Even at +100, we are over the TDP as you will see. However, after this point, the GPU clock would throttle lower because it far exceeded the TDP. We played with several different offset settings and found that we had positive performance results all the way up to +100 on the offset setting. It isn’t going to ramp the clock up unless there is headroom to do it, power, temperature, it all goes into the equation. You have to keep this in mind, GPU Boost is in control at all times, no matter what.
Core ClockĪdjusting the Core Clock is rather simple, by setting an offset we can add onto the GPU Boost clock. We actually lowered the fan speed to 80% and this overclock worked just fine and much quieter with temps in the upper 70’s. 100% fan speed wasn’t required to achieve the overclock we are going to show, but for our testing, we wanted to just make sure. We left it on sync and manually increased the fan speed to 100% just to make sure we were getting the best overclock we can on air. We also have control over the fans, you can actually adjust each fan separately, or sync them. The Temp Limit can also be increased to 90.
In MSI Afterburner we can turn the Power Limit up to 115%, so that lets us exceed the TDP a bit. You’ll see that the video card hits the maximum TDP, and goes over it anyway without even touching the voltage, so trying to manipulate it just makes the situation worse. The video card already manages voltage thanks to GPU Boost, and raising the Core Voltage manually higher put us up against the TDP limit very quickly which actually hurts our overclocking potential. It does allow Core Voltage control, up to 100%, but we found that raising the voltage wasn’t needed. Overclocking with the latest beta of MSI Afterburner worked well on our video card.
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