TechPowerUp posted a review on the ASUS R9 270X DC II TOP 2 GB
A quote from the article:
The ASUS R9 270X DC II TOP comes overclocked out of the box and features the well known ASUS Direct CU cooler. This results in excellent temperatures and very low idle noise levels. During gaming the card ends up a bit noisier though. With a price of $210 it's just marginally more expensive than the cheapest R9 270X on the market.ASUS R9 270X DC II TOP 2 GB @ techPowerUp