carry a period of fire resistance. A period of fire resistance is always achieved by a system following a fire test (for example in a steel framed wall it would typically comprise internal & external boards and insulation to cavity or to the outside). Other considerations would be the direction of fire and the possibility that the wall may be load bearing. A wall tested from one direction will not necessarily provide the same level of fire resistance from the other side.