Hi there... One more noob question I have dedicated PC for Media Center with Software Media Portal (Similar to XMBC). At the moment i use it with Windows 7. The startup to the Nedia Center software is kind os fast but i want more. So... Windows 8/8.1 is more fast then windows 7? True or myth?
Best is you try yourself on your machine. Here 8.1 is definitely faster than 7 was. I checked with very different boxes and had all same results. This does not mean that it will be same at your end
As PaulDesmond said, try it in your own machine but its not faster than 7. In fact 8 is slower in many aspects, there are a couple of benchmarks that show this fact.
Hmm, I'd be interested in seeing some recent unbiased benchmarks. I have no benchmark numbers, but I find 8.1 to be "faster" than 7. Faster in-regards to boot times (cold start to desktop), and Guild Wars 2 even felt smoother. In any case, I don't see how Windows 8 can be any slower than 7, unless you don't use appropriate drivers. Edit: I'll find this out later myself; I'll do some benchmarks (Geekbench, PerformanceTest, CompuBench) in 8.1, and then in 7.
Higher benchmark scores ≠ Faster overall experience. In fact, I can confirm Windows 8.1 is WAY faster than windows 7. Faster boot, better prefetch, better RAM management and so on... Benchmark scores do not mean anything. In fact, benchmarks that are not yet optimized for the latest OSes almost always produce lower scores, pair that with unoptimized/old drivers and it gets even worse. However, as I said, thay do not matter. The OS is faster, trust me.
Media Center is a .NET-based application, so I wouldn't expect any significant differences in performance between 7, 8, and 8.1 if you have the appropriate audio/video drivers installed on either platform. I'm not using Media Center anymore, but I'd guess that it still uses the .NET CLR 2.0 (I think you need the .NET Framework 3.5 to run it, and all .NET 2.0, 3.0, and 3.5 use the same CLR version) and its codebase seems to be "frozen" since Windows 7 has been released and didn't change for 8/8.1.
I find booting, launching applications and overall responsiveness in Windows 8 to be superior to 7. Were it not, I'd have gone back to 7 because I had to do some fiddling to get the interface back to how I like it.