<strong>why wouldn't Apple go with the '57 across the board as soon as they become available?</strong><hr></blockquote>Probably to avoid delivery problems from Motorola? And.. the new processors might be more expensive than the old.. just because they are so new and cool *pun intended*
<strong>Probably to avoid delivery problems from Motorola? And.. the new processors might be more expensive than the old.. just because they are so new and cool *pun intended*</strong><hr></blockquote>
...I would think that if they are die shrunk 7455s, then they should be cheaper as far more will come off one wafer. So, cheaper, faster, cooler sounds pretty damn good to me.
....and just a thought, as no one has yet to see a 1.42 inthe wild, maybe this delay on the 1.42 is that the yare indeed using the die shrunk 7457.
....and just a thought, as no one has yet to see a 1.42 inthe wild, maybe this delay on the 1.42 is that the yare indeed using the die shrunk 7457.</strong><hr></blockquote>
If they are, then Apple's tech specs page has an error, since they mention their G4s have 256K of L2 instead of 512K. Maybe somebody with a new 2x1250 MHz G4 can pull off his heatsink and look at the stamp?
If they are, then Apple's tech specs page has an error, since they mention their G4s have 256K of L2 instead of 512K. Maybe somebody with a new 2x1250 MHz G4 can pull off his heatsink and look at the stamp?</strong><hr></blockquote>
Well maybe they will just post an errata sheet and add 512k L2
Yeah, your right they'll probably just change the number to 512 and not say anything. Anyone volunteer to check the Apple site hourly and keep us up-to-date :cool:
The simplest explanation is just that the 7457/7447 is not yet available in sufficient quantities for Apple to use. That and they are trying to get rid of their existing stockpile of 7455s.
The 7447 would be appropriate for the consumer machines which don't have L3 caches anyhow. I know Apple hasn't used these variations in the past, but that doesn't mean they'll never consider it.
Earliy in this thread, there is a post with a link to the new motorola pdf on the 7457. After looking over it again I have realized that it says the 7457 only has a 166Mhz bus. I thought the 7457 was supposed to have a 200mhz bus. Whats up here? <img src="confused.gif" border="0">
<strong>Earliy in this thread, there is a post with a link to the new motorola pdf on the 7457. After looking over it again I have realized that it says the 7457 only has a 166Mhz bus. I thought the 7457 was supposed to have a 200mhz bus. Whats up here? </strong><hr></blockquote>
It also says "up to 1.3 GHz," but we know better than that, don't we?
The 7455 is only listed as having a 133 MHz system bus. We know it's capable of 166 MHz. Motorola's really holding back a lot of information of the 7455 and it's reasonable to think they are doing the same for 7457. This early in the game we probably won't see the whole picture since it's not given to us.
<strong>The 7455 is only listed as having a 133 MHz system bus. We know it's capable of 166 MHz. Motorola's really holding back a lot of information of the 7455 and it's reasonable to think they are doing the same for 7457. This early in the game we probably won't see the whole picture since it's not given to us.</strong><hr></blockquote>
<strong>Earliy in this thread, there is a post with a link to the new motorola pdf on the 7457. After looking over it again I have realized that it says the 7457 only has a 166Mhz bus. I thought the 7457 was supposed to have a 200mhz bus. Whats up here? </strong><hr></blockquote>
apple buy's all cpu's faster than 1.3 Mhz (with the faster bus). so the only cpu's motorola has left to sell in sufficient quantities are the slower ones.
in the mean time apple is stock pilling these chips for (another) updated summerline pm/imac/powerbook in about 4-6 months
If they are, then Apple's tech specs page has an error, since they mention their G4s have 256K of L2 instead of 512K. Maybe somebody with a new 2x1250 MHz G4 can pull off his heatsink and look at the stamp?</strong><hr></blockquote>
Anybody have any idea how much performance improvement 512K of L2 will make over 256K L2? Where will the improvements be seen?
