View Full Version : Sahara G3 has 200MHZ bus but being held back at 100MHZ and also a 1.5GHZ G3 in works!
david2371
Jul 24, 2002, 08:42 AM
IBM's info says the PowerPC 750FX has a 200MHZ bus and support for an external L3 cache.I find it frustrateing that the G3's full potential is being wasted because moble G4's and even desktop G4's are nearing their limits.The Sahara G3 in the new 700MHZ iBOOKS can be set to 800MHZ using software.Geek.com also shows the PowerPC 760 AKA G3e having a clock speed of 1.5GHZ and being ready by the second half of 2001.So either its a false statement or IBM cut development because it wouldent be used.If IBM can produce G3's like the SAHARA when the G3 is being phased out then imagine what IBM could do with the G3 if apple was more interested in it.I for one think the G3 is a better chip then the G4 as it holds it's own even without altivec.It's sad that the G4's blunders hinder the G3's sucess.I think a machine with a 1GHZ G3 200MHZ bus and a Geforce 4 graphics card would give many current macs a run for their money.
just my 2 cents
david2371
Jul 24, 2002, 08:52 AM
Oh and if the motherboard was built for it the sahara can use upto 400MHZ DDR-RAM
iGav
Jul 24, 2002, 09:03 AM
All good and well... but we really don't know what Motorola have in the works for the G4....... I'm sure that such a revision of the G3 chip is indeed fine........ but there are certain things that the G4 has going for it... (more so if we believe what the next G4 revision is going to include) Altivec is an unanswerable boom over the the G3..... as is it's capability to be dual configured....... (not sure whether IBM have made this possible with the G3 yet...) Ultimately though the whole PPC thing would be much better if Apple, IBM and Motorola started working properly together again....... they really need to plan the future of the PPC...... otherwise it's just gonna go under...... and that would be such a shame.......:(
ftaok
Jul 24, 2002, 09:20 AM
If the 1ghz G3 was ready, then someone would be using it. Even IBM doesn't use it.
IBM tends to release information about their chips way in advance. They were talking about a 1ghz G3 (in Press Releases) last November, but it wasn't until May 2002 that we saw a 700mhz G3 (Sahara) being used.
I'm not certain if a 1Ghz G3 will ever be used by anyone.
BTW, I would trust anything I found on Geek.com. Just my opinion.
daveg5
Jul 24, 2002, 09:52 AM
actually it would be faster than the g4s and just look at the ibook with 16MB vram compared to powerbook with 800 and 32 MBVRAM at www.barefeats.com and you will see what i mean. i mean who in the right mind would want a 1GHZ g4 powerbook g4 when they can have a 1.5ghz g3 that runs faster than it at everything, runs cooler, and uses less battery power. However marketing wont allow Apple to offer this set-up. maybe an upgrade manufactuer will offer 1.5 GHZ upgrades based on this chip soon for lombards and pismos and g4 powerbooks. there cheaper than g4s will keep the power book cooler and batteries running longer. if IBM could get moto to let it use altivec on these chips and they could multi process we would be at 1.5 in a few months and probably fanless. as it stands now this is the ultimate setup for notebooks. apple please take a second look at the higher clock speeds cause i want a cheaper and cooler{literally speaking} notebook.
peace
ftaok
Jul 24, 2002, 09:59 AM
Originally posted by daveg5
actually it would be faster than the g4s and just look at the ibook with 16MB vram compared to powerbook with 800 and 32 MBVRAM at www.barefeats.com and you will see what i mean. i mean who in the right mind would want a 1GHZ g4 powerbook g4 when they can have a 1.5ghz g3 that runs faster than it at everything, runs cooler, and uses less battery power. However marketing wont allow Apple to offer this set-up. maybe an upgrade manufactuer will offer 1.5 GHZ upgrades based on this chip soon for lombards and pismos and g4 powerbooks. there cheaper than g4s will keep the power book cooler and batteries running longer. if IBM could get moto to let it use altivec on these chips and they could multi process we would be at 1.5 in a few months and probably fanless. as it stands now this is the ultimate setup for notebooks. apple please take a second look at the higher clock speeds cause i want a cheaper and cooler{literally speaking} notebook.
peace First of all, the 1.5ghz G3 doesn't exist (let alone a 1ghz one. Secondly, Motorola has offered to liscense Altivec to IBM. It's just that IBM doesn't want to use it (for whatever reason).
