It sounds like you're looking for key features of the portable (or “PE bootable”) 64-bit version of Macrium Reflect (likely the Rescue Media or Technician’s version).
Macrium Reflect is widely regarded as one of the most reliable disk imaging and backup solutions for Windows. While most users are familiar with the installed version, the Macrium Reflect Portable 64-bit application—available exclusively through the Technician’s License Macrium Reflect Portable 64 Bit
Rapid Delta Technology: Significantly speeds up cloning and imaging by only copying changed data blocks. It sounds like you're looking for key features