1.5GHz PowerMac
i just saw that some people have successfully overclocked a DP 1.25 to 1.5GHz. Possibility of a small speed bump before 2003?
Link: <a href="http://forums.macrumors.com/showthread.php?s=b3b74aa65c9e6bdf27af072d8d7d7cca& threadid=12067" target="_blank">http://forums.macrumors.com/showthread.php?s=b3b74aa65c9e6bdf27af072d8d7d7cca& threadid=12067</a>
The new models could line up like this:
[ 10-02-2002: Message edited by: Stoo ]</p>
Link: <a href="http://forums.macrumors.com/showthread.php?s=b3b74aa65c9e6bdf27af072d8d7d7cca& threadid=12067" target="_blank">http://forums.macrumors.com/showthread.php?s=b3b74aa65c9e6bdf27af072d8d7d7cca& threadid=12067</a>
The new models could line up like this:
[ 10-02-2002: Message edited by: Stoo ]</p>
Comments
<strong>The new models could line up like this:</strong><hr></blockquote>
tasty
[ 10-02-2002: Message edited by: Telomar ]</p>
Right, fixed that. All three models have the same bus, 166MHz. I didn't bother with the 56k internal modem, but it'll probably still be there are broadband is nowhere near universal anywhere.
[ 10-02-2002: Message edited by: Stoo ]</p>
<strong>Is cool that they can go faster but lets face it, Apple just dont speed bump stuff that soon after releasing it. "Sigh" Thinks how cool dual 1.5ghz would be... </strong><hr></blockquote>
Wouldn't it be just as cool as a dual 1.25GHz but about 10-20% faster in some cases?
[ 10-02-2002: Message edited by: I-bent-my-wookie ]</p>
Well we only have to wait until the 7th january to find out what Apple has in store.
<a href="http://arstechnica.infopop.net/OpenTopic/page?q=Y&a=tpc&s=50009562&f=8300945231&m=994091243 5&p=2" target="_blank">Ars</a>
<strong>Would Apple release be hesitant to release a G4 at 1.5ghz if they had a new processor, say Power4 derivitive that clocked at only 1.5ghz in the pipeline?
Well we only have to wait until the 7th january to find out what Apple has in store.</strong><hr></blockquote>
If that GPUL was a Multi-Core chip with a better FSB and showed sugnifigant performance increase over the 1.5 G4 then there would be nothing holding the G4's release up. If it didnt perform better than the G4 then they might hold back on the G4. However the GPUL is suposed to perform much better than the G4, have a faster FSB, and possibly be multi-cored as well. Given this, and Apple's loosing marketing battle with the PowerMacs I doubt that Apple would have held back on a 1.5 ghz chip if they had it available in quantity.
<strong>wher does it say it wasn't successful??
<a href="http://arstechnica.infopop.net/OpenTopic/page?q=Y&a=tpc&s=50009562&f=8300945231&m=994091243 5&p=2" target="_blank">Ars</a></strong><hr></blockquote>
Woops, I mixed up two posts. There was one attempt at a software overclock from 867 to 1000 and the attempt from 1.25-->1.33-->1.5. tobglyn does mention that 1.5 GHz causes apps to crash though.
<strong>Why would Apple decrease the FSB 167Mhz to 166Mhz?</strong><hr></blockquote>
It's 166.66666
rounded to 167, or 166 depending on your fancy.
If apple were to release those machines, there probably wouldn't be a lvl 3 cache on the low end (if there was, it would be smaller than the others)
<strong>Why would Apple decrease the FSB 167Mhz to 166Mhz?</strong><hr></blockquote>
its not 167 now. its 166.66
every other computer company rounds it to 166. but apple had to be "different" and round up instead of down like the rest of the PC industry
x.0 - x.49 = x
x.5 - x.99 = x+1
the wintel world rounds down cos they are retarded and are afraid they might get sued when ppl realise that their 267Mhz bus actually runs 0.333333333333333333Mhz slower than they were told by the sales-rep.
[ 10-03-2002: Message edited by: g::masta ]</p>
[code] //rounds a double to the nearest integer
int round(double x)
{
\treturn x >= 0 ? (long)(x+0.5) : (long)(x-0.5);
} </pre><hr></blockquote>
Getting back on topic, what multipliers does the G4+ (7455) support? I'd reckon that it supports the 9x required for 1.5GHz on a 166 2/3MHz bus and probably higher.
[ 10-03-2002: Message edited by: Stoo ]</p>