The Radeon R700 is the engineering codename for a graphics processing unit series developed by Advanced Micro Devices under the ATI brand name.

The free and open-source driver requires Linux kernel 3.10 in combination with Mesa 9.1 (exposed via the widely adopted VDPAU)[8]), offering full hardware MPEG-2, H.264/MPEG-4 AVC and VC-1 decoding and the support for dual video streams, the Advanced Video Processor (AVP) also saw an upgrade with DVD upscaling capability and dynamic contrast feature.

Another variant, the Radeon HD 4830 was updated on October 23, 2008, featuring the RV770 LE GPU with a 256-bit GDDR3 memory interface, and 640 shader processors.

A minor update was introduced on April 2, 2009 with the launch of Radeon HD 4890 graphics cards based on the RV790 GPU.

Featuring an improved design with decoupling capacitors to reduce signal noise,[10] altered ASIC power distribution and re-timed the whole GPU chip, which resulted in a slight increase in die size but overall much better stability at high clock rates and a higher default clock.

On August 18, 2009, AMD released a stripped down variant of the RV790 GPU called the RV790GT that is used by the Radeon HD 4860 which is now available in all markets.

The Radeon HD 4770, is based on the RV740 GPU, packs 826 million transistors and being produced on the latest 40 nm process.

All variants are based on the RV730 GPU, packing 514 million transistors and being produced on a 55 nm process.

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

This may be different for the AMD FirePro brand, which is based on identical hardware but features OpenGL-certified graphics device drivers.

The Radeon HD 4000 series has been transitioned to legacy support, where drivers will be updated only to fix bugs instead of being optimized for new applications.

[34] The free and open-source "Radeon" graphics device drivers are not reverse engineered, but based on documentation released by AMD.