Holy Crap:

Non-cached:

Copy C:\WINDOWS\Desktop\1-14512.zip to c:\1-14512.zip
Size: 111135026
Time: 2660 ms
Transfer Rate: 39.845 MB/s

Cached:

Copy C:\WINDOWS\Desktop\1-14512.zip to c:\1-14512.zip
Size: 111135026
Time: 1207 ms
Transfer Rate: 87.810 MB/s