Yes, but with your temps you should only lose 1 to 2 bins only. 1 bin = 15 mhz.

Sajin
Yes, but with your temps you should only lose 1 to 2 bins only. 1 bin = 15 mhz.

This is the problem with my card, the temperature throttle is extremely aggressive. Even at 45C I can start to drop clocks. What is the normal range for GPU boost temperature throttling? I had one card that would not start throttling until 64-70C yet my current card will throttle aggressively at 50C.  Why is that? Is that silicone lottery or something else? Will experiment some more with fixed voltage. 
 
P.S. Are 3D Mark Timespy/Firestrike reliable tests for stable overclock's or do they tend to show instability too early? I generally pass Heaven with the same clocks that crash in 3D Mark. I know a lot of cards can struggle with those tests...
 
P.S 2 With the fixed voltage and 2 bin drop should it be clocks only? I was dropping voltage too. 

With locked voltage @ 1.093V GPU boost takes complete control over the card at 53C and throttles heavily down to 1.0V. 

I dropped 15 mhz myself at 40c, but didn't lose any voltage. True thermal throttling doesn't occur until 89c. Dynamic adjustments isn't thermal throttling. Not sure why your current card dynamically adjusts so aggressively compared to your other card.

No, for true stability testing you'll need to test your overclocks in each application you plan to use.

I believe so, but i'll have to check it out again myself.

Sajin
I dropped 15 mhz myself at 40c, but didn't lose any voltage. True thermal throttling doesn't occur until 89c. Dynamic adjustments isn't thermal throttling. Not sure why your current card dynamically adjusts so aggressively compared to your other card.

No, for true stability testing you'll need to test your overclocks in each application you plan to use.

I believe so, but i'll have to check it out again myself.

With fixed voltage Timespy had the card dropping into stock boost speeds (under 1V - 1965Mhz). I suppose it's possible the card went into a safe mode from a failed overclock. Will have to test again. I find it unusual the card is adjusting at such low temps. It's like the safety mechanism is far too aggressive. It will usually drop me down to 1.030V at 47-48C. 

Made the card lose 2 bins by slowing the rad fans down, and still didn't drop any voltage...
 

If your power limit = 1 when running time spy it will cause your voltage to fall.

Sajin
Made the card lose 2 bins by slowing the rad fans down, and still didn't drop any voltage...
 

What program did you stress the GPU with? Will test again later and post back. 

Graphite8five

Sajin
Made the card lose 2 bins by slowing the rad fans down, and still didn't drop any voltage...
 

What program did you stress the GPU with? Will test again later and post back. 

Heaven 4.0.

Time spy extreme runs... 
 
Left hits power limit. Right doesn't hit the power limit. =)