Lower your memory, increase core clock and start playing with intensity (-i) in ccminer.
Let it run for a little to make sure it's stable then repeat fine tweaking until you find sweet spot (lowest possible power consumption with highest possible hashrate).
This is specific for every card, depends on your PSU, VRM, cooling and other factors. You can't have a "generic" setting, you need to find the best for your rig.
@saLve88 please let's keep the comments in english; thanks!
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