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Penecho
28th December 2008, 15:29
Does anyone know how the Video editing programs run under vista 64bit? Are gknot (for xvid encoding)megui (for x264) and DVDRebuilder with CCE run slower under vista 64bit than under 32bit? are there 64 bit versions out of those programs?


Cu


Penecho
JohnnyMalaria
28th December 2008, 16:58
In general, 32-bit applications on 64-bit Vista run just as they do on 32-bit Vista. I'm my experience I've seen very slight performance gains (1%) or none at all. There's no reason for a 32-bit application to not perform well unless it makes some weird use of hardware that isn't supported on 64.
Ortix
8th January 2009, 00:21
In general, 32-bit applications on 64-bit Vista run just as they do on 32-bit Vista. I'm my experience I've seen very slight performance gains (1%) or none at all. There's no reason for a 32-bit application to not perform well unless it makes some weird use of hardware that isn't supported on 64.

What he said. Vista uses an emulator and there isn't any real speed loss. I used to run vista 64 and almost every program worked. The only problem was that zone-alarm didn't work. I then sold my pc and bought a new one which was... 32 bit.. now i can only use 3 gig ram while i have 4... bummer. As soon as this installation starts acting up i'll install 64 vista :)
tetsuox
8th January 2009, 00:36
The only problem was that zone-alarm didn't work

You'll have problems with programs that operate on the driver level and aren't native 64-bit. Not sure if zone-alarm has an x64 version.
JohnnyMalaria
8th January 2009, 01:55
Technically, it isn't an emulator. The user mode code of a 32-bit application runs as 32-bit code on the processor which is also switched into 32-bit mode by the OS. Windows-on-Windows (WOW) takes care of handling calls that the application makes to the OS by calling the 64-bit equivalent. Often, the hit taken in doing this "thunking" can be made up for because the call is executed with 64-bit code. Interestingly (to me at least!), the Itanium version of Windows has a true emulator to allow x86 code to run on it.
Blue_MiSfit
8th January 2009, 01:55
Encoding software works very well on Vista x64. I've been using it for over a year. Also, some new content creation software does have true 64 bit versions.

There are 64 bit builds of x264 and AviSynth, and there's also AVS2YUV which lets you use 32 bit AviSynth with 64 bit x264, but it's still a little cumbersome. It is faster though :)

~MiSfit