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View Full Version : x264 just supported 64 bit???


Chengbin
16th February 2009, 16:18
I see that on x264.nl there is a separate section for 64 bit builds, and currently the 64 bit build is 1 revision behind. I thought x264 supported 64bit a long time ago.

J_Darnley
16th February 2009, 16:21
Not on Windows.

Chengbin
16th February 2009, 16:36
So x264 just supported 64 bit on Windows?

Sorry for this noob question, what is the difference. Does running a 64 bit x264 on a 64-bit machine much faster than running a 32-bit x264 on a 64-bit machine?

J_Darnley
16th February 2009, 16:48
No, x264 supported 64-bit on everything but Windows. 64-bit Windows support was added on the 11th with the rather ambiguous commit message of "Windows 64-bit support".
Yes, running 64-bit x264 on a 64-bit OS is faster than 32-bit on 64. Dark Shikari has said that it is faster by 10-15%

Chengbin
16th February 2009, 17:14
Another question.

Suppose two computers with the exact same specs and software installed, except one is running 32 bit Windows and 32 bit x264 and the other one is running 64 bit Windows and 64 bit x264. Is the 64 bit system faster?

tal.aloni
16th February 2009, 17:29
Another question.

Suppose two computers with the exact same specs and software installed, except one is running 32 bit Windows and 32 bit x264 and the other one is running 64 bit Windows and 64 bit x264. Is the 64 bit system faster?

yes, I got more than 10% boost in my encodes.

hubblec4
16th February 2009, 19:31
hi a have question too.

on a 64bit system (windows) with 64bit x264 you need avisynth 64bit?

hubble

LoRd_MuldeR
16th February 2009, 19:32
hi a have question too.

on a 64bit system (windows) with 64bit x264 you need avisynth 64bit?

hubble

Either that, or pipe the input into x264 from a 32-Bit process ;)

Like my tool here does it:
http://forum.doom9.org/showthread.php?t=144140

(That allows you to use 64-Bit x264 with good old 32-Bit Avisynth, as you are used to it)