Yes, and while an A-series may be powerful enough for a lot of HTPC's, a lot of people expect them to be able to do realtime transcoding. That can require a faster CPU than you get with the A-series, especially if you are expecting it to serve multiple streams across a household.
So teh google no real review/benchmark site using it, 1 off youtube and forum posts don't count. But I did fid this little nugget http://hardforum.com/showthread.php?t=1575096 So apparently it's a horrible buggy turd with schizophrenic artists running the gamut of 8-bit to Pixar level CGI detail at the same time...
Simple, you can repurpose any machine in the last 10 YEARS to be a dumb playback console, hell, you'd be better served with an old Tivo, but if you want to do more then just watch TV you need something more.
If dumb, low power and cheap are what you want then get a $35 Raspberry Pi when they come out http://www.raspberrypi.org/?p=152 For everything else theres the A8-3850 w/ huge fanless block, 4-8Gb of 2.4Ghz ram, an SSD, a Seasonic X series fanless 90% of the time PSU and maybe some super quiet 800 or 1200RPM 120mm fluid bearing fans. I'll still be damn quiet, if not completely silent, just kick the video in from ye olde backup server. Hell get a Gigabyte UD4 mobo and be able to charge your phone off it when it's off as well.
So yes, I'd rather have the PC in the Home Theater instead of just a dumb video console.
Does this count? http://www.newegg.com/Product/Produc...82E16814121430
There is the 6870 Eyefinity6
http://www.newegg.com/Product/Produc...82E16814131447