BTW, I just looked at the charts comparing the PB DVI to the Sahara iBooks. It looks like the PB beat the iBook in every category except the Bryce test. So what's your point?
david2371
Jul 24, 2002, 12:04 PM
The only thing the G4 has going for it is altivec and only a hand full of apps support it.Its kinda like winning a fight cause you got your big bad friend to back you up.The G3 dosent need altivec to kick ass and without altivec the G4 is nothing.The G4 has been nothing but a dissapointment since the day it was released.It lags behind even the G3 in bus speed and ram capabilitied and in non altivec things AKA most apps in exsistance a 700MHZ sahara would wipe the floor with a 700MHZ G4.A sahara at 800MHZ uses less power than a 350MHZ G4.The sahara at 800MHZ takes 4WAtts where as a 667MHZ G4 uses 17.5 and a 1GHZ G4 uses 21.5Watts.
nuckinfutz
Jul 24, 2002, 12:19 PM
Originally posted by david2371
The only thing the G4 has going for it is altivec and only a hand full of apps support it.Its kinda like winning a fight cause you got your big bad friend to back you up.The G3 dosent need altivec to kick ass and without altivec the G4 is nothing.The G4 has been nothing but a dissapointment since the day it was released.It lags behind even the G3 in bus speed and ram capabilitied and in non altivec things AKA most apps in exsistance a 700MHZ sahara would wipe the floor with a 700MHZ G4.A sahara at 800MHZ uses less power than a 350MHZ G4.The sahara at 800MHZ takes 4WAtts where as a 667MHZ G4 uses 17.5 and a 1GHZ G4 uses 21.5Watts.
G3 versus G4 (http://www.xlr8yourmac.com/G3CARDS/XLR8G4/G4vsG3.html)
David this has been gone over since the introduction of the G4. Read this link above.
The 200mhz bus you claim is a fallacy. Apple has a Memory controller and it simply doesn't support DDR yet it doesn't matter what theoretically the G3 can do.
Both processors had a 4 stage pipeline..the G4+ had a core change and went to 7 stages which allowed Moto to add a %50 speed increase from 500Mhz to 733mhz. IBM has been claiming that they can clock the G3 higher making Altivec in the G4 fruitless proposition and they haven't done it.
The G4's faster processing of Double Precision math is reason enough for many to give it preference over a G3.
Your opinion is your opinion but based on readily availabe facts your agruements do not have a strong backing. My opinion is the G3 should have been put out to pasture a while ago. IBM has been RDF'in Clockspeed fanatics with dellusions of grandeur about 1.5Gigahertz G3's. Bollocks!
iGav
Jul 24, 2002, 12:26 PM
Originally posted by david2371
The only thing the G4 has going for it is altivec and only a hand full of apps support it.Its kinda like winning a fight cause you got your big bad friend to back you up.The G3 dosent need altivec to kick ass and without altivec the G4 is nothing.The G4 has been nothing but a dissapointment since the day it was released.It lags behind even the G3 in bus speed and ram capabilitied and in non altivec things AKA most apps in exsistance a 700MHZ sahara would wipe the floor with a 700MHZ G4.A sahara at 800MHZ uses less power than a 350MHZ G4.The sahara at 800MHZ takes 4WAtts where as a 667MHZ G4 uses 17.5 and a 1GHZ G4 uses 21.5Watts.
Don't forget that OSX also recognises and uses Altivec..... and there's alot more than a handful of apps that support Altivec...... so stop speaking ****e..... also when it comes to serious number crunching Altivec is mighty........ there's little point in dissing Altivec really is there??? anything that makes a chip faster is good right??
The current G3 doesn't kick arse....... simple as that..... I'd take the current G4 PowerBook over the iBook anyday of the week...... and all this talk of a hypothetical 1.5GHZ G3 really is a waste of time... because as far as we know it doesn't exist........
nuckinfutz
Jul 24, 2002, 12:37 PM
iDVD alone requires Altivec to encode the MPEG2 data.
Altivec is not going to accelerate everything but the items it does accelerate definitely welcome the additional number crunching.
daveg5
Jul 24, 2002, 12:53 PM
thats my point the lucky sevens test prove the ibook is faster mainy because of the larger cache and smaller pipeline in virtually all test that do not involve alti-vec {ibook 700, imac and emac 700 powerbook 667} or takes advantage of a larger video card and even beats the mighty 800 powerbook at some non altivec tasks. my previous post wasnt to diss the g4 but rather to show apple that they might be missing an opputunity to give us the best, coolest,less battery draining, quietest laptops possible.
