RAM works at a low frequency, is it supposed to be like that?

Question

laptops

There is an Acer laptop , in work it shows that the RAM is running at 800Mhz
lshw result:

*-memory
          описание: Системная память
          физический ID: 13
          слот: Системная плата или материнская плата
          размер: 8GiB
        *-bank:0
             описание: SO-DIMM DDR3 Синхронная 800 MHz (1,2 ns)
             продукт: ACR16D3LS1NGG/4G
             производитель: Kingston
             физический ID: 0
             серийный №: E60DA539
             слот: DIMM 0
             размер: 4GiB
             разрядность: 64 bits
             частота: 800MHz (1.2ns)
        *-bank:1
             описание: SO-DIMM DDR3 Синхронная 800 MHz (1,2 ns)
             продукт: FCJ41UG6BBU0-DJ-F
             производитель: ELPIDA
             физический ID: 1
             серийный №: 00000000
             слот: DIMM 0
             размер: 4GiB
             разрядность: 64 bits
             частота: 800MHz (1.2ns)

If you google each bar separately, then the declared frequency is 1600MHz, I tried to pull out one, the result is the same. You can't manually set the frequency in the bios.
It seems to me that this is not a healthy situation, or am I misunderstanding something?

Answer 1

This is normal: 800 is the real frequency, 1600 is the effective frequency.
https://ru.m.wikipedia.org/wiki/DDR_SDRAM