Time taken to search through 12131 files. compared with the top 4 programs found in results for google search "find duplicate files". (only including programs that use Byte-To-Byte comparisons)

Acute Finder
Time Taken: 4m 06s

Reasonable NoClone 4 (Home edition)
Time Taken: 1m 53s

Duplicate File Finder
Time Taken: 1m 41s

Duplicate Finder v3.2
Time Taken: 1m 28s

My program:
DupFind v2 (compiled)
Time Taken: 8s