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.
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