I have an oldish netbook with an Atom N450 (1.6GHz, 512KB cache) - I've been using it to experiment with MythTV, but it seems really slow, even just to work through the menus! Seconds, sometimes 10 or 20s, to load a new menu. Admittedly from a remote backend, but my older Core1 based laptop seems to be fine with the same setup.
At the moment, "all" I want to do is record/playback SD DVB-T (ie terrestrial not satellite) TV (using a couple of USB tuners). (In future, HD would be good, but I'm sure it'll be time for a new back end & PCIe tuners at that point)
I was hoping to use one of the so-called "nettop" devices which currently seem to be D525-based (1.8GHz, 1MB cache) - is double the cache really going to make that much difference? Or has the internal architecture of the Atom moved on leaps and bounds in between?
Given that I design non-Intel embedded computers for a living I was hoping to get lots of hardcore architecture detail from the Intel website, so I could see for myself, but I can't find it!
So: will a D525 be fast enough to not be the limiting factor on a MythTV backend/frontend combined box? Assume I put enough RAM and a decent hard disk int here... Will it need help with video decode?
Alternatively, are there better low-power options now than Atom for this sort of work?