What are your real GPU clock speeds?
What are your real GPU clock speeds?
Alright, something unusual is happening, so I have a 980 Ti G1 gaming rig. Right out of the box my clock speeds are 1366Mhz but they drop to 1354Mhz when temperatures reach around 67°C. I noticed that increasing the voltage on my card brings it back up to 1366Mhz, and even going higher with more voltage pushes it even further! I’ve tried testing how much I can push the card and reached a 40mV setup that still hits 1392Mhz without changing anything in the core or memory—only adjusting the voltage. How is that possible?
Does GPU Boost depend on the amount of power headroom the card has?
That said, I overclocked my card to 1508Mhz on the Core and 3947 with just 15mV, but adding more up to 60mV still raises core speeds to 1546Mhz!
I’m not sure why the card throttles a few MHz when it hits certain temperatures or if GPU Boost is behaving oddly. I was wondering if there’s a way to turn off GPU Boost and manually control the clock speed, or if a custom BIOS is needed?
The BIOS contains a voltage table where each clock speed corresponds to a distinct voltage range. Increasing the voltage makes the system select a higher clock bin on the table. Adjusting the clock offset moves each clock bin into a lower voltage slot. This is why combining core offset, voltage, and boost settings can result in progressively faster clock speeds. A tailored BIOS is needed to disable boost and enforce a fixed clock speed and voltage.
The BIOS contains a voltage table where each clock speed corresponds to a specific voltage range. Increasing the voltage selects a higher clock bin, while adjusting the clock offset moves each bin into a lower voltage slot. This explains why combining core offset with voltage leads to progressively faster clock speeds. A custom BIOS is needed to disable boost and set a fixed clock speed and voltage.