Handy Windows device with sufficient power

I bought the machine through Amazon. Was quickly available. Although I gave the initial order back because inside the display was a dirt crumbs. Who knows how the times affects so back and ordered new, within a week, the new device was there. Here the lens glasses cameras have small dust particles from the inside of the glass. Thankfully not in the actual photo lens. But, as already described above Lenovo probably a little quality problem.
Otherwise no further Geräteauffäligkeiten on tablet or keyboard.
The display is really a dream. Great contrasts, very very bright, if required, very good viewing angles. The sound is very good for me for a portable device. By Dolby / Wolfsontechnik-which can also be turned off via the Control Panel, gets the tone just the right cut. Something gewöhnugsbedürftig is setting up the equalizer in the Dolby settings. But actually rich preferences.
On Windows 8.1 on 10.1-inch touch tablet needs some getting used to. The original scale is set to 150% when Yoga2. Although one must distinguish here between desktop and Appansicht. Because both can be adjusted separately. Important for new starters with Windows on touch tablet would be that there are actually two touch screen keyboards are in Win. 8.1. The actual input keyboard the autom. appears at the corresponding input fields, such as Windows application with password and the on-screen keyboard which indicates a normal sized computer keyboard virtual. Unfortunately, you have only yourself to come out that you can adjust the first again myself. This go then even without Bluetooth hardware keyboard the good old keyboard shortcuts. Because Windows 8.1 is designed for touch operation MMN quite a 'crutch' - act without keyboard in the Desktop view is not so simple. With a passive stylus, for example, the Fibremesh Colt, can also operate the Yoga2. The desktop viewing scale should not be too small, otherwise you do not take the small selection areas.
So you should click through to Control Panel Center Ease of Access.

The Yoga2 with the Intel Atom Z3745 CPU running forth from the power, as a standard notebook from 2008/2009 with Intel Core2Duo same clocking. Only at full power about 9Watt / h swallows Yoga2. In dormant desktop, at 30% brightness, which certainly is completely sufficient, it is 3.6 watts / h.
Ah, a fan is not heard, no one is installed. The actual 'high-flyer' on the CPU sky are the Intel Atom CPU Z37xx's for me. Performance as the notebook + very long battery life, no active fan needed - relatively inexpensive.
Here are some benchmarks from Yoga2:

for comparison: rel. old notebook with C2D T7700 2x2,4Ghz + Nvidia 8400M GS from 2008
SSD hard drive from 2010 electricity consumption, for example at x264 benchmark 72W / h
active fan nat. at full speed, about 40db

WEI value for Windows 8.1:

CPU - 6.3, old notebook - 5.8
Built in 4GB 5.8 - Memory - 5.5 at 2GB, old notebook
Graphic Desktop - 3.7, old notebook - 2.6
Graphic Games - 4.0, old notebook - 3.8
Hard drive - 7.05, old notebook - 7.3 reading: Seq. 64k 190MB / s Random 16K 103MB / s

The WEI value under Win. 8.1 could be determined only by advice from the network.
Which can be displayed in Windows 8.1, by calculating the WEI, also correct numbers such as transfer rates of the hard disk and the built-in eMMC memory. Here arise

Sequential 64k blocks read ~ 166MB / s
Random 16k blocks read ~ 75MB / s

Other benchmarks of programs, with their built-in benchmarks,

such as WinRAR 5.01 multithreaded value: 1515KB / s, the above Notebook: 1648KB / s
Truecrypt, with AES hardware support: 730MB / s, the above Notebook: no AES hardware-installed
TrueCrypt without hardware AES supported. : 202MB / s, ,, ,,: 173MB / s

For this coming indeed QuickSynch was built in ATOM Z3745, which under HandBrake 0:10 can now be used. When using my conversion settings which are quite on image quality and the test videos from the x264 Benchmark 4 or 5, are obtained for the 720p video factor 0.29, for the 1080p video a factor of 0.5.
Even after prolonged Benchmarkerei there at least at room temperature 21 ° C or similar no Throttling

What could be more negative would be that only a microUSB2 port on the device. The not even external 2.5-inch hard drives can be supplied with power, it go only USB sticks immediately. For everything else, an active USB hub must be taken.
In my Yoga2 I immediately installed a 128GB microSD card and running. Where any speed records when reading / writing on this card should be expected.
The charging time of the battery takes about 5h 30min. Also runs as indicated correspondingly long. But another charging solution would have been too expensive again. The USB charging adapter but has indeed 2A thereby creates just 10 watts power and take the battery charging. A 1A USB charging adapter, eg for mobile phones is not enough to load in operation, nor the thin charge cable for the keyboard is really to use only the keyboard.
'Of course,' I too am affected by the Vodafone network error of LTE module. But dual sim, via hotspot feature can be the currently sent round. I use a 1 & 1 Micro SIM card for 3G's D2 network.