Memory Used

[TBlack]

6.61B3

ChunkCacheSize=1000 for both versions

6.6x uses two to three times more memory than 6.56R to download the same file.

6.61B3
Cache Value on Taskbar: 990/1000 (0)
Commit (KB) 1,069,220
Working Set (KB) 815,664
Private (KB) 798,222

6.56R values are always 30% to 50% of the above values. Seems to be more memory efficient.
Cache Value on Taskbar: 902/1000 (0)
Commit (KB) 241,564
Working Set (KB) 221,940
Private (KB) 204,816

May be by design and not an issue, but thought I would report.

Thanks