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Temperature results
In terms of temperatures, the Accelero Hybrid III-140 makes a huge difference – reducing the max temperature by 45 degrees. This was with the radiator fan using the ‘standard' fan curve as set by the motherboard's EFI, so with further tuning (at the expense of noise levels) we could even see better performance.
Core frequency
The Accelero Hybrid III-140 also helps the GTX 1080 keep its clock speed high. Out-of-the-box, with its stock cooler, the GTX 1080 boosted as high as 1860 MHz but settled at 1771 MHz after a few runs of 3DMark's stress test.
When we installed the Arctic cooler, though, the card settled at 1873 MHz – higher than even the max frequency we saw with the stock Founders Edition cooler. So just by changing the cooler – without adjusting any frequencies – the GTX 1080 was running over 100 MHz faster, giving a nice bump in performance.
Acoustics
The loudest thing about the Accelero Hybrid III-140 is the pump. With the radiator fan following the ‘standard' PWM preset, it was barely audible – the pump is louder and whirrs away at a constant level. That being said, it is not intrusive – and is still markedly quieter than the Founders Edition cooler under load. In a case (I used an open-air bench) it would be drowned out by a couple of fans.
Great performance, but a shroud for the front would make it a lot more visually appealing.
Good idea – I agree the visuals are a bit lacking
Very nice results for sure with this cooler. It is to bad Nvidia gimped the cards bios so much it would be great to see those 2.5Ghz clocks they were talking about when they released the 10 series. I guess we won’t see that until someone manages to decrypt and unlock the Bios on the 10 series. But at this stage of the game if it hasn’t happened yet it most likely won’t because in a few months Nvidia will release the rebranded 20 series and no one will care about unlocking the 10 series anymore.
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This is really a great aftermarket hybrid cooler for reference graphics cards.
This is a CLC (closed loop circuit), not an AIO. Please correct accordingly.
Am I the only one concerned that the RAM on the front is not addressed by any heatsinks?
The ram is cooled by the backplate. Which makes sense because the temps actually conduct through the pcb better than the plastic casing they are in.
Same difference. With a few exceptions (basically swiftech and ekwb) all aio are clc’s
I went ahead and added this beast to my 1080 FE and I so far I can’t get the GPU over 45 degrees c. Very nice. I added copper heatsinks to the front of RAM and touched them during 3dmark loop and they were very hot! Note that I do oc both GPU and memory. Glad I added the heatsinks