This shit is fucking stupid. I've spent weeks on this forum and now have a serious question about mining and can't post in the mining section. At first I thought it was related to the hack or something but I noticed that everyone else can post but I can't.
So if anyone can answer my mining question: I have a 6970 mining at 328MHashes/s I'm using guiminer on Windows 7 with the flags -v -w 128 -f 30. How can I increase my mining speed since the bitcoin hardware comparison website said you can get around 385 out of it. Also, if I decide to buy another GPU, to put on the second PCIe slot, does it have to be the same card and manufacturer? Would really appreciate the help.
Just because you have a 6970 doesn't mean you can get 385MH/s. Many different graphics card vendors use the same GPU (6970) and they might have different clock speeds and all sorts of stuff like that which then affect your mining speed. You can probably get some more juice out of it by playing with the flags. Try to increase them a bit, mine for a few minutes see what the average is. If it's higher, then raise them a bit more until they start degrading. Finetune the parameters -- you'll get the point.