we figured it out the above post there got me alot more hash i had been running 10 intensity on old config to avoid hw error and much lower TC ..
sadly now that 7970 is close to hashing same as my 290x lol :*( and thats also with the 290x using the recomended config on that list.
200KH/s no HW on MSI 290X 4G Gaming
-I 20 -w 64 --lookup-gap 2 --gpu-engine 1100 --gpu-memclock 1250 --scan-time 1 --queue 0 --no-submit-stale --thread-concurrency 56320