Less ram is shown by fedora

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while using lshw, the output for memory is:

*-memory
          description: System Memory
          physical id: 1
          slot: System board or motherboard
          size: 8GiB
        *-bank:0
             description: SODIMM DDR4 Synchronous Unbuffered (Unregistered) 2400 MHz (0.4 ns)
             product: RMSA3310MJ86H9F-3200
             vendor: Ramaxel Technology
             physical id: 0
             serial: 11441C6B
             slot: DIMM 0
             size: 4GiB
             width: 64 bits
             clock: 2400MHz (0.4ns)
        *-bank:1
             description: SODIMM DDR4 Synchronous Unbuffered (Unregistered) 2400 MHz (0.4 ns)
             product: M471A5244CB0-CTD
             vendor: Samsung
             physical id: 1
             serial: 00000000
             slot: DIMM 0
             size: 4GiB
             width: 64 bits
             clock: 2400MHz (0.4ns)