User from the Chiphell forums has spotted an interesting Radeon RX 6900 XT over in China. The Big Navi graphics card, forms part of a pre-built gaming PC on Tmall, features an exterior that's very similar to AMD's reference design, but with added liquid cooling.
The merchant listed the graphics card as the AMD Radeon RX 6900 XT LC, claiming that it's a special edition SKU. The "LC" likely stands for liquid cooling. Although the seller didn't mention the manufacturer, he did claim that this variant offers 10% higher performance than your typical Radeon RX 6900 XT. The statement lends credence to the suspicion that this liquid-cooled Radeon RX 6900 XT could be leveraging the Navi 21 XTXH silicon that has been specially binned for high clock rates.
The RDNA 2 graphics card's shroud exhibits two sleek, aluminium plates on both sides, implying that this is probably a strict liquid-cooled design rather than one of those hybrid setups that AMD's partners are so fond of. The illuminated Radeon logo still hands on the side, but it's accompanied by what appears to be a RGB LED bar for added eye candy.
The single 120mm AIO radiator certainly raises an eyebrow, though. Graphics card vendors have released the custom Radeon RX 6900 XT models with 240mm and 360mm radiators. Furthermore, the The Radeon RX 6900 XT is a 300W graphics card so we doubt the Radeon-branded 120mm radiator will suffice. The cooling solution will probably have to work hard to keep the graphics card's temperatures under control and may end up being very noisy.
Whether the AMD Radeon RX 6900 XT LC is employing the Navi 21 XTXH or not, the graphics card only commands a pair of 8-pin PCIe power connectors. A 700W power supply is still the minimum capacity recommended to feed the RDNA 2 graphics card.
The jury is still out on whether we'll see the Radeon RX 6800 XT LC outside of the Asian market. Nevertheless, the odds are that this SKU could be exclusive to OEMs or system integrators.
Alphacool's new Eiswolfs are 360mm only.
It should work ok... 120mm rad isn't big but it should have enough surface area to keep the card cool enough that you can run it faster than most aib cooling setups aside from the absolute top tier ones. Of course only some real testing will show whether or not that's true.
And sure enough, some users have noted their rooms get rather warm with these 3080s and 3090s...
"Don't you guys/gals have A/C?"
So theoretically that same 120mm aio could take a 350w GPU without any throttling
Yes, it will work. Remember AMD's own R9 fury Back then?? It had 275W TDP and came with a 120mm liquid cooler. 6900XT is 300W, not an issue.