Question re USSR in Afghanistan

[Spike11]

There is a lot of information on the web on this subject, but in terms of the weapons the Russians (and, for that matter, the Mujahedeen) used, the information is sometimes contradictory. Thus, a question:
What tanks were actually sent to Afghanistan? Some sites say the Red Army sent T-72s and/or T-64s, others say the most modern tank used in Afghanistan was the T-62. Can anyone help me out?