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| Product | Lenovo IdeaPad Yoga 13 | Asus Zenbook Prime UX51Vz-DH71 | Lenovo IdeaPad Y500 59360242 Dusk Black: Weekly Deal 3rd Generation Intel Core i7-3630QM Processor (2.40GHz 1600MHz 6MB) | Apple MacBook Air (13-inch, Summer 2012)  |
| Price | $989.99 to $1,199.99 | $1,809.77 to $1,999.00 | $1,029.00 to $1,642.00 | $1,129.98 to $1,199.00 |
| CNET editors' rating | 4 stars | 4 stars | 4 stars | 4 stars |
| Average user rating | 3.5 stars | 5 stars | 4.5 stars | 4 stars |
| Release date | Info unavailable | Info unavailable | Info unavailable | June 11, 2012 |
| Bottom line | The Lenovo IdeaPad Yoga 13 is a convertible touch-screen laptop/tablet that most importantly doesn't compromise the traditional laptop experience. | The Asus Zenbook UX51Vz-DH71 is a nice fit for anyone looking for premium looks and performance in a
Windows 8 laptop who is willing to pay for it. | For those looking for something more than a feature-light ultrabook, the gamer-friendly Lenovo IdeaPad Y500 is close to brilliant, and several configurations are currently available at a deep discount -- but I can't believe it doesn't have a touch screen. | This year's
MacBook Air opts for gradual improvements rather than anything revolutionary, but lowered prices continue to make it the go-to mainstream recommendation for any MacBook owner-to-be. |
| Product Description | - 13.3 in - 3rd Gen Core i5 - Microsoft Windows 8 Lenovo IdeaPad Yoga 13 i5-3317U - 8 GB RAM - 128 GB SSD | - 3rd Gen Core i7 ASUS ZENBOOK Prime UX51VZ DH71 - 15.6 in i7-3612QM - Windows 8 64-bit Edition - 8 GB RAM - 128 GB SSD + 128 GB SSD | Lenovo IdeaPad Y500 - 15.6 in - Core i7 i7-3630QM - Windows 8 64-bit Edition - 8 GB RAM - 1 TB HDD | Apple MacBook Air MacBook Air (13 in, Summer 2012) - 13.3 in - 3rd Gen Core i5 - Apple Mac OS X Mountain Lion - 4 GB RAM - 128 GB SSD |
| Packaged Quantity | 1 | 1 | 1 | 1 |
| System Type | Ultrabook | Ultrabook | Notebook | Notebook |
| Dimensions (WxDxH) | 17 mm 13.1 in x 8.9 in | 15 in x 10 in x 1.2 in | 15.2 in x 10.2 in x 1.4 in | 12.8 in x 8.94 in x 0.68 in |
| Operating System | Microsoft Windows 8 | Windows 8 64-bit Edition | Windows 8 64-bit Edition | Apple Mac OS X Mountain Lion |
| Weight | 3.4 lbs | 4 lbs | 6 lbs | 2.96 lbs |
| Processor | Intel 3rd Gen Core i5 3 i5-3317U / 1.7 GHz ( 2.6 GHz ) / 3 MB Cache | 3rd Gen Core i7 Intel 3 i7-3612QM / 2.1 GHz | Intel Core i7 3 i7-3630QM / 2.4 GHz ( 3.4 GHz ) / 6 MB Cache | Intel 3rd Gen Core i5 1.8 GHz ( 2.8 GHz ) / 3 MB Cache |
| Memory | 8 GB DDR3L SDRAM | 8 GB DDR3 SDRAM | 8 GB DDR3 SDRAM | 4 GB DDR3L SDRAM |
| Storage | 128 GB SSD | 128 GB SSD + 128 GB SSD | 1 TB HDD / 5400 rpm | 128 GB SSD |
| Display | 13.3 in LED backlight Yes VibrantView 1600 x 900 / HD+ | 15.6 in 1920 x 1080 / Full HD | 15.6 in LED backlight VibrantView 1920 x 1080 / Full HD | 13.3 in LED backlight 1440 x 900 / WXGA+ |
| Graphics | Intel HD Graphics 4000 | NVIDIA GeForce GT 650M - 2 GB | NVIDIA GeForce GT 650M - 2 GB | Intel HD Graphics 4000 |
| Networking | 802.11n None Bluetooth 4.0 | Bluetooth 4.0 , Gigabit Ethernet 802.11b/g/n | 802.11n , Gigabit Ethernet , None Bluetooth 4.0 | 802.11n None Bluetooth 4.0 |
| Battery | 4-cell - up to 8 hour(s) | 8-cell | 6-cell - up to 3 hour(s) | up to 7 hour(s) |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
| Buying choices | Prices from 3 stores |
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