Sapphire Radeon HD 5830 1GB Review

HD Audio and Video

One of the main drawing points of the lower-end cards in the HD 5000 series lineup is the fact that they are literally unmatched when it comes to HTPC use. Granted, the GT 210, 220 and 240 cards from NVIDIA are the first cards from the green side of the pond to receive native audio processing without having to resort to a clunky S/PDIF cable but their HD audio compatibility is limited to non-PAP (Protected Audio Path) implementations. Meanwhile, the HD 5000 series features not only support for native HDMI audio support with compatibility with AC3, 8-channel LPCM and DTS among others but it also introduces PAP support for bitstream output of Dolby True HD, DTS HD Master Audio, AAC and Dolby AC-3. This allows high-end audio for 7.1 sources to be passed unhindered from your computer onto your receiver and is a huge step up from what the competition offers.

As for HD video, you get everything that you would expect from and ATI card: compatibility with HDMI 1.3 formats, an option for a DisplayPort connector and full support for ATI’s UVD 2.2.


Enhanced DVD Upscaling & Dynamic Contrast


While there are plenty of us who will use HD signals through the HD5000-series of cards, whether we like it or not we will still be outputting lower definition signals to our wonderful new HDTV every now and then. In these cases, a standard 480i picture will look absolutely horrible if it is scaled up to fit on a high definition 1080P TV so ATI provides the Avivo HD upscaling option in their drivers. What this does is take the low resolution signal and clean it up so to speak so it looks better when displayed on a high definition screen.


Another interesting feature ATI has packed into their drivers is the Dynamic Contrast Adjustment. Personally, I more often than not adjust the contrast manually based on the application since the values from one game or movie to the next can vary a lot. ATI has taken the guesswork and thrown it out the window by providing a post-processing algorithm which will automatically (and smoothly) adjust the contrast ratio in real time.

While there are other benefits of using the 5000-series for audio and video pass-through for your home theater, we will stop here and get on with the rest of this review.