1. Every time I change the mem-clock, the hashrate will go up slightly (about 15Kh/s), and then drop back down to where it was (275Kh/s). According to GPU-Z, the speed is staying where I set it, so why is the hashrate going back down???
It's complicated.
really? care to explain, or is your comment just a reflection of your inadequacies? Either your inadequacies in articulation, which prevent you from explaining, or is it you inadequacies in comprehension, which prevent you from understanding it yourself?