Lenovo ThinkPad Helix The ThinkPad Helix is powered by a third generation Intel Ivy Bridge processor, up to Core i7 and up to 8GB of DDR3 1600MHz RAM. Aiding performance is an SSD of up to 256GB so its performance is top-notch. You’ll be able to choose between Windows 8 and Windows 8 Pro.The Lenovo ThinkPad Helix will be available in an array of spec configurations, but the one we saw demonstrated was a mid-range example, with a Core i5 processor. Core i7 options will also be available. The ThinkPad Helix uses current Ivy Bridge-generation CULV Intel chips, backed-up by 8GB of RAM and a 256GB SSD. The screen and base are each under 2.0 pounds, but that's on the hefty side for an 11.6-inch system. That said, it's 20mm thin, qualifying for ultrabook status, and can run processors up to Intel's current-gen Core i7.Travel-friendly features include 3G/4G antenna options, NFC chip, and a spill-resistant keyboard.The Lenovo ThinkPad Helix feels like a hybrid roadwarrior. It's reasonably light, especially in its class, offers great build quality and careful attention to detail in its construction. It may not be a beauty, but it's one of the better full Windows 8 hybrid designs out there. Performance and battery life
A 1.8 GHz processor and 4GB of RAM may seem small on paper, but in practice the ThinkPad Helix is a surprisingly capable machine. Both the Windows 8 tiled interface and desktop ran smoothly on our review unit.
Browsing in either Chrome or Internet Explorer, we could get a dozen tabs going before performance started to chug. This is with the tablet docked in its helpful stand, which provides extra cooling and allows the processor to overclock a little.
The performance enhancement is noticeable, and the fans generate minimal noise. This is by no means a gaming machine, but we were able to play some Half Life 2: Episode 2 with an acceptable framerate.
The stand also provides additional battery life. With its help, we generally got 7 to 8 hours of web surfing and word processing. As just a tablet, the Helix got between 5 and 6 hours. That's not bad at all, certainly better than a Surface Pro, but one can't help but think of what Haswell could've done for this machine.
Price;$1,499 VS HP EliteBook Revolve 810 The 11.6-inch Gorilla Glass 2-covered touch display feels great, looks sharp, and has great viewing angles, but it has only a 1,366x768-pixel resolution. That doesn't matter quite so much for most everyday tasks, but keep in mind that other 11-inch laptops like the Sony Vaio Pro 11 and ThinkPad Helix (and even the 10-inch Surface Pro) all have 1,920x1,080-pixel resolutions.A compact magnesium alloy body and sturdy design make the EliteBook Revolve 810 a great laptop to work on.
But, Disappointing battery life, high price, and slightly thicker body than more consumer-targeted systems.
The bottom line: HP’s EliteBook Revolve 810 is a good first step toward a very portable business laptop-tablet hybrid, but lack of a killer battery life hurts it. Specifications
ProcessorCore i5 i5-3437U / 1.9 GHz ( 2.9 GHz ) ( Dual-Core )
Memory4 GB / 12 GB (max)
Hard Drive128 GB - Serial ATA-300
Operating SystemWindows 8 Pro 64-bit Edition
Display Type11.6 in
Max Resolution1366 x 768 ( HD )
Graphics ProcessorIntel HD Graphics 4000
Optical DriveNone Price $1,449 VS Sony Vaio Duo 11 Sony’s Duo 11 is one of that strange new breed of hybrid Windows 8 devices that can be used as either a tablet or a laptop computer. It's an Intel Core i5 3317U chip clocked at 1.7GHz - the same low power variety found in Ultrabooks. While 1.7GHz may seem low, it can Turbo Boost itself to a whopping 2.7GHz under heavy strain, which means it's no slouch.It’s certainly an attractive looking device, with an excellent high-definition, touchscreen.The Sony Vaio Duo 11 packs an 11.6-inch 1920 x 1080 IPS panel, which looks glorious. Not only is Windows 8's new interface sumptuously represented, but also apps, games and movies too.The Sony Vaio Duo 11 has a fine set of specs for an ultrabook and an excellent full-HD touch screen on which to take advantage of the Windows 8-style interface.Battery life is respectable considering the specifications. We got just over four hours when using Wi-Fi to stream video from iPlayer, so you can probably stretch that to around five hours for lighter web browsing or using simple office software.
But, The Duo's design misses the mark for use as a tablet and a laptop, feeling like too much of a compromise.
The bottom line: While there are certainly things to like about the Sony Vaio Duo 11, the design gets in the way of enjoying them.
Specifications
ProcessorIntel 3rd Gen Core i5 3317U / 1.7 GHz( 3 GHz ) ( Dual-Core )
Memory6 GB/ 8 GB (max)
Hard Drive128 GB
Operating SystemMicrosoft Windows 8
Display Type11.6 inIPS
Max Resolution1920 x 1080( Full HD )
Graphics ProcessorIntel HD Graphics 4000
Optical DriveNone Price;$1,199.99
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