oclHashcat-0.24 performance issue

[d2]

Hi,

I am having problems with performance with recent version of oclHashcat.

Current configuration:

• oclHashcat-0.24
  
• ATI 5970
  
• display drivers and sdk: 10-12_vista64_win7_64_dd_ccc_ocl (SDK 2.3)
  
• OS: Win7 64bit
  
• CPU: i7 960@3,20GHz
  

Typical cracking scenario (mask attack):

Code:

./oclHashcat64.exe ${HASHLIST} ${LEFT} ${RIGHT} --output-file=${HASHLIST}_cracked.txt --output-format=0 --remove --hash-mode=0 --gpu-accel=160 --gpu-loops=1024

With oclHashcat-0.23 and SDK 2.2 I was able to crack passwords at 3400+MHash/sec but now maximum is sth like 2400MHash/sec and I wonder if there is anything I can do to speed it up? Maybe additional switches (haven't noticed any actually..). I already tried with different gpu-accel and dpu-loops values but it made no difference. Any ideas (except for going back to v0.23)?