raising the voltage on my graphics card doesn't improve its stability.
raising the voltage on my graphics card doesn't improve its stability.
Hi everybody,
I'm facing a challenge with my MSI GTX 970 Gaming 4G GPU. After using msi afterburner, I've reached an overclock on the core at +230MHz, which gives a clock speed of 1559MHz, and on memory it's around +450MHz for a speed of 3955MHz. I can maintain this stable performance throughout the day and night without needing to raise the voltage. However, pushing beyond these settings by even 1MHz causes instability. I'm trying to boost the voltage to fix these issues, but it doesn't help. MSI afterburner claims it can increase voltage by +87mV, yet even at that maximum, I can't reach higher clocks. I believe that raising the voltage should improve stability at higher speeds, but it seems I've already hit my limit at stock voltage.
Temperature-wise, it's not a problem—even with the air cooler, I'm only at 67°C.
This is what I'm experiencing at my "maximum" overclock.
It appears the situation with Maxwell cards is similar. Their performance isn't constrained by power alone but by their design. Achieving 1500Mhz without raising voltage shows good progress. The most recent overclocking cards for Pascal were Kepler GPUs, which were reworked to support higher clock speeds while using less power.
Eximo:
It seems similar with Maxwell cards, indeed. They aren't restricted by power limits but by their design. If you managed to hit 1500Mhz without raising the voltage, you've performed quite well.
The most recent power/performance overclocking cards were the Kepler GPUs.
For Pascal, they redesigned for higher clocks because they could achieve those speeds with less power.
In short, even if you tried to apply more voltage, the card wouldn't be able to reach faster clock speeds? So it's not just my basic overclocking skills.
Beyond a handful of special GPUs, 1550Mhz is roughly the typical upper limit for Maxwell. Enhanced cooling might push it slightly higher, though the benefits are limited and the cost increases.