Although I know it wont happen I would much rather have a 1.5GHZ g3 powerbook than a 1GHZ g4 powerbook, granted the G4 would be faster at somethings, and what is a G4 its a g3 with altivec and the floating point unit from the 604e(i think). my main point was WOW i wonder if IBM could add ALtivec to this chip and ddr L3cache and multiprocessor support we could probably have a dual sahara g3+altivec 1.5GHZ in a notbook using less watts then a single 1.5 g4. it is only wishful thinking nothing else and another potential option as steve would say.
I'm tired of intel and amd having all the GHZ speed altivec or not
alex_ant
Jul 24, 2002, 03:14 PM
Originally posted by ftaok
If the 1ghz G3 was ready, then someone would be using it. Even IBM doesn't use it.
The 1GHz G3 is ready and shipping. Apple is not using it, but embedded device makers are.
IBM tends to release information about their chips way in advance. They were talking about a 1ghz G3 (in Press Releases) last November, but it wasn't until May 2002 that we saw a 700mhz G3 (Sahara) being used.
Apple is not IBM's only customer. The Sahara G3 was ready before Apple put it in the iBook. Also, the 700MHz G3 in the iBook is an underclocked 800MHz G3, if I'm not mistaken.
Alex
ftaok
Jul 24, 2002, 03:22 PM
Originally posted by alex_ant
The 1GHz G3 is ready and shipping. Apple is not using it, but embedded device makers are.
[/b]
Apple is not IBM's only customer. The Sahara G3 was ready before Apple put it in the iBook. Also, the 700MHz G3 in the iBook is an underclocked 800MHz G3, if I'm not mistaken.
Alex [/B]Are you sure Alex? I was under the impression that the Sahara G3 (750FX) was ONLY being used by Apple. I don't see any press releases stating that the 1Ghz G3 was being shipped.
rice_web
Jul 24, 2002, 04:01 PM
I think that we're missing a point:
Even if the fastest that the 750FX currently goes is 800MHz, it would still be running great if given a 200Mhz system bus and 400MHz DDR memory.
alex_ant
Jul 24, 2002, 04:52 PM
Originally posted by ftaok
Are you sure Alex? I was under the impression that the Sahara G3 (750FX) was ONLY being used by Apple. I don't see any press releases stating that the 1Ghz G3 was being shipped.
Well, the 1GHz G3 is listed right along with all the other 750FX processors on IBM's website. IBM isn't a company known for its vaporware. (http://www-3.ibm.com/chips/products/powerpc/)
Usually press releases are only put out to announce forthcoming chips, not to pin down exact delivery dates. IBM's Sahara press release happened last October.
IBM sells PPCs to whoever wants them, 750FX included. I have no idea who else uses the 750FX, if anyone, but there is no contract that says only Apple can use them. They're available to anyone.
Alex
sparkleytone
Jul 24, 2002, 09:34 PM
anyone who uses the words "only" or "just" in diminutive terms of altivec is smoking some strong *****.
altivec is some serious power that x86 still can't touch yrs later. just take a look at the BLAST results on the XServe as compared to other middle-range server solutions. Altivec simply destroys the competition.
This is relevant because Jaguar will be the great leveraging of Altivec throughout the OS. Even the compiler (GCC 3.1) now has Altivec support. Optimized math libs and multithreading further into the core OS as well as throughout the data process leading to an output device are going to make this thing fly.
I can't wait to read the reactions of current low-end G4 users to Jaguar. I have a feeling its going to be like a computing epiphany.
G4scott
Jul 24, 2002, 11:20 PM
Well, it looks like the iBook is going to stay G3 for a while :D
Seriously, though who needs a superdrive in an iBook? They're consumer machines, so you don't need the altivec for the MPEG-2 encoding... I see the G3 as a simpler, light-weight, yet powerful processor with ample opportunities for Apple in the future... Maybe that new G4 pic will have a 1.5ghz G3 :p
tjwett
Jul 24, 2002, 11:33 PM
Originally posted by sparkleytone
anyone who uses the words "only" or "just" in diminutive terms of altivec is smoking some strong *****.
altivec is some serious power that x86 still can't touch yrs later. just take a look at the BLAST results on the XServe as compared to other middle-range server solutions. Altivec simply destroys the competition.
