(Shorter bars indicate better performance)
(Longer bars indicate better performance)
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The Lenovo IdeaCentre B520 presented the only real difficulty for the Asus in our performance tests. The Lenovo cost $1,279 at the time of its review, although it's available for $1,199 today. As you can see from its test results, it's faster than the Asus system across the board. The Lenovo system also has a faster graphics card, and a 3D-capable display. The only downside is that it has a 23-inch display.
The result of these comparisons is a series of situational recommendations. Want a large-screen Windows all-in-one for passive media consumption? Get the HP. Want a big screen as well as strong CPU performance and some basic gaming capability? Then the Asus makes sense. Don't care so much about the screen size, but still want speed? I'll point you to the Lenovo.
Other than that, these three all-in-ones are remarkably similar. Asus offers most of what you'll find on the other two in terms of connectivity. You get an HDMI input, USB 3.0 and 2.0 ports, and an SD card slot. You also get some unexpected extras, like a VGA input to let you use the monitor as a display for older laptops, and eSATA for appropriately equipped external storage devices. The volume and video signal-swapping buttons on the display are also convenient.
Asus backs the ET2700I with a yearlong parts-and-labor warranty, as well as 24-7 phone support. It also seems to have streamlined its Web site to add at least the basics of online support. You can find chat, RMA information, driver downloads, and other help all on a single support page.
The Asus ET2700I is an appropriately expensive all-in-one given its fast components and 27-inch display. It would make an excellent system in a bedroom, dorm room, or other small setting where it can be used for both productivity and entertainment. Don't expect much from its audio output, and more committed PC gamers will want to look to the Lenovo IdeaCentre B520 instead, but for more forgiving games and even some light-duty multimedia-editing functions, the Asus ET2700I will serve admirably.Find out more about how we test desktop systems.
Apple iMac 27-inch
Apple OS X Snow Leopard 10.6.7; 3.1GHz Intel Core i5 (second generation); 4GB 1,333MHz DDR3 SDRAM; 1GB ATI Radeon HD 6970M graphics card; 1TB 7,200rpm hard drive
Asus ET2700I (Core i7, April 2012)
Microsoft Windows 7 Home Premium 64-bit (SP1); 2.8GHz Intel Core i7-2600S; 8GB 1,333MHz DDR3 SDRAM; 1GB Nvidia GeForce GT 540M graphics card; 1TB 7,200rpm hard drive
Dell Inspiron One 2320
Microsoft Windows 7 Home Premium 64-bit (SP1); 2.5GHz Intel Core i5-2400S; 8GB 1,333MHz DDR3 SDRAM; 1GB Nvidia GeForce 525M graphics card; 2TB 7,200rpm hard drive
HP Omni 27 Quad
Microsoft Windows 7 Home Premium 64-bit (SP1); 2.5GHz Intel Core i5-2400S; 8GB 1,333MHz DDR3 SDRAM; 64MB Intel HD Graphics 1000 (embedded); 1TB 7,200rpm hard drive
HP TouchSmart 620
Microsoft Windows 7 Home Premium 64-bit (SP1); 3.1GHz Intel Core i5-2400; 8GB 1,333MHz DDR3 SDRAM; 1GB AMD Radeon HD 6670A graphics card; 1.5TB 5,400rpm hard drive
Lenovo IdeaCentre B520
Microsoft Windows 7 Home Premium 64-bit (SP1); 3.4GHz Intel Core i7-2600; 8GB 1,333MHz DDR3 SDRAM; 2GB Nvidia GeForce GT 555 graphics card; 2TB 7,200rpm hard drive