sudo lshw -short -C memory was giving me 2133 MHz, even though my memory is 3.2 GHz.
It turns out you have to enable a setting on your BIOS called XMP (for Intel) or DOCP (for AMD) to get full memory speed.
ASUS BIOS:
MSI BIOS:
2133 MHz memory speed instead of 3200 MHz?
Talles L - Aug 16 - 
