New iBook speculation and fantasy

[Daveman Deluxe]

Originally posted by QCassidy352
you've got to be kidding me... I notice a big difference between my 1 Ghz 12" Albook and the 900 mhz ibook it replaced.

Comparing the speed of your sister's ibook to the 12" PB...
700 mhz G3 -- 1 Ghz G4
100 mhz bus -- 133 mhz bus
SDRAM (max of 640) -- DDR RAM (max of 1.2 gigs)
*old* 16 meg Mobility Radeon -- 32 meg geforce 5200go

For what it's worth, the G4 does not properly support DDR RAM--the systm controller can only read/write on the rise of the clock cycle, not the fall.

 

[Plutoniq]

The 1mb 1:1 L2 Cache is really goin' to do a lot for the performance of the Ibook, people overlook how critical this single factor can effect CPU performance. The path to the L2 Cache on the 750GX is 256bits wide, meaning it can both read & write to the L2 cache at the same time.

60x bus might be a little outdated, the Systems bus speeds of portable Mac's is even more so........ but the 750GX is going to minimize the effects these bottlenecks have on performance.

It's pretty much a joke that the G4 has only now just been introduced with 512k 1:1 L2 cache. I agree with Apple that L3 cache is unimportant when a large and fast L2 cache is present...... but i wouldn't necessarily call 512k of L2 cache large when both 750GX's and Intel Centrino's are being issued with 1mb 1:1 L2 cache as a standard.

 

[lewdvig]

Originally posted by QCassidy352
you've got to be kidding me... I notice a big difference between my 1 Ghz 12" Albook and the 900 mhz ibook it replaced.

Comparing the speed of your sister's ibook to the 12" PB...
700 mhz G3 -- 1 Ghz G4
100 mhz bus -- 133 mhz bus
SDRAM (max of 640) -- DDR RAM (max of 1.2 gigs)
*old* 16 meg Mobility Radeon -- 32 meg geforce 5200go

Those are HUGE differences... especially the first one of course.

This is no knock on the ibook - I've had two, and loved them both. But in terms of speed... the current 12" PB absolutely blows any ibook out of the water, even the 900 mhz. The 700 mhz? It's nowhere close...

Will the new ibooks be closer in speed to the PB? I'm sure they will, just as the 900 mhz ibook was fairly close to the Rev. A 12" PB in speed (on non-altivec tasks)... but that's to be decided when the new ibooks appear.

I didn't say that there wasn't a difference, just that she didn't notice it. In the stuff she does - office apps mail and web - that does not surprise me at all.

This iBook with Panther is really something. I am a power snob, but I would actually call this little iBook usable now. No, it won't be my first choice for FCP but the new OS makes everyday stuff like finder, mail and preview a whole lot faster.

The G4 makes the biggest difference in Altivec optimized apps - especially iMovie and iPhoto. I found iPhoto OK though.