8x AMD HD7970 gives 77981.6 M/s in our Ubuntu 12:04 system. This is with Catalyst drivers version 12.8 and oclHashcat version 0.13. Our 7970s are 1100MHz.
Code:
/opt/oclHashcat-lite-current/oclHashcat-lite64.bin -n 800 --gpu-loops 1024 -1 ?l?d?s?u --gpu-temp-disable --outfile-watch 0 --restore-timer 0 --runtime 10 --pw-min 8 -m 0 ffffffffffffffffffffffffffffffff ?1?1?1?1?1?1?1?1?1
oclHashcat-lite v0.13 by atom starting...
Password lengths: 8 - 54
Watchdog: Temperature abort trigger disabled
Watchdog: Temperature retain trigger disabled
Device #1: Tahiti, 2048MB, 1100Mhz, 32MCU
Device #2: Tahiti, 2048MB, 1100Mhz, 32MCU
Device #3: Tahiti, 2048MB, 1100Mhz, 32MCU
Device #4: Tahiti, 2048MB, 1100Mhz, 32MCU
Device #5: Tahiti, 2048MB, 1100Mhz, 32MCU
Device #6: Tahiti, 2048MB, 1100Mhz, 32MCU
Device #7: Tahiti, 2048MB, 1100Mhz, 32MCU
Device #8: Tahiti, 2048MB, 1100Mhz, 32MCU
[s]tatus [p]ause [r]esume [q]uit =>
NOTE: Runtime limit reached, aborting...
Session.Name...: oclHashcat-lite
Status.........: Aborted
Hash.Target....: ffffffffffffffffffffffffffffffff
Hash.Type......: MD5
Time.Started...: Mon Feb 11 14:50:22 2013 (10 secs)
Time.Estimated.: Tue Feb 12 14:28:26 2013 (23 hours, 37 mins)
Plain.Mask.....: ?1?1?1?1?1?1?1?1
Plain.Text.....: ***c,JAN
Plain.Length...: 8
Progress.......: 780140544000/6634204312890625 (0.01%)
Speed.GPU.#1...: 9747.5M/s
Speed.GPU.#2...: 9747.9M/s
Speed.GPU.#3...: 9747.8M/s
Speed.GPU.#4...: 9748.4M/s
Speed.GPU.#5...: 9747.8M/s
Speed.GPU.#6...: 9747.4M/s
Speed.GPU.#7...: 9747.5M/s
Speed.GPU.#8...: 9747.4M/s
Speed.GPU.#*...: 77981.6M/s
Started: Mon Feb 11 14:50:22 2013
Stopped: Mon Feb 11 14:50:43 2013