on board. Radeon HD Radeon HD series. Partial listing of Radeon HD branded models Radeon HD 3650 1GB GDDR2 PCI Express Radeon HD 4870 X2 Radeon HD 6770 XOC Sound cards Monster Sound The Diamond Monster Sound gaming sound card series was the first sound card to have its own on-board processor to handle audio operations. The Monster Sound cards were the first to support hardware mixing acceleration with Microsoft's new DirectSound and DirectSound3D audio APIs. Most, if not all, also supported Aureal's burgeoning A3D API. The original Monster Sound card was distinct in this regard, but also controversial because it possessed poor DOS game compatibility which was still critical at the time. DOS game audio was only functional within a Windows 95 DOS box. It came equipped with a 2MB AdMOS MIDI daughterboard. The Monster Sound M80 was similar to the original Monster Sound, but lacked 4 speaker support. It also had a reduced quality AdMOS MIDI daughterboard (1MB). Monster Sound MX200 had excellent General MIDI quality because of the high quality patch set (licensed from Roland) it was equipped with on its 4MB Dream daughtercard. Otherwise it was technically identical to the original Monster Sound. The Diamond Monster Sound MX300 was based on the Vortex2 audio ASIC from Aureal Semiconductor. It was a substantial step forward in gaming audio, with impressive 3D audio positioning and other effects. It utilized the then state-of-the-art Aureal A3D 2.0 3D audio API. Monster Sound MX400 was advertised as being one of the first sound cards with hardware MP3 decoding acceleration. This was a redundant feature because the central CPUs in PCs at the time were more than capable of handling MP3 playback. It was also somewhat complicated to make use of the MP3 acceleration because special software was needed to use it. The Vortex2-equipped MX300 was a superior card for 3D audio. Aureal had gone into bankruptcy and was dissolved, so their last generation of chips were never released. Diamond instead used ESS's less powerful chips to continue the line. The MX400 was the last of the Monster Sound cards. Diamond Monster Sound PCI Diamond Monster Sound M80 PCI Diamond Monster Sound MX100 PCI Diamond Monster Sound MX200 PCI Diamond Monster Sound MX300 Aureal Vortex2 PCI Diamond Monster Sound MX400 ESS Canyon3D PCI Sonic Impact The Sonic Impact was the value-oriented sound card line from Diamond. Whereas the MonsterSound lineup was targeted