Overclocked cards breeze through Battlefield 4’s High quality preset, with average frame rates exceeding 50 at 5760x1080.

Sags in the frame rate over time graph illustrate why averages aren't sufficient for evaluating performance. Even then, though, both overclocked cards maintain more than 40 FPS throughout our benchmark.

We like to call 30 FPS our lowest acceptable average, though this typically depends on the game and minimum frame rates. None of these configurations violate that guideline when we apply Battlefield 4's Ultra quality preset, fortunately.

When we break that chart down into frame rate over time, it indeed appears that 30 FPS is a good average target for this title. The air-cooled card drops to 25 FPS in its stock form, while the overclocked CryoVenom board demonstrates notably higher performance that doesn't fall under 30 FPS.

- Can A Liquid-Cooled Radeon R9 290 Be Affordable?
- CryoVenom R9 290: Meet The Card
- Test Hardware And Benchmark Settings
- Overclocking
- Results: 3DMark
- Results: Tomb Raider And F1 2012
- Results: Arma 3
- Results: Battlefield 4
- Results: Far Cry 3
- Results: Metro: Last Light
- Power, Heat, And Efficiency
- Making A Value Case For Water-Cooling A GPU
Go look at the price of the acrylic/nickel block and the backplate. Assume they're stockpiling the leftover air coolers at some cost and will sell them in the far future for about the cost of stockpiling them.
AMD recently released these to distribution by manufacturing partners, so maybe they can now get them bare. But they couldn't when these were launched, and this is a launch card. Since I don't know the full details of AMD's recent move, I cannot comment further.
In the USA and Canada, MSI and XFX still allow owners of their cards to install aftermarket cooling solutions WITHOUT voiding the original manufacturer's warranty. (Both have supported doing so for many years.) Should the owner of an MSI or XFX card with an aftermarket cooler installed on it ever need service for that card, the original-equipment cooling solution must be reinstalled prior to returning it for service.
XFX offers a 2-year warranty on its regular R9-series cards, and a lifetime warranty on Black Edition cards. Meanwhile, MSI offers a 3-year warranty on all its R9-series cards. So should the owner of an MSI or XFX R9-290/290X card want to use the EK solution mentioned in the article, that owner would still be fully covered by the respective manufacturer's warranty.
Do you have links? I wish I'd known about MSI and XFX's exceptional policies, I would turn to them for more samples!
Actually AMD designs the cards, and TSMC manufactures the GPUs which the distributors, Sapphire included, buy the add their heatsinks and branding to.