okay. But i can on msi afterburner for example put the fan speed higher for years without problems, right?
Hello, sorry for the delay (slept yesterday). Yes, you can use MSI AB tool to create any custom FAN curve/profile, or just manually ramp up the fan speeds to your liking, depending on the GPU temp value. 70-80c temp value can be considered as normal when the GPU's load is high while gaming or doing some other tasks.
I cannot say for sure the lifespan of the GPU's fan, as how many years the GPU will work properly, but PowerColor's cooling fan utilizes two-ball bearing technology, which increases the longevity of the fans by up to 4 times. So you should be good to go.
It all depends on the load and usage on the GPU. You told you are getting 79c in gaming ? And what's the fan speed at this particular temp ? How is the airflow inside your ATX cabinet ? How many front and rear intake/exhaust fans are installed on the case ?
Also, make a note that you don't always have to spin the fans when the GPU is in idle mode, while browsing and doing other simple chores. Because your GPU model also has a
FAN STOP 0db technology.
PowerColor calls it as "Mute Fan Technology" which turns off the fan when the GPU temp is below 60℃, hence providing silent gaming during medium and low load while reducing power consumption as well.
What are your FULL PC specs ? Which power supply are you using for this GPU ?