cex.io difficulty
Here´s a table for the suggested Difficulty-settings if you are mining with own hardware on GHash.io (Cex.io).
GH/s Diff.
1-32 16
33-64 32
65-128 64
129-256 128
257-512 256
513-1024 512
>1024
1024
If you use virtual hash-power from cex.io your difficult will be fixed 16.