CPU-Z is a famous freeware utility for windows which will help you to get the details of your Hardware.
CPU
Name and number.
Core stepping and process.
Package.
Core voltage.
Internal and external clocks, clock multiplier.
Supported instruction sets.
Cache information.
Mainboard
Vendor, model and revision.
BIOS model and date.
Chipset (northbridge and southbridge) and sensor.
Graphic interface.
Memory
Frequency and timings.
Module(s) specification using SPD (Serial Presence Detect) : vendor, serial number, timings table.
System
Windows and DirectX version.
You may get this for windows from here
CPUID, the developer of CPU-Z is released an android version of the CPU-Z which will help you to get details like
SoC (System On Chip) name
architecture
clock speed for each core
System information
device brand & model
screen resolution
RAM
storage
Battery information
level
status
temperature
Sensors
Read more get the CPU-Z for android from play store