Those old motorola PDFs that were leaked stated that the 7457 would be out by January. But we didn't see them. The bus speeds of new apple hardware have been left out of the specs. All the apple updates seem sort of like hold me overs. The cool 17" and 12" powerBooks not matching the 15" models updated just a month or so before. The iMacs have been updated to one new model and a reduced price old model. The PowerMacs are a bit faster but don't include the new 7457 that is supposed to be available by now. They only reduced prices on the emacs and the 17" PowerBook is still not shipping.
It really seems like all smoke and shadows to me. When are we going to get some real updates? Like the 970 or even the 7457. Maybe this summer or later. Who knows but I'm telling you smoke and shadows, smoke and shadows.
I found XC7445A RX867WF in PowerBook 12".</strong>
Really? You would be the 1st recorded instance of Apple using a 744x G4. Interesting. You found out through a CPU checker program or taking apart your AlBook?
Anybody have any idea how much performance improvement 512K of L2 will make over 256K L2? Where will the improvements be seen?</strong><hr></blockquote>
Well, if you're AMD and desperate, it makes a big marketing difference. <img src="graemlins/lol.gif" border="0" alt="[Laughing]" />
A AMD Athlon XP 2250 MHz w/256KB cache has a Quantispeed rating of 2800+
A AMD Athlon XP 2167 MHz w/512KB cache has a Quantispeed rating of 3000+
<strong> If motorola claims that the 7455 can only go 1Ghz, but apple has them going 1.42Ghz, I imagine Motorola's claim that the 7457's top speed is 1.3ghz is incorrent. Do you think we will see 1.6Ghz 7457 soon? </strong><hr></blockquote>
Motorola claimed the 7455A to run 1GHz @ 1.3V. They didn't officially tell us the speed the 1.85V versions can reach. But I can remember a product bulletin from June 2002 where they listet "XC7455ARX1167PCR", "XPC7455RX1100PC" and "PPC7455RX1067PB" (where XC is preproduction and PPC is full production, P = 1.85V/65°C).
Comments
<strong>why wouldn't Apple go with the '57 across the board as soon as they become available?</strong><hr></blockquote>Probably to avoid delivery problems from Motorola? And.. the new processors might be more expensive than the old.. just because they are so new and cool *pun intended*
<strong>Probably to avoid delivery problems from Motorola? And.. the new processors might be more expensive than the old.. just because they are so new and cool *pun intended*</strong><hr></blockquote>
...I would think that if they are die shrunk 7455s, then they should be cheaper as far more will come off one wafer. So, cheaper, faster, cooler sounds pretty damn good to me.
....and just a thought, as no one has yet to see a 1.42 inthe wild, maybe this delay on the 1.42 is that the yare indeed using the die shrunk 7457.
[ 02-08-2003: Message edited by: mooseman ]</p>
<strong>
....and just a thought, as no one has yet to see a 1.42 inthe wild, maybe this delay on the 1.42 is that the yare indeed using the die shrunk 7457.</strong><hr></blockquote>
If they are, then Apple's tech specs page has an error, since they mention their G4s have 256K of L2 instead of 512K. Maybe somebody with a new 2x1250 MHz G4 can pull off his heatsink and look at the stamp?
<strong>
If they are, then Apple's tech specs page has an error, since they mention their G4s have 256K of L2 instead of 512K. Maybe somebody with a new 2x1250 MHz G4 can pull off his heatsink and look at the stamp?</strong><hr></blockquote>
Well maybe they will just post an errata sheet and add 512k L2
<strong>
Well maybe they will just post an errata sheet and add 512k L2</strong><hr></blockquote>
Huh? You expect Apple to list a typographical erratum made by the web-monkey???
<img src="confused.gif" border="0">
The 7447 would be appropriate for the consumer machines which don't have L3 caches anyhow. I know Apple hasn't used these variations in the past, but that doesn't mean they'll never consider it.
