[mythtv-users] AMD Athlon 64 CPUs and MythTV Compiling

[Greg]

Plus theres the cool 'n' quiet feature on the A64.

Greg

> 
> I would go with the Athlon 64, the whole clock speed thing 
> doesn't really matter as much anymore. In many cases a 2GHz 
> Athlon 64 will outperform a 3GHz Intel. The Athlon 64 has a 
> built in memory controller, lots of cache, and most if not 
> more SSE and MMX type extensions. You would also have the 
> ability to switch things to 64bit as they become available. 
> All of the core Operating system and most applications are 
> already ported and I would expect them to get much faster 
> once people start optimizing for Athlon 64. And it does cost less.
> 
> Quoting Brad Templeton <brad+myth at templetons.com>:
> 
> > On Mon, Dec 20, 2004 at 10:34:02AM -0600, Drew Zerdecki wrote:
> > > I am about to purchase a CPU/mobo for a mythtv box.  I read 
> > > somewhere that it is harder to compile builds for MythTv on these 
> > > AMD Athlon 64 chips.  Specifically I am looking at the 
> AMD Athlon 64 
> > > 3000+.  It is relatively cheap and gets good reviews.  On 
> the other 
> > > hand I am also looking at the Intel 3Ghz which isnt too much more 
> > > but the good motherboards for this slot T chip are a lot ore 
> > > expensive.  Any recommendations?
> > 
> > 
> > Some applications when compiled for the ath-64 are faster.  
> Some are 
> > _slower_ and you prefer to do them in 32 bit mode, though I 
> don't think
> > many are a lot slower.   Of course, many of your RPMs will be in 32
> > bit mode for a while.    I would suspect an mpeg decoder 
> written with
> > 64 bits in mind might do well, but I don't know if anybody 
> has done that.
> > 
> > However, no question, the P4-3ghz is way faster than the 
> Athlon-3000 (not
> > Ath64) at mpeg decoding.    30% idle or less on Ath-3000.  
> 60% idle on
> > P4-3ghz.
> > 
> > This is because the P4-3ghz is at 3ghz, while the 
> Athlon-3000 is at 2.2ghz.
> > 
> > The ath64-3000 is at 2ghz -- it might even be slower than 
> the regular 
> > athlon.