Rockbox General > Rockbox General Discussion

Badder performance on Ipod Video than on Sansa e250 ??

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Peterdk:
hmm the kinda sucks :S

But even when playing the games in Rockboy without scalling to fullscreen, it is still slower . :'(

Doesn't anyone know a fix for this ?

lights0ut:
From: http://www.rockbox.org/twiki/bin/view/Main/DeviceChart#Apple_units

iPod 5G - PP5021 (dual ARM7) 32 KHz - 80 MHz   320px by 240px = 76800px
Sansa e2xxPortalPlayer 5024 dual core 100 MHz`176px by 220px= 38720px

So with the sansa you are using about 1.25x the processing speed to draw about half of the screen size compared to the iPod. It's not just your iPod, mines slow too.
AFAIK rockboy isn't fully functional on the 5G yet.


--- Quote from: Peterdk ---I was a bit dissapointed when finding out that this expensive player performed worse than the cheap sansa player.
--- End quote ---
That's apple for ya, they seem to be very "style over substance" these days

Peterdk:
But isn't there any differences in the CPU speed on the 5.5 G Ipod ?

lights0ut:

--- Quote from: Peterdk on May 05, 2007, 11:36:50 AM ---But isn't there any differences in the CPU speed on the 5.5 G Ipod ?

--- End quote ---

you mean between the 5G and 5.5G iPods? I believe they use the same portalplayer chip for the CPU, so the speed would be the same.

saratoga:
I think the Sansa CPU runs at 75MHz.  Could someone confirm?  That page should be fixed.

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