Hot on the heels of last month's Radeon HD 4890 release which set a new performance record for ATI as their fastest single GPU yet, the company has another new graphics card for us today, this time targeting the sub-$100 market.

The new Radeon HD 4770 is the world's first 40nm graphics processing unit, and although it's not designed to set any speed records like the flagship 4890, the 4770 aims to deliver the best possible value in a neat cost-effective package.

It has become common practice for both ATI and Nvidia to make their initial migration to a new design process using a mid-range or even low-end GPU, allowing time for refinement before they push it to high-performance parts. That said, the Radeon HD 4770 is far from a simple affair as the GPU has a transistor count of 826 million, or just 14% less than the Radeon HD 4890, ATI's most complex GPU yet.