ASUS STRIX Gaming GTX 1080 8GB Review
Published by Marc Büchel on 10.11.16Page:
The card
ASUS decided to equip the GeForce GTX 1080 STRIX with a new version of their famous DirectCU cooler. This is actually the third version of it and they decided to come up with a triple fan cooler. In the case of this card you get no less than five heatpipes, one measures six millimeter, two measure eight millimeter and two offer massive ten millimeter diameter. As with the DirectCU II cooler there is no base plate. ASUS actually communicates, that this should help decreasing temperatures even further, since there are less heat transfers. If you have a very close look at the heatpipes, you notice that there are rather large gaps inbetween the pipes. These gaps need to be filled with enough thermal compound. Apart from that this has has uneven cooling as a result, since the layer of thermal compound in the gaps is much thicker than between the GPU and the heatpipe. This actually leads to the point that cooling is not provided to the GPU uniformly, when there is the so called "Direct Touch" approach in place. Apparently this is nothing to worry about, but in countless cooler reviews we noticed, that models with a copper baseplate perform better than others with Direct Touch Heatpipes.
Soldered to the heatpipes you find the fin stack which is being provided with fresh air by three fans, which are being manufactured by Everflow. The fans on the new STRIX Gaming series cards are designed to spin only when the GPU temeprature reaches 55 degrees, which means that in 2D mode they are completeley off. Also, under low loads the fans don't start to spin. Under high-load the noise level is still silent, subjectively speaking.
The ASUS GTX 1080 STRIX Gaming graphics card, or to be precise our sample of
it, allowed a maximum stable overclock to 2'100 MHz
for the GPU and 1'321 MHz on the memory side. We used Furemark V1.11.0 Geeks3D
benchmark with 15 minutes duration. With these clocks we had to feed the GPU
with 1.081 Volts and the memory ran at stock voltages.
A closer look at the PCB shows that ASUS equipped this card with a 10+2+1 phase digital power design. The GPU gets its current from ten phases, two phases take good care of the 8GB of GDDR5X memory and the additional phase is in charge of PLL. Once more, ASUS is using high quality super alloy chokes. Apart from that it's the first time that ASUS has a fully automated production process in place. This means, that the human error can be completely removed from the production line and the individual parts are being mounted on the PCB in always the same, perctly uniform manner.
Checking the voltage regulation chip, we find a digital multi-phase buck controller uP9511P. Apart from that there are two uP01320P, which are most likely taking care of voltage regulation for the memory chips.
The memory chips used are made by Micron and carry the model number 6JA77-D9TXS. They are specified to run at 1'250 MHz (10'000 MHz effective).
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