
Out of the box, Lenovo’s 27” touchscreen offers a native white point of 7900 K. Both the color temperature and contrast ratio of the screen also remain consistent across most brightness levels. A white point of 6500 K is considered neutral and close to the color of midday sun. If a screen measures below 6500 K, it takes on a warmer appearance that leans towards reds and oranges. If a screen measures above 6500 K, it is said to have a cooler appearance that favors the color blue. Cooler color temperatures are common in a retail environment because they make screens stand out next to other displays.

The IdeaCentre Horizon display produces moderately good brightness uniformity with a maximum deviation of 10%. Maximum brightness is less impressive at 225 cd/m2.

Color uniformity is even less impressive than maximum brightness, with a Delta E of 5.0 between alternate corners. Many people consider a Delta E of 1 to be a noticeable variation, depending on the color.

The IdeaCentre Horizon’s measured gamma response is very close to the standard 2.2 curve used by most Windows systems. A gamma response curve corrects for how the human eye is able to see light and dark colors, and large gamma errors may cause issues with editing or viewing photos. There are no gamma issues present here.
- Lenovo's Table-Sized IdeaCentre Horizon PC
- What Is A Table PC Used For, Anyway?
- Getting To Know The IdeaCentre Horizon
- Brightness, Contrast, Uniformity, And Gamma
- Color Gamut, Accuracy, And Calibration
- Test Settings And Benchmarks
- Results: 3DMark And PCMark
- Results: Sandra And TouchXPRT
- Results: Battlefield 3 And Far Cry 3
- Results: Skyrim And F1 2012
- Results: Audio And Video Encoding
- Results: Adobe Creative Suite
- Results: Productivity
- Results: File Compression
- Energy, Heat, And Battery Life
- The Overall Efficiency And Value Of Lenovo's IdeaCentre Horizon
I wish Tom's would aim their incredible testing abilities at these types of claims. I would like to know if MY Lenova is making me vulnerable.
Lenovo X230
i7 ivy bridge processor
16 GB RAM
500 GB 7200 rpm drive
HD4000 integrated graphics
* connected to one external Dell UltraSharp U2412M 24" monitor.
Why have a PC? Just buy a big a## table.
Why have a PC? Just buy a big a## table.
Ahh, I thought it used both as I've seen some reviews on this website where software uses the cpu and gpu accelerated openCL together.
Also a weird thing I've noticed is that in this article 7zip hands down beats every other program in both file compression time and size, yet in articles such as this one winrar is faster by a factor of over 2. Why is there such a discrepency? The articles are even using the same versions of the program.
Ahh, I thought it used both as I've seen some reviews on this website where software uses the cpu and gpu accelerated openCL together.
Also a weird thing I've noticed is that in this article 7zip hands down beats every other program in both file compression time and size, yet in articles such as this one winrar is faster by a factor of over 2. Why is there such a discrepency? The articles are even using the same versions of the program.