oclhashcat vs hashcat

[proinside]

You all might already know this, but here it is:

Pick a more or less large, if possible, md5 hash file, and run a simple dictionaire
attack, no rules, no remove option, against your own dictionaires, all of them in one
folder, if possible, just to have a comparasion.

In the test example, oclhashcat gave 14883 hashes cracked.
Hashcat, with the same hash file, same dictionaires, gave 17110 hashes cracked.

Hashcat give in this run some hashes, not plain text, for double md5, if these
hashes are in the dictionaire file of course.
However some plain text were cracked by hashcat that oclhashcat didn't crack.

Anyone else can reproduce and confirm this with their own files ?
The difference of 2227 hashes looks a too high number here.

Attached screen shots before start, and after ending a run on both
programs (1.00b53 for oclhashcat and 0.47b9 for hashcat).