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Motorola MPC7457 Information (PDF)

Friday July 25, 2003 4:20 pm PDT by Arnold Kim
Motorola has posted a PDF with details of the MPC7457 processor.



The MPC7457 is described as the fourth implementation of the G4 Processor. It's a 32-bit chip with a 512KB L2 cache (2x that of previous chips), and support for 1MB or 2MB of L3 cache.



According to the July, 2003 Motorola document, MPC7457 processors will be coming in at 867MHz, 1.0GHz, and 1.3GHz, with bus frequencies up to 167MHz. This is contrary to previous notes from The Register and Motorola documentation (PDF) that the chip would support a 200MHz bus.



Current Powerbooks sport 133-167MHz buses. Speculation has placed the PPC7457 in the long-awaited Powerbook revisions... but no significant confirmation of this is available.

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DrGonzo
112 months ago
Sorry folks, this chip sounds lame for how long it's been. Apple might as well reduce the prices on the current powerbooks by a few hundred dollars and just tell us to wait for the smaller die G5s to appear in the powerbooks and stick those 7457's in the ibooks and what not. This is hardly what i would call a worthy update to the current line of g4s. If this chip does indeed make it into the powerbooks, the price better be damn good because imo there's no way they can charge what they charge now for something only SLIGHTLY better.
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IJ Reilly
112 months ago
If true, what a positively underwhelming development this will be.
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tazznb
112 months ago
So what advantages (if any) are there to having this new chip?

Seems more like a snowjob.:o
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sharky2313
112 months ago
wow moto lets us down again, I'm shocked. I agree with the previous posts. Apple should forego the chip entirely and just reduce the price on the books. That would help move units more than these chips:)
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chazmox
112 months ago
I usually think most readers have their expectations set too high, but here comes Motorola to underwelm again. I am Jack sense of disappointment.

I wouldn't be surprised if the speed they were aiming for was not a bit higher, but the yields failed to materialize.

And 167 MHz bus speed? What are the advantages to this chip? The slightly higher speed? Has Motorola just chosen not to compete at all.

BTW, industry ratings of the top ten semiconductor firms came out today ( not sure what the criteria was ). Mot's been in the top ten since 1959. This is the first time since then they didn't make it...
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snofseth
112 months ago
It's good news for owners of 12 or 17 pbooks. they will not seem obsolete. It makes me happy with all the hype about this update. Im glad I wont have a reason to get a new 12"
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jaedreth
112 months ago
Now if they moved these chips to iBooks, then made the following configurations:

PB G4 12" 1GHz

PB G4 15.2" 1.3 GHz
PB G4 15.2" Dual 1GHz

PB G4 17" Dual 1GHz
PB G4 17" Dual 1.3GHz

Now that wouldn't suck. (or at least as much)

Jaedreth
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TWinbrook46636
112 months ago
So I guess this means MacBidouille was full of it...
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arn
112 months ago

Originally posted by chazmox


And 167 MHz bus speed? What are the advantages to this chip? The slightly higher speed? Has Motorola just chosen not to compete at all.


Increased L2 Cache (to 512k)
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arn
112 months ago

Originally posted by TWinbrook46636
So I guess this means MacBidouille was full of it...


regarding which?

arn
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