[mythtv-users] Dual or Single core Athlon64 for MythTV front-end machine
George Mari
george_mythusers at mari1938.org
Sat Jan 31 22:20:27 UTC 2009
Dale Pontius wrote:
> I'm putting together a dedicated MythTV front-end machine, and at the
> moment am picking the CPU, going through the 45W choices at Newegg.
>
> Prime Candidates would be the X2 2350, and the single-core 1640. The
> former is of course dual-cored, clocked at 1.9GHz, with twin 512k L2.
> The latter is clocked at 2.6GHz with 1M L2.
>
> My current inclination is to go with the latter. While it has less
> overall crunching power, it's single-thread execution is likely better,
> and I don't know how much a MythTV front-end can really use two cores.
> I understand that this is a no-brainer for a back-end, that more cores
> is better, but it seems an open question to me for a front-end.
[deleted]
I have a single-core Athlon 64, Socket 754, 2.2Ghz rig as a
frontend-only, with an AGP Nvidia 6200. It handles any kind of MPEG2
you can throw at it, including 1080i.
It can play back ATSC 1080i at 1.3x playback speed with 5% idle CPU.
As I understand it, myth does not directly take advantage of multiple
cores - yet. I believe this is an evolving feature.
Even with out it, you have X itself usually taking up a fair amount of
CPU during decoding and playback, so 2 or more cores aren't wasted. It
gives you a bit of headroom.
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