<strong>Earliy in this thread, there is a post with a link to the new motorola pdf on the 7457. After looking over it again I have realized that it says the 7457 only has a 166Mhz bus. I thought the 7457 was supposed to have a 200mhz bus. Whats up here?
It also says "up to 1.3 GHz," but we know better than that, don't we?
<strong>The 7455 is only listed as having a 133 MHz system bus. We know it's capable of 166 MHz. Motorola's really holding back a lot of information of the 7455 and it's reasonable to think they are doing the same for 7457. This early in the game we probably won't see the whole picture since it's not given to us.</strong><hr></blockquote>
My info says it can, ideed, run a 200MHz bus.
<strong>Earliy in this thread, there is a post with a link to the new motorola pdf on the 7457. After looking over it again I have realized that it says the 7457 only has a 166Mhz bus. I thought the 7457 was supposed to have a 200mhz bus. Whats up here?
apple buy's all cpu's faster than 1.3 Mhz (with the faster bus). so the only cpu's motorola has left to sell in sufficient quantities are the slower ones.
in the mean time apple is stock pilling these chips for (another) updated summerline pm/imac/powerbook in about 4-6 months
<strong>
If they are, then Apple's tech specs page has an error, since they mention their G4s have 256K of L2 instead of 512K. Maybe somebody with a new 2x1250 MHz G4 can pull off his heatsink and look at the stamp?</strong><hr></blockquote>
Anybody have any idea how much performance improvement 512K of L2 will make over 256K L2? Where will the improvements be seen?
It really seems like all smoke and shadows to me. When are we going to get some real updates? Like the 970 or even the 7457. Maybe this summer or later. Who knows but I'm telling you smoke and shadows, smoke and shadows.
<strong>Apple have never in the past used these 744x-processors.</strong><hr></blockquote>
I found XC7445A RX867WF in PowerBook 12".
[ 02-10-2003: Message edited by: Henriok ]</p>
I found XC7445A RX867WF in PowerBook 12".</strong>
Really? You would be the 1st recorded instance of Apple using a 744x G4. Interesting. You found out through a CPU checker program or taking apart your AlBook?
<a href="http://finance.lycos.com/home/news/story.asp?story=31437784"; target="_blank">Moto 7447 & 7457 press release</a>
(edit: Sorry, I jumped the gun. Sampling now, production in Q4 2003. Go IBM!!!!)
[ 02-10-2003: Message edited by: CodeWarrior ]</p>
<strong>
Anybody have any idea how much performance improvement 512K of L2 will make over 256K L2? Where will the improvements be seen?</strong><hr></blockquote>
Well, if you're AMD and desperate, it makes a big marketing difference. <img src="graemlins/lol.gif" border="0" alt="[Laughing]" />
A AMD Athlon XP 2250 MHz w/256KB cache has a Quantispeed rating of 2800+
A AMD Athlon XP 2167 MHz w/512KB cache has a Quantispeed rating of 3000+
<img src="graemlins/lol.gif" border="0" alt="[Laughing]" /> <img src="graemlins/lol.gif" border="0" alt="[Laughing]" /> <img src="graemlins/lol.gif" border="0" alt="[Laughing]" />
Tom's Hardware, Tech Report, etc. are not amused...especially when the old 2800+ beats the 3000+ in a majority of their benchmarks
<strong> If motorola claims that the 7455 can only go 1Ghz, but apple has them going 1.42Ghz, I imagine Motorola's claim that the 7457's top speed is 1.3ghz is incorrent. Do you think we will see 1.6Ghz 7457 soon? </strong><hr></blockquote>
Motorola claimed the 7455A to run 1GHz @ 1.3V. They didn't officially tell us the speed the 1.85V versions can reach. But I can remember a product bulletin from June 2002 where they listet "XC7455ARX1167PCR", "XPC7455RX1100PC" and "PPC7455RX1067PB" (where XC is preproduction and PPC is full production, P = 1.85V/65°C).