Recently picked up A Sapphire 5770 1GB (the default one) and am very, very pleased with its performance as opposed to my old 4850 (was ridiculously loud and didn't look anywhere near as sharp).
I'm having some issues with the audio though.
When I installed the 10.1 CCC Suite I could only set the HDMI output in playback devices to stereo speakers and my only options for settings for audio quality were 32/16, 44.1/16, and 48/16.
I added the Realtek Drivers (2.39) and that improved the playback settings. I could now set my speakers to Quadrophonic, 5.1, and 7.1 as well and could set the quality to 32/16, 44.1/16, 48/16, 88.2/16, 96/16, 44.1/24, 48/24, and 96/24.
With the release of the new TMT3 Beta, I went back to the ATI Drivers as others were saying that, with the .170 Beta, TMT3 was automatically switching channels and converting to LPCM without any loss in quality.
When I attempted to watch 300 (original Japanese Blu-Ray release), I could only run the lower-res audio. If I attempted to run the LPCM or Dolby-TrueHD tracks, it would begin to stutter and eventually crash. At one point I also got a bombesque high-pitched shriek from the system. The output was only stereo.
Here is my system:
- Intel DG45ID
- Intel Q6600 (SLACR Revision)
- 4GB A DATA DD2 800 SDRAM
- Windows 7 RC 64-Bit (still searching for a well-priced Ultimate 64 here)
- AnyDVD HD
- Sapphire Radeon HD 5770 1GB GDDR5 (no frills version)
- Denon A7100 Pre/Pro
- Panasonic TH-AE500 Projector
If there is any potentially relevant info that I have left out, let me know and I'll add it. I skimmed through the thread for a similar issue, but didn't see anything, but as I was going through a lot of information quickly, it's quite possible I missed something.
At this point I have reinstalled the Realtek drivers and reset TMT3 to mix the TrueHD/DTS HD-MA/LPCM tracks to DTS for the sake of simplicity of playback, but if it is possible to keep this thing set to stereo and have TMT3 processing the TrueHD and DTS HD-MA tracks and outputting full res LPCM, then I would immensely prefer it.