Date: Wednesday, December 05, 2018
On this page we are now going to look at the default settings of the video card and the real-world GPU frequency in-game. Then we are going to overclock the video card as high as we can.
The base clock is 1515MHz with a boost clock of 1860MHz on this video card. There is 8GB of GDDR6 at 14GHz. The default VDDC is 1.0500V. The GPU temperature hit 67c at default. Our GPU clock testing shows that the in-game GPU clock frequency runs well above the boost clock. It starts off as high as 2010MHz, but then quickly drops down. Within 30 seconds it is operating at its consistent frequency of 1980MHz. Though it drops from time to time to 1965MHz, it is mostly at 1980MHz while gaming.
Therefore, 1980MHz is its starting frequency for overclocking. This is well above the boost clock and almost near the potential for the GPU as a whole. We didn’t think we really had much headroom with the clock speed already so high.
Using MSI Afterburner we discovered this video card has a very low Power Limit potential. We can only take the Power Limit from 100 up to 109%. That is very small and doesn’t leave much headroom to go beyond the video cards TDP. In fact, this overall small Power Limit potential did keep us from achieving as high of an overclock as we think we could have. We feel the GPU on this video card could overclock higher than we achieved here, but that we are mainly being held back by the power limit.
We did discover that we can unlock and increase the Core Voltage. However, this was to our overclocking detriment. Raising the voltage made the GPU clock speed hit the TDP "wall" a lot faster, and the GPU clock speed throttled down to the same frequency without over voltage. For example, with maximum voltage the GPU clock speed started out as high as 2085MHz. But within 15 seconds it dropped to 2070MHz. Then within a minute and a half of that it finally dropped down to 2055MHz where it stayed for the duration of gaming. Over voltage only gave us a slight clock speed boost in that first 2 minutes of gaming, otherwise after that it was always at 2055MHz. Therefore, we just decided to forgo the voltage altogether and just start and end at 2055MHz.
That is what our overclock ended up being, no voltage applied and a Core Clock of +50 and Memory Clock of +1000 with Fan Speeds at 100% and Power Limit at 109%. This brings the boost clock up to 1910MHz and the memory is at 16GHz.
This ends up resulting in a consistent clock speed of 2055MHz while gaming. You can see it starts shortly at 2085MHz, then goes down to 2070MHz and then settles at 2055MHz. It drops quicker without the extra voltage, the extra voltage only prolonged that by a minute or so. 2055MHz is just simply what this GPU could sustain for long periods of gaming no matter what, and we feel that is mostly down to the board power limits. GPU Temp was 52c at 100% fan speed.
Our final overclock though is 2055MHz GPU / 16GHz memory which we will use in this review.