hashcat is for CPU only
oclhashcat-* is for GPU, and yours will work with, but will be slow... (slow means for you ~115 millions hash/sec for single MD5, but phpbb3 is slower)
oclhashcat-* is for GPU, and yours will work with, but will be slow... (slow means for you ~115 millions hash/sec for single MD5, but phpbb3 is slower)