But Clarkdale’s HD Graphics core goes a few steps further by offering dual video decode streams for picture-in-picture, dual simultaneous HDMI outputs (though we haven’t yet seen any motherboards exposing this yet), DisplayPort audio (also recently enabled on ATI’s Radeon HD 5000-series discrete boards), and lossless Dolby TrueHD/DTS-HD Master Audio bitstreaming to compatible stereo receivers.
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The most accessible feature for most home theater enthusiasts is probably going to be the ability to bitstream high-def audio formats. Intel gave us a beta build of CyberLink’s PowerDVD 9 Ultra with preliminary support for H55/H57’s protected audio/video path, enabled through the chipset’s Manageability Engine. We’ve had bad luck with Onkyo’s TX-SR507 in the past, so we fired up our 24-bit/96 kHz test disc with a bit of trepidation. But the hardware/software combination worked like a charm and the receiver was able to decode the TrueHD signal without a problem…well, almost. We did run into an issue where the system would lock up completely after four or five minutes of playback.
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