This is relevant because Jaguar will be the great leveraging of Altivec throughout the OS. Even the compiler (GCC 3.1) now has Altivec support. Optimized math libs and multithreading further into the core OS as well as throughout the data process leading to an output device are going to make this thing fly.
I can't wait to read the reactions of current low-end G4 users to Jaguar. I have a feeling its going to be like a computing epiphany.
due to the lack of AltiVec enabled apps in OSX it would be great to see EVERYTHING taking some advantage of it. if there's anyone out there with a 550 TiBook and Jaguar I'd love to hear how it is for you. My 550 started to feel painfully slow after awhile. If 10.2 can breathe life back into one of those then I'd say it's going to be a very special update indeed.
djwoolf
Jul 25, 2002, 12:27 AM
i find it highly unlikely form a marketing standpoint that apple will revive G3's i know from experience that they cant cut the mustard in OS X im using an iMac DV 400 G4 is the way the software accompaning the hardware is trending
solvs
Jul 25, 2002, 02:16 AM
Other companies use the G3. I think Nintendo uses one on their Gamecubes.
But why view the G3 as competition to the G4? Look at the Celeron/P4 or Duron/Athlon. I think a 1 GHz G3 iBook with a 32MB vid card and 133+ FSB would be perfect for some people. Others would want a 1 GHz PB with 64 MB and DDR.
My Mom could use a G3 e/iMac to surf the web, and type up letters. I would use a G4 Tower to do multimedia stuff.
The G3s are cheaper, cooler, less power hungry, but offer plenty of overall speed, and would be fine for most people.
Beej
Jul 25, 2002, 04:34 AM
As has been discussed many times before, using higher-MHz G3s in consumer Macs than the G4s used in pro Macs would be a PR nightmare. You don't see AMD offering Durons faster than their Athlons, and you don't see Intel offering celery faster than the PIVs.
Fast G3s are nice, but what some of you are talking about just wont happen.
daveg5
Jul 25, 2002, 09:34 AM
My post is not to diss the G4 but rather to get ibm and moto together to add altivec to the ibm G3 which is currently being underclocked and under bussed and under L3 cached and undered DDR memoried, if thats a word.
Because this chip is simply a better laptop chip (if they can add altivec} if they can't or won't as i suppose than apple can in these econimic times have a setup like this soon:
Ibook 800g3 32vram Powerbook ti G3+ 800 +1MBDDR L3cache 32Vram
14" dvd/cdrw $149930GB 15.2" dvd/cdrw $199940GB
Ibook 900g3 32vram Powerbook ti G4 900 +1MBDDR L3 cache 64Vram
14" dvd/cdrw $169940GB 15.2dvd/cdrw $2499 60GB
Powerbook ti 1GHZ +2MB L3cache 64Vram+free case
15.2 Superdrive$3199 60GB 8meg buffer
Their are a ton of people who want the ibook but only with 32 vram for quartz extreme, and just as many that want a ti book for under $2000, and many dont really need altivec.
The sahara should be a superb chip for upgrade manufactuers. Just think by next year you could have possibly fanless older imacs, cubes,{100MHZ bus models}, powerbooks, lombards, and pismos, titaniums, not to metion new and old wolrd macs, provided they could get the multiplier up there, All running at between 1-1.5 GHZ and all at between $300-$500 because this chip is much cheaper than the G4.
peace
rice_web
Jul 25, 2002, 09:38 AM
The Sahara supports a 200x multiplier, as opposed to the original G4s 10x the system bus. Getting the multiplier up should be no problem.
sparkleytone
Jul 25, 2002, 10:43 AM
Originally posted by Beej
As has been discussed many times before, using higher-MHz G3s in consumer Macs than the G4s used in pro Macs would be a PR nightmare. You don't see AMD offering Durons faster than their Athlons, and you don't see Intel offering celery faster than the PIVs.
Fast G3s are nice, but what some of you are talking about just wont happen.
how many times are people going to say this. its been happening for a while now and no PR disasters. look. 700MHz iBook...667MHz TiBook. There it is.
jefhatfield
Jul 26, 2002, 12:21 AM
Originally posted by ftaok
If the 1ghz G3 was ready, then someone would be using it. Even IBM doesn't use it.
