- Oct 4, 2002
Hmm, I'm not sure there is a thermal throttle point. I've watched my card quite a bit and I do not throttle at exactly 70c or 75c but around there I may hit the TDP wall and throttle from that. It would be a thermal throttle point if the moment I hit that temp it throttled but it doesn't for me. It seems more based on TDP for me.
There's definitely a throttle point at 70C on my ref 980.
Running the "no limits" BIOS from zoson here, I can switch my fan speeds back and forth to let temps go above and below 70C and voltages and core speed both drop a tick when it exceeds 70C. There's a bit of hysteresis, so it doesn't happen immediately.
There's a bunch of temperature-based throttle points, actually. With that BIOS and voltage and power limit sliders maxed out and core/mem at +120/+450, when I start from cold (<40C) and run something 3D, core spikes to 1651 and voltage spikes to 1.275V in Afterburner. As expected, driver crashes after about a half second. Considering at normal operating temps (70-75C) it boosts to 1500, there's definitely some significant throttling going on.
Gah, really need someone with some BIOS smarts to make a boost-free, throttle-free BIOS.