Is my test results normal?（oclhashcat-plus for truecrypt ,2*gtx690)

[jb_bak]

Is this about right for 4 7970s? Should I even mess with overclocking? I do have them watercooled.

Session.Name...: oclHashcat-lite
Status.........: Aborted
Hash.Target....: XXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Hash.Type......: MD5
Time.Started...: Thu Aug 29 10:44:43 2013 (2 mins, 57 secs)
Time.Estimated.: Mon Sep 2 22:05:30 2013 (4 days, 11 hours)
Plain.Mask.....: ?1?1?1?1?1?1?1?1?1
Plain.Text.....: ***0gwMER
Plain.Length...: 9
Progress.......: 6226247680000/13537086546263552 (0.05%)
Speed.GPU.#1...: 8938.2M/s
Speed.GPU.#2...: 8938.1M/s
Speed.GPU.#3...: 8205.3M/s
Speed.GPU.#4...: 8948.3M/s
Speed.GPU.#*...: 35029.8M/s
HWMon.GPU.#1...: 94% Util, 41c Temp, 20% Fan
HWMon.GPU.#2...: 95% Util, 41c Temp, 20% Fan
HWMon.GPU.#3...: 96% Util, 43c Temp, 20% Fan
HWMon.GPU.#4...: 99% Util, 41c Temp, 20% Fan