We already wrote that PowerColor is working on a non-reference water cooled HD 4890 as a part of its LCS series, and a week later PowerColor decided to officially announce this water cooled card. PowerColor can now relax, as this is the first and thus far only water cooled HD 4890 that we are aware of, and as far as we could find out, this could easily remain the only one.

The card will end up clocked at 900MHz for the GPU and 1000MHz for 1GB of GDDR5 memory. Of course these clocks are what PowerColor suggests but the card should be able to hit higher clocks if you pair it up with a high performance water cooling kit. The water block comes from EK, and according to PowerColor it should make sure that the GPU has up to 20°C lower temperatures.

The card will, of course, be a quite limited series, and it will no doubt be expensive, but it should also be a fastest HD 4890 on the market as water cooling should provide enough power for this card to go over the magical 1000MHz mark for the GPU clock.

The card should hit retail on April 16th with a suggested price tag of US $339. This is quite a premium, considering that a reference HD 4890 card sell for US $249.99 at Newegg.com, but then again you get the only single slot HD 4890 with a high quality water block.