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Question about voltage curve on new pascal cards

post #1 of 3
Thread Starter 
I was watching this video, and a few others
I'm so confused when he says, and its is collaborated by other videos, they say the same thing, that when under manual tuning the voltage curve you would want higher clocks on a lower voltage, and a lower core for higher voltage, what the hell are they talking about when he refers to this, and why. Unless I'm mistaken or not understanding him, I always though the higher your core clock the higher the voltage you'll need to overclock. Why would he say you want higher clock on the lower voltage levels ? Yeah the lower the voltage the cooler your card, but I'm so confused by this statement, and it was also said in this video, and even referred to as backwards.
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(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core-i7 8700k ASRock Z370 Extreme 4 Zotac Nvidia GTX 1080 mini Corsair Dominator Platinum 16GB DDR4 DRAM 3200MHz 
Hard DriveCoolingOSMonitor
MyDigital BP5e CoolerMaster MasterAir MA410P windows 10 x64 pro Viewsonic xg2703-gs 
KeyboardPowerCaseMouse
Masterkeys PRO S RGB Enermax MaxTytan 1050 Watt Test Bench Logitech G703 
Mouse PadAudio
Logitech PowerPlay Logitech G533 
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Reply
post #2 of 3
The curve works by adjusting frequency for a voltage value. You can do the whole curve by selecting a frequency change for each voltage point or work around a single voltage point by using a single point ("L" option in AB). IIRC AB does not offer any adjustments below 0.8V although they are doable and just like there is usually an upper voltage limit (typically 1.093V), there is also a lower voltage limit.
post #3 of 3
Cards are TDP limited, lower voltage means less power usage, meaning higher achieved overclocks.

However you can only lower the voltages on good quality chips otherwise wont be stable.

Some cards this wont matter as it seems different vendors have set different TDP limits, e.g. on my gamerock premium if I try to use 1.09v and the card is under max load it will throttle hitting the TDP limit, but someone else with a zotac amp extreme can easily hold 1.09v at only 60% tdp usage due to much higher TDP limit in bios.
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