Is my HD80IRM Rev B/HD40IR Rev B camera 2MP or 3MP?

The HD80IRM dome camera and the HD40IR bullet camera are available in two different models. The original model, model names HD80IRM & HD40IR, are 2MP (1080p) resolution cameras. The newer models of these two cameras, model names HD80IRM Rev B & HD40IR Rev B, are 3MP cameras.

All cameras with the model name HD80IRM Rev B & HD40IR Rev B are 3MP resolution video.