IBM tends to release information about their chips way in advance. They were talking about a 1ghz G3 (in Press Releases) last November, but it wasn't until May 2002 that we saw a 700mhz G3 (Sahara) being used.
I'm not certain if a 1Ghz G3 will ever be used by anyone.
BTW, I would trust anything I found on Geek.com. Just my opinion.
hey ftaok, long time no see!
a lot of rumors are out there hoping that the ibm g3 will save the mac due to its current slow clock speed compared to the pc world
if there was a running 1 ghz sahara chip, in this case a mobile version which should be out by now according to rumors about the 1.5 desktop version, i think ibook would use it straight away to increase sales
the pros would still stay with the tibook with more ports, altivec, and sleek titanium look
ftaok
Jul 26, 2002, 05:41 AM
Originally posted by jefhatfield
hey ftaok, long time no see!
a lot of rumors are out there hoping that the ibm g3 will save the mac due to its current slow clock speed compared to the pc world
if there was a running 1 ghz sahara chip, in this case a mobile version which should be out by now according to rumors about the 1.5 desktop version, i think ibook would use it straight away to increase sales
the pros would still stay with the tibook with more ports, altivec, and sleek titanium look jef,
Personally, I think the 1ghz G3 may be ready (although I haven't heard of it being used by anyone). And I can't imagine that IBM's current customers for 750-series chips (mainly printer OEMs) have a real need for a 1Ghz chip. I don't think that there is 1.5Ghz coming soon. IBM hasn't even issued a press release on it (they tend to announce stuff WAY in advance).
I was wrong about the iBook getting a G4 before, but I can't see Apple continuing with the G3 for very much longer. Since we didn't see a new PowerMac at MWNY, I think that when they do announce the new PMacs, they'll be pretty snazzy. The TiBook could see a bump to 1 (or 1.2 if the PowerMacs get dual-1.6). Then they could put an 800mhz 7445 (Apollo with no L3) into the iBook.
NOTE: these are all conjectures based only on voodoo and black magic.
BTW jef, good luck on your goal of 160.
BTW2, I was posting a lot more often a few months ago, but some of the "heavy posters" have turned this board into a warzone. It's not as fun as it used to be. I'm mainly on "lurking" mode these days.
BTW3, GO DREXEL!
david2371
Jul 26, 2002, 06:52 AM
Apple wouldent give the iBOOK a 1GHZ G3 right now because the G4 TI BOOK is only at 800MHZ and apple dosent make consumore machines with higher MHZ then pro ones because a 1GHZ iBOOK would take sales from the 800MHZ Ti BOOK.The 700MHZ chip in the ibook is actually an 800MHZ chip downclocked to 700MHZ.
ftaok
Jul 26, 2002, 07:05 AM
Originally posted by david2371
Apple wouldent give the iBOOK a 1GHZ G3 right now because the G4 TI BOOK is only at 800MHZ and apple dosent make consumore machines with higher MHZ then pro ones because a 1GHZ iBOOK would take sales from the 800MHZ Ti BOOK. The 700MHZ chip in the ibook is actually an 800MHZ chip downclocked to 700MHZ. Apple has had the iBook at higher mhz than the TiBook before, so that's not an issue.
Also, saying that the 700mhz G3 in the iBook is a downclocked 800mhz chip is like saying that the 1ghz G4 is a downclocked 1.2ghz G4. You have to realized that these chips are sampled and then speed rated. You can have a 700mhz chip that is stable at 800mhz, but you could also fry it as well.
jefhatfield
Jul 26, 2002, 08:43 AM
Originally posted by ftaok
jef,
Personally, I think the 1ghz G3 may be ready (although I haven't heard of it being used by anyone). And I can't imagine that IBM's current customers for 750-series chips (mainly printer OEMs) have a real need for a 1Ghz chip. I don't think that there is 1.5Ghz coming soon. IBM hasn't even issued a press release on it (they tend to announce stuff WAY in advance).
I was wrong about the iBook getting a G4 before, but I can't see Apple continuing with the G3 for very much longer. Since we didn't see a new PowerMac at MWNY, I think that when they do announce the new PMacs, they'll be pretty snazzy. The TiBook could see a bump to 1 (or 1.2 if the PowerMacs get dual-1.6). Then they could put an 800mhz 7445 (Apollo with no L3) into the iBook.
