i built two rigs, one with two 270's (left) and one with three 270's (right)
after some ten minutes of mining left rig has an enormous amount of shares compared to right
http://imgur.com/7w8c3y4im mining @ wemineltc.com, the pool reports accurate hashrate and combined current share count.
both rigs run BAMT1.3 and use the following settings:
intensity 19
worksize 256
lookup-gap 2
thread-concurrency 21568
gpu-threads 1
gpu-engine 1125
gpu-memclock 1450
gpu-powertune 20
is this normal? or maybe theres something i don't understand...