Just replaced my heavily used Ubuntu HTPC with a 6 watt AppleTV 2. Both run XBMC.

Specs of the old, silent HTPC:

  • Intel Core 2 Duo E4300 1.8GHz w/2MB Cache
  • Intel DQ965GF motherboard with passive chipset heatsinks
  • Scythe Ninja passive CPU heatsink
  • 4GB (2x 2GB DIMMS) ADATA DDRII 800 MHz memory
  • 512 MB MSI N210-MD512H GeForce 210 PCIe 2.0 passive video card
  • 40 GB Kingston SSDNOW V-series (Intel rebranded) SATA SSD
  • 18x DL DVD+-RW Optiarc Ad-7170S 2MB Cache SATA optical drive
  • Antec Sonata case
  • Dual 120mm Yate Loon case fans
  • Seasonic 330W power supply
  • Ubuntu 10.04 AMD64 with XBMC

Video is just as smooth on the AppleTV as on the HTPC.