NOTE: these are all conjectures based only on voodoo and black magic.
BTW jef, good luck on your goal of 160.
BTW2, I was posting a lot more often a few months ago, but some of the "heavy posters" have turned this board into a warzone. It's not as fun as it used to be. I'm mainly on "lurking" mode these days.
BTW3, GO DREXEL!
thanks for the encouragement...the last ten pounds is always tough
i see some life in the g3 since it has a huge 512k level two cache on the chip that runs at processor speed
i can see the g3 in the ibook through at least october then switching to g4 for christmas or at mwsf...hopefully
but if need be, apple could probably hold off the g4 in the ibook until second quarter 2003
if the g3 makes it past that, then it will certainly scale well above 1 ghz and deserve a place in the apple lineup
daveg5
Jul 26, 2002, 10:34 AM
there is a 1ghz g3 available now for purchase in lots of 10000
there been a 1 ghz ti g4 spotted
apple will not let a 1 GHZ g3 ibook out until they have a 1GHZ g4 tibook out
and then they will underclock it to 900 just like they are doing with the ibooks now 700=800=700. or the ibook would possibly beat the powerbook at all non altivec/videocard based benchmarks
Does anyone out there have a 700 ibook software realclocked to 800mhz if so can we have somebenchmarks
peace
ftaok
Jul 26, 2002, 10:37 AM
Originally posted by daveg5
there is a 1ghz g3 available now for purchase in lots of 10000
Dave,
do you have this information published somewhere? I'm very curious to the pricing of the Sahara G3.
daveg5
Jul 26, 2002, 11:23 AM
oops my bad, i can almost swear I read about thier release and prices somewhere . however there website is so confusing and does not seem to give that info even on the 700mhz but if my memory is correct the 700 is under $100 in large quantities.
If any one else has info as to were ibm has their prices posted for the 750 series please post. my oops
peace
daveg5
Jul 26, 2002, 11:37 AM
does anyone know for sure whether the ibook 700 is underclocked or not
I think it is because I know of no other powerpc processor that lets you up the clock speed thru software. actually is there any way to prove it one way or another? I guess only Apple and IBM know for sure and I doubt they they would admit it because if they say yes they would possibly be liable for any failed overclocked machine
Catfish_Man
Jul 26, 2002, 01:13 PM
Originally posted by daveg5
does anyone know for sure whether the ibook 700 is underclocked or not
I think it is because I know of no other powerpc processor that lets you up the clock speed thru software. actually is there any way to prove it one way or another? I guess only Apple and IBM know for sure and I doubt they they would admit it because if they say yes they would possibly be liable for any failed overclocked machine ...if you mean it's capable of running at a higher clock frequency, then you're right. ALL chips are underclocked then. I've never heard of a chip that you couldn't overclock at all. The 750fx just lets you do it in software like some x86 chips.
To the person who was saying it would be nice if all apps took advantage of Altivec: Guess what, they do. Many parts of the OSX libraries/APIs/etc... are Altivec accelerated. For example, anything that uses Quartz (all non-java, non-quickdraw programs) is automatically slightly boosted by Altivec. I'm a little unclear on why people keep bashing Altivec, it's the only part of the G4+ that's still ahead of the competition.
To all the people saying the 750fx is better than the 7455 (G4+): It's a smaller, less sophiscated chip that happens to be made on a better manufacturing process. This allows for higher clock frequencies, lower power, and larger cache. When the G4+ goes .13 micron it'll have everything the 750fx has, plus Altivec, plus better cache, plus higher clock frequencies, plus a better FPU.
Also, the revision of the 750fx in the iBook is 1.2, last I heard. The 1GHz one that supports a 200MHz Single Data Rate bus is 2.0
matador
Jul 26, 2002, 02:19 PM
Apple could theoreticall, rename the Ti PowerBook to Simply PowerBook Titanium and attach dual g3's. I am not exactly what it would take to do that, but they could still keep the iBooks at 1ghz and the Pro version at dual processors. (which in battery mode, would only use one processor to presserve life).
It took intel a long time to come out with a P4 mobility, so it might be easier and faster to put 2 g3's in a powerbook with ddr. and I can guarantee you that people would buy.
alex_ant
Jul 26, 2002, 04:43 PM
Originally posted by matador
Apple could theoreticall, rename the Ti PowerBook to Simply PowerBook Titanium and attach dual g3's. I am not exactly what it would take to do that, but they could still keep the iBooks at 1ghz and the Pro version at dual processors. (which in battery mode, would only use one processor to presserve life).
