Danke für die Antwort aber mir geht es nicht um die Formatfrage sondern um Erfahrungen im Vergleich CPU Rendering vs neuer QuickSync Funktion.

Gruß

HGR

I am interested in this question also because I am considering the upgrade to this 3rd generation i7 CPU from an older Quadcore. I use these 1080 50p files also.

I have seen a test in a magazine where they compared an encode, via MediaConverter 7.5, from a 2min15s 1080p AVCHD file to a 400p AVI smartphone format. The 3770K took 24secs without the iGPU and 16secs with iGPU acceleration. A 2600K CPU took 28secs without and 20secs with the intel integrated graphics acceleration. 

I imagine the improvement with the new chip is because Intel have upgraded the integrated graphics to HD4000 from HD3000 on the 2600k

Interesting that both i7 chips performed worse in this encode test with a discreet HD7850 enabled (instead of the Integrated GPU) taking 27secs for the 3rd gen i7 and 25secs with the 2nd gen i7. This is a worry especially as Magix told customer in a recent post http://www.magix.info/us/high-cpu-usage..when-using-effects.-preview-window-lags.knowledge.780621.html that the poor performance of his laptop with an i7 is because the program can not make use of the dicreet graphics card when the integrated GPU is present. They say that this only affects a laptop and that a desktop is different, but I wonder if this may not explain poor performance some members have reported with i7's and Magix over the last year or two.

I am interested to hear others experience with i7 configurations and Magix encoding and preview performance.

All the best

Peter