[maemo-developers] [maemo-developers] Cairo performance comparison, 770 / N800 / PXA-320

[From: Siarhei Siamashka]

On Sunday 14 January 2007 20:11, Frantisek Dufka wrote:

> Marius Gedminas wrote:
> > On Sun, Jan 14, 2007 at 07:53:06PM +0200, Marius Gedminas wrote:
> >> On Sun, Jan 14, 2007 at 12:11:37AM +0200, Siarhei Siamashka wrote:
> >>> Also Nokia 770 runs not at 220MHz as stated on your page, but at
> >>> something closer to 250MHz as shown by this test code program
> >>> (and confirmed to be actually 252MHz by somebody from Nokia
> >>> on #maemo about half a year ago).
> >>
> >> So http://maemo.org/faq/faq.html#faq-N10129 is lying?

Well, if I were to create a conspiracy theory, I would suggest that it could
be done on purpose to make N800 look like a bigger improvement when 
comparing it to 770 ;-)

But most likely it is just a typo, a lot of new docs became available lately,
so they may contain some minor inaccuracies.

> > The OMAP1710 page from Texas Instruments also claims 220 MHz is the
> > maximum frequency:
>
> Check /proc/omap_clock on device, it says 252Mhz for both ARM and DSP core.

Hmm, interesting. Can anybody check /proc/omap_clock on N800 device?
I'm particularly curious about DSP clock frequency (as it can be actually
lower than on 770).