Asus has developed a new video card design dubbed Dark Knight to deliver extreme cooling and 109% performance.
The new Asus cards are comprised of the EAH4870 DK and EN9800GTX+ DK Series.
These ASUS designed graphics cards will come equipped with the Dark Knight Fansink that delivers extreme cooling and low noise-levels—greatly enhancing gaming enjoyment.
The inclusion of the EMI Shield, DIP Spring Chokes, LF PAK MOS, and Japan-made Solid Capacitors will allow users extreme performance and peace of mind at the same time; and furthermore, users will enjoy up to 9% performance improvements for gaming experiences with the ASUS EAH4870 DK TOP and EN9800GTX+ DK TOP.

The Asus Dark Knight fansink is equipped with 4 heatpipes, a large heatsink surface area, and is made of aluminum alloy to deliver extreme cooling while retaining operating levels at only 32dB—almost imperceptible in a quiet room—catering to users who require maximum cooling without excessive fan rotation noise.
Via this Asus announcement. Find the newest Graphics Cards on NewEgg.