The little fanless server that could.

===== VIA C3 =====
600mhz VIA Samuel 2 aka 'c3' (Purchased 2006ish)
1GB ram (maxed out)

  * Host bridge: VIA Technologies, Inc. VT8623 [Apollo CLE266]
  * PCI bridge: VIA Technologies, Inc. VT8633 [Apollo Pro266 AGP]
  * FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 80)
  * IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
  * Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 50)
  * Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 74)
  * VGA compatible controller: VIA Technologies, Inc. VT8623 [Apollo CLE266] integrated CastleRock graphics (rev 03)

Performance:
  * dd if=/dev/zero of=/dev/zero count=4096 bs=1024000 => (4.2 GB) copied 115MB/s
  * dd if=/dev/zero of=/tmp/tmp count=8096 bs=8024 => (65 MB) copied, 24.1 MB/s (ST3200822A)
  * ab -n 10000 -c 3 http://donpark.org/ => 550.63 [#/sec] (mean)
  * ab -n 10 http://donpark.org/blog/ => 0.62 [#/sec] (mean)


===== DualCore Atom D510 =====
http://www.frys.com/product/6147609 $80 (purchased May 2011)

  * Host bridge: Intel Corporation N10 Family DMI Bridge (rev 02)
  * VGA compatible controller: Intel Corporation N10 Family Integrated Graphics Controller (rev 02)
  * PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1)
  * ISA bridge: Intel Corporation NM10 Family LPC Controller (rev 01)
  * VGA compatible controller: Intel Corporation N10 Family Integrated Graphics Controller (rev 02)
  * Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)


Installed
  * 2GB RAM (one PC 6400DIMM, one empty slot left)
  * Intel 320 120GB SSD

Kill-a-watt
  * 30W w/o hard drive
  * 31W w/ SSD drive
  * 38W w/ spinning drive

Performance
  * dd if=/dev/zero of=/dev/zero count=4096 bs=1024000 => (4.2 GB) copied 2.1 GB/s
  * dd if=/dev/zero of=/tmp/tmp count=8096 bs=8024 => (65 MB) copied, 198 MB/s

===== raspberry pi =====
Purchased: 2012-Nov

  $ dd if=/dev/zero of=/dev/zero count=4096 bs=1024000
  4194304000 bytes (4.2 GB) copied, 3.3117 s, 1.3 GB/s
  $ dd if=/dev/zero of=/tmp/tmp count=8096 bs=8024
  64962304 bytes (65 MB) copied, 1.40582 s, 46.2 MB/s


===== raspberry pi 3 =====
Purchased: (after release in feb 2016)

  $ dd if=/dev/zero of=/dev/zero count=4096 bs=1024000
  4194304000 bytes (4.2 GB, 3.9 GiB) copied, 3.4779 s, 1.2 GB/s
  $ dd if=/dev/zero of=/tmp/tmp count=8096 bs=8024
  64962304 bytes (65 MB, 62 MiB) copied, 0.526478 s, 123 MB/s

===== pine64 =====
Purchased: 2016-June

  $ dd if=/dev/zero of=/dev/zero count=4096 bs=1024000
  4194304000 bytes (4.2 GB, 3.9 GiB) copied, 1.26456 s, 3.3 GB/s
  $ dd if=/dev/zero of=/tmp/tmp count=8096 bs=8024
  64962304 bytes (65 MB, 62 MiB) copied, 0.18401 s, 353 MB/s