But couldn’t make the design effective
Earlier this year, Acer showed an interesting development: a GeForce RTX 4090 video card with liquid cooling, but without an external radiator and pump. It turned out that Acer failed to make such a design effective.
The video card is not available at retail, but is available as part of the finished Predator Orion-X PC. Judging by KitGuru's tests, such a PC with such a video card is hardly worth buying.
The Acer cooler turned out to be the most unsuccessful of all that the authors tested on the RTX 4090. Firstly, the card turned out to be the noisiest, and secondly, the hottest. Moreover, if the GPU temperature, although the highest, is not much higher than that of the same Asus RTX TUF, then the memory temperature is immediately much higher than that of any other RTX 4090, and in absolute terms is too high (96 degrees).
As a result, the card operates at relatively low frequencies, is very noisy and suffers from throttling.