BinCoMerge
Compare binary files in hexadecimal view
...For example, with a file sizing between 16 KiB and 32 KiB, Bincomerge will firstly seek for all common blocks bigger than 16 KiB. Then, it will seek for all common bigger than 8 KiB, then 4KiB, 2KiB, 1024 Bytes...
Because it works by levels, BinCoMerge can show some results before it finishes.