Greetings,
so i tried to overclock my 1070 SC, following this video guide:
i pumped power limit to 112%, core voltage to +100%, made a custom fan curve. And i couldn't go further that +75/350 (core/mem), which i found kinda disappointing since i saw many reviews and users getting 100/500+
According to the video, you should avoid hit the power limit.
I didnt checked that when overclocking, so i monitored power and voltage limit during a Overwatch match (Max Settings, 141% Render Scale)
And got this graphs:
(put https) puu.sh/rUxvX/58c24d3dbb.png
As you can see, there is alot of power and voltage limit hits. This overclock was stable, i had 0 artifacts, crashes, freezes or any other problem.
Then i checked Overwatch (Max,141%) and heaven benchmark with stock configuration.
(put https) puu.sh/rUxwp/da3669fd42.jpg
(put https) puu.sh/rUxwy/4cac6531aa.png
To my surprise, the card hits power and voltage limits even on stock.
Later i was playing Doom (Maxed) with overclock and i noticed that doom doesnt hit power limit and when that happens the voltage and clock is always maxed (2000hz/1.081v).
That was a strange result to me, why Doom doesn't hit power limit with overclock and Overwatch does with stock clock.
Then i noticed that Doom has a low GPU usage, about 40~50%, while Overwatch has 80-90%. Consequently Doom has a lower Power usage.
I lowered Overwatch GPU usage by reducing render scale to 100%.
(put https) puu.sh/rUxvW/4637260499.png
And it has similar results to Doom.
It is hitting power limit really a problem? if so, why the card hit power limit with stock clocks? Could that explain why i get a low overclock?
post edited by TheC4rnage - 2016/10/24 17:59:27