It appears that I am limited to 1100mhz ram speed, but my card will do 850 core. I get artifacts and lockups at even 1125 mhz ram speed. Are there any tweaks for GDDR5 voltage?
No voltage increase for ram for now unless someone comes up with a vmod. Try putting your core back to stock. And then overclocking your ram again. Get some looped benchmark for easy screening and run it. Try 1100 ram and note the fps score. Then try 1150, note the score. Keep doing it until you see no more frames per second increase, then back off the ram a little. THat will probably be the max your ram can run reliably. Then start overclocking the core and adjust voltage accordingly.
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