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I convert movie(720p to m720p) with ffmpeg slow preset. I have two server. Having E-1230-processor. 7 frames per second can process. I have tried with Amazon Web Services EC2. There is the same speed. What is the, rationale?

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Sorry, I don't quite understand your question. 7 fps at the slow preset isn't unusual and entirely depends on your hardware—online encoding services are of course much faster when they use server grids and distributed encoding. – slhck Mar 19 '13 at 10:01
I'm sorry, I know little English. Same speed as converted the Amazon ec2 :( How can I accelerate? how the hardware required? – Ahmet KAPIKIRAN Mar 19 '13 at 10:27
Try -preset ultrafast instead. Other than that, you obviously need a speedy, multi-core CPU to encode fast. Hard disk speed and RAM are not as important here. – slhck Mar 19 '13 at 10:33
You're always help. Thank you very much :) processors feature: 4 physical, 4 virtual. ultrafast preset quality is deteriorating. – Ahmet KAPIKIRAN Mar 19 '13 at 10:37
Yes, there is always a very big tradeoff between quality and speed – no way around that, unfortunately. – slhck Mar 19 '13 at 10:42

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