x86 architecture is the evolved version of the 8086 architecture.x86(some documentations refer it as 80x86 or ix86) chip is a member of the 8086 family. These days, x86 generally refers to 80386DX and later. Note: - the '80' in 8086,8085 or 80286 is the trademark label of that time, which later on became 'i'.