anyone know more on this info ? "In addition, our expert Igor Wallossek has some insights into the GeForce GTX 970 and 980's power draw as he found micro-spikes and load scenarios that draw significantly more than the TDP these cards are rated for." info from http://www.tomshardware.com/reviews/nvidia-geforce-gtx-980-970-maxwell,3941-16.html
I wouldn't really worry about it as long as the temps are good and cards aren't failing as a result. Making such a claim as THG is without any evidence of such is pretty meaningless. I'd expect to see figures and a video recording showing these "voltage spikes".
Most cards have these spikes, it's just being blown out of proportion with the 9 series as people don't believe the energy efficiency hype.
Its been a while from when I read that article, but I thought they were talking current spikes, meaning it draws more current and they were trying to say it not as good or not better than 7xx series . 9xx is very dynamic in how much it pulls so avg is very good but with high loads it does go up .
There is no graph showing what spikes exactly. They have equipment good enough to do proper tests, but they did just lame excuse of analysis. http://www.tomshardware.com/reviews/nvidia-geforce-gtx-980-970-maxwell,3941-11.html Should have measured and show in one graph Voltage and Current for: Power connectors, Output from memory VRMs, Outputs from GPU VRMs. That way one can decide if it is harmful or not. Their total power consumption goes up to 250W at times which is just fine. If spiking was actually Voltage spiking from VRMs hitting GPU/Memories, I would worry. But they did not do such kind of analysis.
