Omni 27 Performance

I measured the power draw of the Omni 27 using a Kill-A-Watt consumption meter. At idle, the system draw averaged around 49 watts. I used Prime 95 and OCCT's PSU stress tool to generate a full load on the system which pulled 131 watts. Compared to the smaller TouchSmart 520, this system draws around 10-15 watts less at idle and nearly the same at full load.

This is impressive as the display on the Omni is larger and the processor is clocked 200MHz higher. We can thank Ivy Bridge for this. The system remained virtually silent throughout stress testing, with the cooling fan only spinning up slightly under full load.

Benchmarks Results

Synthetic Tests Omni 27 TouchSmart 520 IdeaCentre K330
3DMark 06
3DMark Score 7489 3DMarks 4095 3DMarks 21840 3DMarks
PCMark Vantage
PCMark Suite 12038 PCMarks 9105 PCMarks 10904 PCMarks

Application Tests Omni 27 TouchSmart 520 IdeaCentre K330
iTunes Encoding Test 58 sec 01 min 1 sec 01 min 2 sec
File Transfer Test
Small files 50.8 sec 1 min 28 sec 1 min 4 sec
Large file 33.6 sec 52 sec 38 sec

The iTunes encoding tests consist of converting 14 MP3s (119MB) to 128Kbps ACC files and measuring the operation's duration in seconds. For the file transfer test, we measure how long it takes to copy two sets of files from one location to another on the same hard drive. On the small files test we transfer 557 MP3s, totaling 2.56GB. For the large file, these same MP3s were zipped into a single file measuring 2.52GB.

Gaming Performance Omni 27 TouchSmart 520 IdeaCentre K330
Far Cry 2
1024x768 Medium Quality 47.93 fps 24.0 fps --
1920x1080 Resolution, High Quality 27.42 fps 13.6 fps 58.9 fps
StarCraft 2
1024x768 Medium Quality 62.65 fps 39.0 fps --
1920x1080, High Quality 30.46 fps 23.1 fps 60.8 fps

HP Omni 27 All-In-One Specs

  • 27" multi-touch 1920 x 1080 display
  • Intel Core i5-3550S (3.0GHz, quad-core)
  • 8GB DDR3-1600 RAM
  • Radeon HD 6550A graphics
  • 2TB Hitachi 7200 RPM hard drive
  • DVD RW optical drive
  • HDMI-in
  • Windows 7 Home Premium 64-bit

  • 23" multi-touch 1920 x 1080 display
  • Intel Core i7-2600S (2.8GHz, quad-core)
  • 8GB DDR3-1333 RAM
  • Radeon HD 6450A graphics
  • 2TB WD Caviar Green 5400 RPM hard drive
  • SuperMulti Blu-ray Burner
  • Built-in TV tuner, HDMI-in
  • Windows 7 Home Premium 64-bit

  • Intel Core i7-2600 (3.4GHz, quad-core)
  • 12GB Samsung DDR3-1333 RAM
  • OEM microATX motherboard
  • Nvidia GeForce GTX 460
  • 2TB Hitachi 7200 RPM hard drive
  • Blu-ray / DVD Combo
  • Windows 7 Home Premium 64-bit