I have tried lower power consumption before (as low as 1050 mhz) and it seemed marginal the amount I was saving in electricity...I only pay .07 for electricity so the high hashrate seemed better. I'll tinker around with it some more. I just got a Watt reader for my electrical outlet so I can see exactly what the cards are drawing vs what the software is reporting.... I do get the sense from my mining pool that I'm not reporting as many shares as my hashrate would suggest...so I'll try lower settings for awhile to see if I can get more shares/hashrate. thanks for the suggestions!