Systems, methods, and other embodiments associated with speculating whether a read request will cause an access to a memory are described. In one embodiment, a method includes detecting, in a memory, a read request from a processor and speculating whether the read request will cause an access to a memory bank in the memory based, at least in part, on an address identified by the read request. The method selectively enables power to the memory bank in the memory based, at least in part, on speculating whether the read request will cause an access to the memory bank.