Lenovo IdeaPad Yoga 2 Pro vs Lenovo IdeaPad Yoga 13 :What's the difference?

Lenovo IdeaPad Yoga 2 Pro                                                                                                                                                                                                                 The Lenovo IdeaPad Yoga 2 is an excellent ultrabook, even without digging into its hybrid capabilities. This new model adds a backlit keyboard and an impressive 3,200x1,800-pixel-resolution display, while keeping the price under $1,000.The impressive specs continue with an up to an Intel Haswell Core i7-4500Y processor and up to 512 GB SSD. There's also up to 8 GB of DDR3 RAM.                                                                                                                                                             Performance:                    
The Intel Core i5-4200U at the heart of this machine is a Haswell processor, but its two cores are clocked to just 1.6GHz – the hallmarks of a low-power part. Still, it’s got Hyper-Threading, a Turbo Boost top speed of 2.6GHz and 4GB of RAM. That’s enough for PC Mark 7 and GeekBench scores of 4,619 and 4,427: comparable speed to the Samsung and Apple, and enough to ensure that applications load and run smoothly – even if they’re more demanding work tools.In several other key areas, the Lenovo can’t match the MacBook. Both laptops have 128GB SSDs, but the Lenovo’s drive returned sequential read and write scores of 484MB/s and 129MB/s – a good first result undermined by a dreadful second score. The MacBook, conversely, uses PCI-powered storage to hit 709MB/s and 557MB/s. The Lenovo is faster than a hard disk, but hasn’t got the pace of the MacBook – so it lags behind across the board, from application loading to system booting.The Lenovo has an Intel HD Graphics 4400 chipset but, again, Apple is better thanks to its HD Graphics 5000 core. The Yoga scored 36,515 in the 3D Mark Ice Storm benchmark and then 574 in the tough Fire Strike test – but the GPU used by Apple has been clocked elsewhere as scoring 39,288 and 745 in the same benchmarks.Both chips are only good enough for casual gaming and light graphical work, but Apple undoubtedly leads the way in this department.When idling and running less intensive tasks we had no noise issues, but that’s not the case with more demanding software. During tougher benchmarks and stress-tests the fan was noticeable in our quiet office. It’s not as loud as the Kira, and temperatures never hit hazardous levels, but it’s still obvious noise.But, In battery life it lags behind a couple of more expensive higher-res laptops, some of the hybrid modes are of dubious use, and Lenovo still doesn't know what to do with the keyboard in tablet mode.The bottom line: A major update to our favorite Windows 8 hybrid, the IdeaPad Yoga 2 Pro is still a better laptop than tablet, but the new version adds a future-proof better-than-HD display at a great price.                                                                                                                                                                                                SpecificationsProcessorIntel 4th gen Core i3 4010U / 1.7 GHzRAM installed size4 GBHard Drive128 GBOperating SystemMicrosoft Windows 8.1Display Type13.3 inMax Resolution3200 x 1800Weight3.1 lbs                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Price     $999                                                                                                                                                                                                                                       VS                                                                                Lenovo IdeaPad Yoga 13                                                                                                                                                                                                               The 13-inch Lenovo Yoga was one of the first convertible Windows 8 tablet/laptops.Packed into its flexible chassis, the Lenovo Yoga 13 has some tasty specs: its 13-inch IPS screen may not offer a Full HD (1,920 x 1,080) resolution, but at 1,600 x 900 pixels it’s significantly higher than many affordable rivals and offers 10-finger touch. Under the hood, this Yoga can offer up to a Core i7 CPU, up to 8GB of RAM and a 256GB SSD, putting it at the top of the convertible game in terms of power – yet Lenovo still claims battery life of up to eight hours. All that’s lacking is pressure-sensitive stylus support, but as the Core i7 version comes in at under  $1,000.00 , that’s easy to forgive.Intel's 1.70 GHz Core i5-3317U, which has two cores capable of delivering four processing threads with bursts up to 2.6GHz, outputs a surprising amount of giddy-up.Upgrading to the faster Core i7-3517U, which runs at 1.90GHz with bursts of up to 3.0GHz and has a 4MB cache vs. the Core i5-3317's 3MB cache, will give you even more CPU kick.The Lenovo IdeaPad Yoga 13 looks as good as any 13-inch ultrabook, with the added attraction of a 360-degree screen and a laptop body that can fold into a tent, stand, or slate.But, Tablet mode leaves the keyboard exposed, and the Yoga 13 costs more than standard ultrabooks with similar components.The bottom line: The Lenovo IdeaPad Yoga 13 is a convertible touch-screen laptop/tablet that most importantly doesn't compromise the traditional laptop experience.                                                                                                                                        SpecificationsProcessorIntel 3rd Gen Core i5i5-3317U / 1.7 GHz ( 2.6 GHz ) ( Dual-Core )Memory8 GB / 8 GB (max)Hard Drive128 GB - Serial ATA-300Operating SystemMicrosoft Windows 8Display Type13.3 inIPSMax Resolution1600 x 900 ( HD+ )Graphics ProcessorIntel HD Graphics 4000Optical DriveNone                                                                                                                                                                                                                                  Price; $1,000.00