AMD has announced the first factory over clocked air cooled GPU to reach the 1 GHz mark, the ATI Radeon HD 4890. While this mark may have been reached by overclockers using other graphics processors, the HD 4890 would not need any complex cooling solutions and works fine with the air cooling unit that comes standard. Also, since overclocking voids the warranty (even if it is hard to detect), the HD 4890's warranty should prove beneficial.
Image from HOTHARDWARE
Here is an overview of the features:
Tear through the latest games with seamless frame rates and go beyond HD1 with the power of the ATI Radeon HD 4890 graphics processing unit (GPU). Building on the strength of the ATI Radeon 4800 series award-winning architecture, this GPU stands out from the rest with massive graphics processing muscle. Take ultimate control over your game and crank it up with scalable performance. Go ahead, max out the settings and put the ATI Radeon HD 4890 through its paces.
Click here to learn more about the device's specifications.
Video showcasing the Radeon HD 4890: