Semiconductor memory device employing processing in memory (PIM) and operation method of the semiconductor memory device

A semiconductor memory device employing processing in memory (PIM), the semiconductor memory device comprising:

• a plurality of memory banks comprising a first memory bank group comprising a computation circuit and a second memory bank group without a computation circuit;
• and
• a control circuit configured to control a PIM operation by the first memory bank group to be performed simultaneously with processing of memory requests for the plurality of memory banks while satisfying a predetermined processing condition of the semiconductor memory device.