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7950 boost question

Dec 16, 2012
170 (0.09/day)
Processor AMD Ryzen R5 1600
Motherboard Aorus x370 Gaming 5
Cooling ID Cooling 240l
Memory G Skill DDR4 3000 RGB
Video Card(s) GTX 1070 Gamerock
Storage 2TB Seagate Barracuda, samsung evo ssd
Display(s) Samsung S27S950d 120Hz
Case Cooler Master Mastercase 5
Power Supply FSP Aurum 750w
Software Windows 10 64bit
I have the 7950 boost edition by sapphire and I have some question about it. I can't exactly grasp how the boost on this card works. I know for a fact that it is not the same way as how Nvidia boost works.

Mine is clocked at default 925mhz according to Gpu-z (i know it should be 850) and vddc on it says it needs 1.2v to reach that level and at idle it is 0.9v. I cant tell if it is because of the powertune setting as it is all the way turned up or what but I think that is still pretty high in my opinion.

I tried overclocking it to 1000/1375 pretty decent gains and vddc was at 1.21. Tried clocking it to 1150/1400 @1.2v or default gains were good pretty stable then I saw an artifact while I ran Heaven so I clock it 1100/1400 and all seems good. Temps for everything did not reach 70C accdng to gpuz.

Should I just clock it to the highest clock I could get it stable? I think all that power is wasted at nothing if I just leave it at default or should I flash this thing with a better more efficient bios?