[mythtv-users] 32 or 64 Bit

John Drescher drescherjm at gmail.com
Fri Mar 5 02:30:30 UTC 2010

On Thu, Mar 4, 2010 at 9:19 PM, Laurence Huizinga
<lhuizinga at iinet.net.au> wrote:
> I have a slightly noob question about this 32/64 bit idea.  I have a Pentium
> D 830 and am running 64 bit Archlinux and MythTV.  This works ok, but my cpu
> gets a little warm and the fan too noisy for my liking.  I have two tv
> cards, a DVICO Fusion Lite HDTV and a Leadtek Winfast DTV1000T.  I think I
> am right in saying that these cards have 32 bit interfaces.
> Therefore, if I change over to 32 bit Linux on this system, where the main
> cpu task is to decode dvb (to decode with one cpu perhaps and watch or
> decode another stream with the other core) from these cards, Would I get
> better performance or should I stick with 64-bit??
> The reason I ask is that this CPU is not "pure" 64 bit from what I have
> read, but still works ok in my estimation.
> Larry

For this cpu I would use 32 bit. The 64 bit in this cpu is done using
a 32 bit ALU so you do not get the performance benefits of 64 bit.


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