It took intel a long time to come out with a P4 mobility, so it might be easier and faster to put 2 g3's in a powerbook with ddr. and I can guarantee you that people would buy.
That would be a good idea, but the G3 doesn't support multiprocessing.
matador
Jul 26, 2002, 09:08 PM
that could change though..
jefhatfield
Jul 26, 2002, 09:12 PM
Originally posted by matador
that could change though..
the only place i know of where the g3 is multiprocessor is in some models of the long-lived IBM AS 400 server computer...i have a major client with some of those machines
as to whether the g3 could be put into an ordinary desktop machine as a dualie may be a different matter
from what i have heard several times here, the g3 incarnation used in apple machines is only a single processor g3
daveg5
Jul 26, 2002, 09:47 PM
What i meant was i heard rumors, probably not true, that the 600 and 700MHZ chips in the current Ibooks are really 700 and 800 chips, the old imac g3 ended at 700 MhZ, and the new sahara g3-512cache starts at 700MHZ, but Apple may have purposely bought tons a 700 and 800 chips, but faster mobile g4 chips were behind schedule, and they did not want the IBOOK to outbench the POWERBOOK in all things non altivec/videoram related, which a 800MHZ Ibook would certaily do, so they, in software, took them down a hundred MHZ, and when the 1GHZ G4 is released, wallah! they will put them up a hundred. No new chips to buy no new parts to assemble, if true it would be quite clever.
Obviously, this is far fetch but stranger things have happened that I never thought would happen, like our $129 upgrade to 10.2 and $49-$99 versions of itools , extra-cost mpeg4 for Quicktime pro users, Apple talk of using password sercurity{ala microsoft} and MOTO's inability tocache up to AMD-INTEL in processor speed. its 20021/2 and will still dont have a single processor mac at 1GHZ,gee.
I agree with you that all or almost all chips are underclocked to some degree for stable operation but by the same token all chips are overclocked for speed
i know i overclocked my g450MHZ upgrade card on my 8600, but to do so I had to underclock my cache and vice versa until a fast stable setting was found.
peace
alex_ant
Jul 26, 2002, 09:51 PM
Originally posted by jefhatfield
the only place i know of where the g3 is multiprocessor is in some models of the long-lived IBM AS 400 server computer...i have a major client with some of those machines
as to whether the g3 could be put into an ordinary desktop machine as a dualie may be a different matter
from what i have heard several times here, the g3 incarnation used in apple machines is only a single processor g3
Are you sure those were PPC 750s? I thought they were PPC RS64s or Power2s / 3s or 604e's or something.
bousozoku
Jul 26, 2002, 11:18 PM
Originally posted by iGAV
Don't forget that OSX also recognises and uses Altivec..... and there's alot more than a handful of apps that support Altivec...... so stop speaking ****e..... also when it comes to serious number crunching Altivec is mighty........ there's little point in dissing Altivec really is there??? anything that makes a chip faster is good right??
The current G3 doesn't kick arse....... simple as that..... I'd take the current G4 PowerBook over the iBook anyday of the week...... and all this talk of a hypothetical 1.5GHZ G3 really is a waste of time... because as far as we know it doesn't exist........
Well, there may be two handfulls of applications which support AltiVec, including those from Apple. I've gone through the documentation and it's a big deal to set up.
Obviously, some applications benefit such as audio and video encoding. Blast took a lot of work to use AltiVec well.
Besides all this, AltiVec doesn't support double precision floating point (real) numbers, so the pared-down floating point unit has to handle them...slowly.
bousozoku
Jul 26, 2002, 11:21 PM
Originally posted by jefhatfield
the only place i know of where the g3 is multiprocessor is in some models of the long-lived IBM AS 400 server computer...i have a major client with some of those machines
as to whether the g3 could be put into an ordinary desktop machine as a dualie may be a different matter
from what i have heard several times here, the g3 incarnation used in apple machines is only a single processor g3
The AS/400 database machine originally used the PowerPC AS processor, which was a version of the PowerPC 620...the first 64-bit processor in the line.
Later, it used versions of the Power2 and Power3 processors.
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