The Most Comprehensive AMD Radeon Linux Graphics Comparison

Radeon HD 5450: It took a few months for the Radeon HD 5000 "Evergreen" series support to arrive, but eventually it came in August of 2010 and was quick to evolve. For reference, the Radeon HD 5000 series was originally introduced in September of 2009, so the accelerated open-source support took about one year's time. With a modern Linux kernel and Mesa, the level of support is comparable to that of the Radeon HD 2000/3000/4000 series. The classic Mesa and Gallium3D support is an extension of the R600 driver. The Radeon HD 5450 uses the Cedar PRO GPU and this Sapphire Radeon HD 5450 is running at 650MHz and 800MHz for its DDR2 video memory.

Radeon HD 5750: The Radeon HD 5750 is a Juniper PRO part and this pre-release sample was running at 700MHz with a 1150MHz memory for its 1GB of video RAM. When speaking of the Radeon HD 5000 series (and newer) ASICs, one feature currently missing from the open-source DRM driver that is supported on the older hardware is the HDMI audio support. The HDMI audio support for Radeon GPUs originally came by reverse-engineering from a German developer in the community, which was subsequently hired by AMD. John Bridgman has said the HDMI support for Evergreen+ is still clearing legal review and they have not been able to come to a consensus yet, but hopefully with the Linux 3.2 kernel there will be HDMI audio support for these newer chipsets.