5.6-ish mh/s. 8 7970's. All with Arctic Accelero coolers.
They all hash between 645 and 735 kh/s depending on the card.
All hash between 48 to 52 degrees C due to the fantastic coolers! I really believe these things are worth every penny when it comes to scrypt mining since we are overclocking and sometimes even overvolting the memory so far. My vrm's, core, the whole bit stay super cool. Every single card I ever add to the rigs will be equipped with one asap.
Plus it makes the resale value a bit better then the rest and a bit more desirable then the rest considering most can acknowledge and appreciate what it means to keep your GPU's running at a much lower temperature.
I would be interested in knowing the brand and core/mem settings you are using. Either via reply or PM. Thanks if you are cool with sharing the info.
I have had problems with some 7970s not performing as well as other given the same configuration, but a different brand of 7970 card manufacturer.
Also - no one has posted of anything north of 12,000kH/s - is everyone out there with that kind of hashing muscle too nervous to post about it? Or are they not in this sub-forum? Are they running bot-nets?
Any theories on the miners with 10,000kH/s - 100,000kH/s and how they do it? Would love to hear about someone with an industrial setup.