The Northern Islands series is a family of GPUs developed by Advanced Micro Devices (AMD) forming part of its Radeon-brand, based on the 40 nm process.

The AMD Eyefinity-branded on-die display controllers were introduced in September 2009 in the Radeon HD 5000 series and have been present in all products since.

[4] Unified Video Decoder (UVD3) is present on the die of all products and supported by AMD Catalyst and by the free and open-source graphics device driver.

They have also been upgraded to support the new technologies found in the Northern Islands GPUs such as HDMI 1.4a, UVD3, and stereoscopic 3D.

[9] This family includes three different high-end products all based on TeraScale 3 (VLIW4) Codenamed Cayman, the Radeon HD 6900 series was expected to be released on November 12, 2010.

Reducing the stream processors to VLIW4 allows AMD to save on transistors for each individual SP and add more overall in the future.

Launched alongside the Radeon HD 6900 series, PowerTune aimed to maximize the performance of GPUs within specified power envelopes.

The following table shows features of AMD/ATI's GPUs (see also: List of AMD graphics processing units).