Finally 300 MBit / s

Reason for the change: the factory-fitted wireless card brought only 130 MBit / s, which I partly was too low, especially for the media streaming over Wi-Fi.
The installation of a still existing Intel 6200N was fruitless: Despite numerous attempts this card came in my notebook does not have the 65 Mbit / s (in both the 2 and the 5 GHz band) even though they clearly would have more can afford to.

The 6250 creates mainly your "target values" of 300 Mbit / s with me. Of course, it is clear that the transmission power also depends on how many other devices are active on the network. Three devices in 5GHz it varies between 230-270 Mbit / s, which I am absolutely satisfied. Is it for himself "alone", it also comes to the 300 MBit / s approach.

Before installation it is advisable to obtain the latest driver to download (what I did). Otherwise, one has to rely on a wired Internet connection.

In zusammensoiel with Windows 8.1 Pro (64-bit) I have so far found no incompatibilities.

For me a recommended replacement for the weak factory built wireless card.