If you have €900+ to spend on a CPU this simply won’t happen, at least not in Austria and Germany.
We checked a few online price comparison engines and it turns out that no one has the QX6850 in stock.
You can check our claim here and even the ones that are listed won't be cheaper than €870 or more. One of the shops claims that it should get them on the 21st of August.
And here are the listed CPUs.