The SoM-iMX6U is based on the Freescale/NXP i.MX6 UltraLite Cortex A7 processor and has ARM Sleep Mode of 3.5mA.
The VDX3-ETX is a low-power CPU module which compliant with ETX standard. It takes the advantage of Vortex86DX 1GHz x86 CPU which integrate the PCIe, IDE, I2C, VGA, LVDS,PS/2, USB, HD Audio and even with 16-bit ISA bus support.
AQ7-IMX6 CPU module is a tough module with temperature support even for harsh environments. It can operate in extreme temperatures from -40°C to +85°C.