News Acer's liquid cooled GPU loser - custom GeForce RTX 4090 hotter and louder than air-cooled rivals

[Admin]

Acer's Predator Orion X prebuilt features a liquid cooled 4090 that doesn't require an external radiator, but it's not great.

Acer's liquid cooled GPU loser - custom GeForce RTX 4090 hotter and louder than air-cooled rivals : Read more

 

[atomicWAR]

Wow they really didn't ACE the test did they? Why even bother with those temps.

 

[TechLurker]

I think I've seen this cooler used as the core of similar hybrid AIO GPU coolers. It's just that it's seems to be rather poorly designed for the 4090 compared to past versions.

 

[edzieba]

Well, part of the problem is certainly that a 270mm radiator just isn't enough to cool an RTX 4090, which is a 450-watt GPU. However, MSI's Suprim Liquid X model uses just a 240mm radiator, so clearly there's something else at play.

Why would you make such a claim, and them immediately prove your own claim is complete nonsense with the very next sentence?

 

[Eximo]

Well, I think we would need all the measurements, fin density, material choices, liquid volume, flow rate to compare a "270mm" '116mm x 270mm' to a 120mm x 240mm radiator.

From the KitGuru article they have roughly the same surface area, but the pump is in the radiator, and there seems to be a chunk missing that is used for the heat transfer from the GPU so I think overall surface area is smaller. Pump performance is probably not ideal, and this is a very restricted radiator. Typically one side of an AIO radiator is in open air. In this design, one side is up against the GPU and the other has the fans as intake.

So I would assume they would have gone for a low fin density vs the typical higher fin density in a typical 240mm radiator. Both direct heating from the coolant and indirect heating from the PCB and other components vs a dual slot card with an entirely separate radiator being able to be in the open air. So right there you have more area.