[x264-devel] CPU required for real time x264 encode of 720P

[Jason Garrett-Glaser]

On Tue, Feb 22, 2011 at 5:03 PM, Andrew Robbie (Gmail)
<andrew.robbie at gmail.com> wrote:
> Dear list,
>
> I need to do real time encoding of 720P video captured from Blackmagic
> Intensity/DeckLink cards:
>
> http://www.blackmagic-design.com/products/decklink/
>
> It is hard to get an idea of how much CPU is required to do this with x264.
> For example, if I have an Intel Xeon E5640 (Gulftown 4 cores, 2.66GHz) or a
> Core i7-940 (Bloomfield 4 core, 2.67GHz) what frame rate can I expect for 1
> core or 4 core?

Overkill.  A core 2 duo can do it.

Of course, faster is better as you can use higher-compression presets.

Jason