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| Product | Apple iMac 27-inch (3.1GHz, spring 2011)  | Dell XPS One 27 (Windows 8) | Apple iMac (21.5-inch, 2.7GHz, fall 2012) | Apple iMac (21.5-inch, 2.9GHz, fall 2012) |
| Price | $4,209.14 | MSRP: $2,099.00 | $1,229.98 to $1,299.00 | $1,399.95 to $1,722.98 |
| CNET editors' rating | 4 stars | 4 stars | 3.5 stars | 3.5 stars |
| Average user rating | 4 stars | 2.5 stars | 3 stars | 1 stars |
| Release date | May 3, 2011 | Info unavailable | Info unavailable | Info unavailable |
| Bottom line | We recommend Apple's new 27-inch
iMac to digital media editors and others with serious performance needs on the strength of its impressive speed, its connected device potential, and its market-leading 27-inch display. | Updated with a touch screen, a new stand, and up-to-date components, the Dell XPS One 27 leads the inaugural class of
Windows 8 PCs. | The 21.5-inch
iMac will be a compelling lower-cost all-in-one for Mac loyalists, but you can get more capabilities from similarly priced Windows all-in-ones. | The 21.5-inch
iMac will be a compelling lower-cost all-in-one for Mac loyalists, but you can get more capabilities from similarly priced Windows all-in-ones. |
| Product Description | Apple iMac iMac (spring 2011) - Core i5 3.1 GHz - Monitor : LED 27 in | - 3rd Gen Core i5 3450s 3.5 GHz 27 in | Apple iMac iMac (fall 2012) - 3rd Gen Core i5 2.7 GHz - Monitor : LED 21.5 in | Apple iMac - Core i5 2.9 GHz - Monitor : LED 21.5 in |
| Packaged Quantity | 1 | Info unavailable | 1 | 1 |
| Type | Personal computer | Info unavailable | Personal computer | Personal computer |
| Product Form Factor | All-in-one | Info unavailable | All-in-one | All-in-one |
| Dimensions (WxDxH) | 25.6 in x 8.1 in x 20.4 in | Info unavailable | 20.8 in x 6.9 in x 17.7 in | 20.8 in x 6.9 in x 17.7 in |
| Weight | 30.4 lbs | Info unavailable | 12.5 lbs | 12.5 lbs |
| Processor | 1 x Intel Core i5 3.1 GHz ( Quad-Core ) | Intel 3rd Gen Core i5 3450s / 3.5 GHz | Intel 3rd Gen Core i5 1 3 2.7 GHz ( 3.2 GHz ) ( Quad-Core ) | 1 x Intel Core i5 3 2.9 GHz ( 3.6 GHz ) ( Quad-Core ) |
| Cache Memory | 6 MB L3 cache | Info unavailable | 6 MB L3 cache | 6 MB L3 cache |
| RAM | 4 GB (installed) / 16 GB (max) - DDR3 SDRAM - 1333 MHz - PC3-10600 | 6 GB DDR3 SDRAM | 8 GB (installed) / 16 GB (max) - DDR3 SDRAM - 1600 MHz | 8 GB (installed) / 16 GB (max) - DDR3 SDRAM - 1600 MHz |
| Storage Controller | Serial ATA ( Serial ATA-300 ) | Info unavailable | Serial ATA ( Serial ATA-300 ) | Serial ATA ( Serial ATA-300 ) |
| Hard Drive | 1 x HDD 1 TB - Serial ATA-300 - Serial ATA | 1 TB | 1 x HDD 1 TB - Serial ATA-300 - Serial ATA | 1 x HDD 1 TB - Serial ATA-300 - Serial ATA |
| Hard Drive (3rd) | None | Info unavailable | None | None |
| Optical Storage | DVD±RW (±R DL) | 8X Slot Load CD/DVD burner (DVD+/-R Drive) | None | None |
| Monitor | 27 in - LED - 2560 x 1440 - 16:9 | 27 in | 21.5 in - LED - 1920 x 1080 ( Full HD ) | 21.5 in - LED - 1920 x 1080 ( Full HD ) |
| Storage Removable | None | Info unavailable | None | None |
| Graphics Controller | AMD Radeon HD 6970M | nVidia GeForce GT 640M 2GB GDDR5 | NVIDIA GeForce GT 640M | NVIDIA GeForce GT 650M |
| Video Memory | 1 GB GDDR5 SDRAM | Info unavailable | 512 MB GDDR5 SDRAM | 512 MB GDDR5 SDRAM |
| Audio Output | Integrated - Stereo | Info unavailable | Integrated - Stereo | Integrated - Stereo |
| Networking | Bluetooth 2.1 EDR IEEE 802.11a Fast Ethernet Ethernet Gigabit Ethernet IEEE 802.11b IEEE 802.11n IEEE 802.11g | Info unavailable | Bluetooth 4.0 IEEE 802.11a Fast Ethernet Ethernet Gigabit Ethernet IEEE 802.11b IEEE 802.11n IEEE 802.11g | Bluetooth 4.0 IEEE 802.11a Fast Ethernet Ethernet Gigabit Ethernet IEEE 802.11b IEEE 802.11n IEEE 802.11g |
| Operating System | Apple OS X 10.8 Mountain Lion | Microsoft Windows 8 | Apple OS X 10.8 Mountain Lion | Apple OS X 10.8 Mountain Lion |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
| Buying choices |
| MSRP: $2,099.00 See manufacturer website for availability. |
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Apple iMac 27-inch compare (3.1GHz, spring 2011)
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