Handle 0x001F, DMI type 16, 23 bytes
Physical Memory Array
    Location: System Board Or Motherboard
    Use: System Memory
    Error Correction Type: None
    Maximum Capacity: 16 GB
    Error Information Handle: No Error
    Number Of Devices: 2

sudo lshw | grep -A 8 bank

*-bank:0
         description: SODIMM DDR3 Synchronous 1600 MHz (0,6 ns)
         product: TMT41GS6BFR8A-PBSC
         vendor: Hitachi
         physical id: 0
         serial: 00171418
         slot: ChannelA-DIMM0
         size: 8GiB
         width: 64 bits

    *-bank:1
         description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns) [empty]
         product: 99U5469-053.A00LF
         vendor: Kingston
         physical id: 1
         serial: 93341814
         slot: ChannelB-DIMM0
         width: 64 bits
         clock: 1333MHz (0.8ns)