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 Envy x2 The Envy x2 impressed us. Its outstanding industrial design really shows the potential of a tablet/laptop hybrid. The HP Envy x2 has a clean, comfortable design and feels lightweight in tablet form. It has excellent battery life, and works just as well as a laptop as it does as a tablet. Performance: Unfortunately, as soon as we start talking performance we’re confronted by the fact that Clover Trail is still Atom, and Atom is still not in any way, shape or form a performance chip – and that 2GB RAM maximum doesn’t help here either.Don’t get us wrong, for navigating through Windows and average daily use such as browsing the web and running apps or light programs, the Z2760 in the HP Envy x2 runs smooth as butter. Performance is consistently superior to that in the netbooks of yore, especially when it comes to HD video playback and light multi-tasking, and most non 3D-gaming apps you’ll find in the Windows store should run without a hitch.
However, proper multi-tasking; running intensive HD video simultaneously with another program; or using demanding programs like an image editor can still quite easily bring this kind of machine to its knees. In other words, as a tablet the x2 performs admirably, but as a laptop replacement you have to be prepared to put up with its limitations.
3D gaming in anything but the most casual titles, meanwhile, is also a big no-no. Even at minimum settings our test games simply refused to run or crashed after getting through the menus. Mind you, this is not surprising given that Intel’s integrated GMA 3600 chip paired with the Atom Z2760 is derived from an old PowerVR design the benefits of which Windows drivers don’t fully bring out. Hopefully updated drivers will eek out more performance. Battery life: Battery life is impressive, living up to HP’s claim of seven hours when we streamed video from BBC iPlayer. And, of course, there’s a second battery in the keyboard, which provides an additional seven hours of battery life. No ultrabook that weighs a similar amount can claim to last this long. But, The laptop mode is top-heavy, and the awkward tablet detachment mechanism isn’t perfect; it has limited ports; and a slower Atom processor means in performance it's far behind most ultrabooks, even though it’s priced like one. The bottom line: The HP Envy x2’s capacity to be a full Windows 8 tablet or dock with a keyboard works as well as advertised, provided you’re willing to live with slower performance at a high price. You’re paying for style.
Windows 8 (32-bit); 1.8GHz Intel Atom Z2760; 2GB DDR2 SDRAM 1,066MHz; 747MB (Total) Intel GMA; 64GB SSD Processor 1.8GHz Intel Atom Z2760
Memory 2GB, 1,066MHz DDR2
Hard drive 64GB SSD
Graphics Intel GMA
Operating system Windows 8
Dimensions (WD) 11.9x8.1 inches
Height 0.6-0.7 inch
Screen size (diagonal) 11.6 inches
System weight / Weight with AC adapter 3.1 pounds / 3.6 pounds (tablet + keyboard)
Category Ultraportable hybrid Price; $849 VS Asus Taichi 21 The Asus Taichi 21 offers a clever implementation of a dual-screen design in a slim Core i7 chassis.It features dual 11.6" IPS displays with 16:9 aspect ratios and Full HD 1920 x 1080 native resolutions, thanks to the integrated Intel HD Graphics 4000. The main screen inside the lid is a normal laptop display while the outer lid features a secondary touchscreen display. Both screens can be used independently of each other so two people can use them at the same time.
But, Only one of the screens is touch-enabled, which feels like a major oversight. There are probably only a handful of situations where you'd need an outward-facing display.Tablet Mode is on par with this, lasting for 2 hours and 27 minutes. The Taichi is greedier in Dual-Screen Mode, lasting 1 hour and 48 minutes. That last score isn’t too bad considering both displays are on, and screens are one of the biggest battery hogs on a laptop.
The bottom line: More of a clever proof-of-concept than a practical product, the Asus Taichi still delivers on its basic promise, combining two displays for a unique take on the laptop/tablet/hybrid genre. Specifications
ProcessorIntel 3rd Gen Core i7 3517U / 1.9 GHz( Dual-Core )
Hard Drive256 GB- Serial ATA-600
Operating SystemMicrosoft Windows 8
Display Type11.6 inIPS
Max Resolution1920 x 1080 ( Full HD )
Graphics ProcessorIntel HD Graphics 4000
Optical DriveNone Price;$1,489.00 to $1,599.00