Yes, it is. It is better than aluminum, but not as good as copper. Aluminum is often used in heat sinks, though, because it is cheaper than gold or copper.
Gold is a really good conductor. Technically, because gold is an excellent reflector of infra-red it can be used as thermal insulation.
Gold is a good conductor of heat. It has a high thermal conductivity, which means it can effectively transfer heat. Gold is often used in electronic and industrial applications where thermal management is important.
Gold is a conductor of electricity. It is highly efficient at conducting electricity due to its low resistance and high thermal conductivity.
More or less everything conducts thermal energy, but to different degrees.
Gold is actually a good conductor of heat, as it has a high thermal conductivity. It is used in certain applications like electrically heated mats due to this property.
Gold is a really good conductor. Technically, because gold is an excellent reflector of infra-red it can be used as thermal insulation.
When we consider the two elements gold and lead, we find that gold has a (ball park) thermal conductivity of about ten times that of lead. If you guessed that gold is about ten times as good a conductor of electricity as lead (based on the information presented regarding thermal conductivity), you'd be on target. In general, thermal and electrical conductivity both "track" from metal to metal. Good electrical conductors are generally good thermal conductors.
Wood is a thermal insulator. It is a poor conductor of heat.
Gold is a relatively good thermal conductor, but not as high as materials like copper or silver. It has a thermal conductivity of about 320 W/mK, which means it can effectively transfer heat but is not the most efficient material for this purpose.
Gold is a good thermal conductor (looks like only copper and silver are better - see engineeringtoolbox dot com) Gold is also a good electrical conductor. Copper and silver are a little better, though.
Gold is often used to ensure a positive connectivity on many electrical devices or computer components.
Aluminum is a conductor of thermal energy and electrical energy.