[Eug Wanker]

From this Forbes article:

Apple CEO Steve Jobs has already gone on the record saying that the G5 computer will contain PowerPC chips that run at 3 GHz by the summer of 2004. A mid-step between the current systems, which top out with two chips running at 2 Ghz, and systems with chips as fast as 2.6 GHz would be a logical move come January, says Peter Glaskowsky, analyst with Instat/MDR, San Jose, Calif. and editor-in-chief of the influential newsletter Microprocessor Report.

"Speeds of 2.4 to 2.6 GHz would be consistent with exactly where I would expect them to be right now," Glaskowsky says.

[DBvader]

yep, thats what everyons is saying lately. Thats really exciting, well at least to me, becuase at this rate IBM will catch up to Intel in the freq race in about a year. I also wonder what freqs intel expects when they move to 90 nm process.

[mac freak]

Note: This is nothing but "analysts" averaging 2.0 and 3.0, then making that number into a range (2.4 - 2.6). Nothing real here Just expectations. I predict 2.4 at the high end, shipping in ~March.

[applenut1]

O ****!

NOW YOU'VE DONE IT.

MACNN IS GONNA GET BLACKLISTED BECAUSE OF YOU.

attention asshole, come close this before apple spanks you.

[saru boy]

Originally posted by DBvader:
I also wonder what freqs intel expects when they move to 90 nm process.

The first 90nm Prescotts will be Socket 478 and will later be shifted to 775 pin parts later in 2004. Expect speeds to hit the mid to high 4GHZ range for the first gen Prescotts (before the shift to the pinless 775 socket).

I wonder what the bus speed will be for the faster G5s. The fastest DDR RAM sold now is PC4200, which runs at DDR533mhz (or 1066mhz when you run in dual sets). I guess if they continue to use the 2.5 multiplier that the current G5 2.0GHZ machines use, we could see 2.67GHZ with PC4200 memory (533mhz, 1066mhz FSB) and 2.5GHZ with PC4000 memory (500mhz, 1000mhz FSB).

Of course, PC4200 memory isn't exactly mainstream, so Apple may well decide to stick with PC3200 and increase the multiplier. A multiplier of 3 would result in 2.4GHZ if you used PC3200 memory (400mhz, 800mhz FSB).

[King Chung Huang]

Originally posted by applenut1:
O ****!

NOW YOU'VE DONE IT.

MACNN IS GONNA GET BLACKLISTED BECAUSE OF YOU.

attention asshole, come close this before apple spanks you.

LOL!

[kupan787]

Originally posted by saru boy:
The first 90nm Prescotts will be Socket 478 and will later be shifted to 775 pin parts later in 2004. Expect speeds to hit the mid to high 4GHZ range for the first gen Prescotts (before the shift to the pinless 775 socket).

I wonder what the bus speed will be for the faster G5s. The fastest DDR RAM sold now is PC4200, which runs at DDR533mhz (or 1066mhz when you run in dual sets). I guess if they continue to use the 2.5 multiplier that the current G5 2.0GHZ machines use, we could see 2.67GHZ with PC4200 memory (533mhz, 1066mhz FSB) and 2.5GHZ with PC4000 memory (500mhz, 1000mhz FSB).

Of course, PC4200 memory isn't exactly mainstream, so Apple may well decide to stick with PC3200 and increase the multiplier. A multiplier of 3 would result in 2.4GHZ if you used PC3200 memory (400mhz, 800mhz FSB).

If I remember correctly, the FSB can run at a 1:1, 1:2, 1:4, or a 1:6 multiplier. So 3 isn't possible (currently Apple uses the 1:2). However, memory speed and FSB speed can be completly different (like they are now). Right now the top end G5 has a "memory speed" of 800MHz, and a FSB of 1GHz. So Apple has a few options in terms of memory for the future:

PC3200 (800MHz) - 2x512MB avg cost $265.00
PC3500 (866MHz) - 2x512MB avg cost $265.00
PC3700 (933MHz) - 2x512MB avg cost $275.00
PC4000 (1000Mhz) - 2x512MB avg cost $330.00
PC4200 (1066MHz) - 2x512MB avg cost $385.00
PC6400 (1334MHz) - not shipping unil 2004

The first 4 can be found from some big name manufactors. If Apple used any, I bet it would be PC3700 or PC4000...

[saru boy]

I wish Santa would drop a couple of PC4200 sticks into my stocking.

[billybob128]

would pc4200 work right in the g5

[saru boy]

Originally posted by billybob128:
would pc4200 work right in the g5

Yes, it would work, but it'd be a waste. It'd be like using PC133 ram in a computer that requires PC100 ram. Any ok $70 value PC3200 ram will work fine in a G5 since you're not going to be overclocking it. (For instance, I have some $70 GeIL PC3200 DDR400mhz ram in my PC running at 420mhz/840mhz dual without any problems at all. That's more than sufficient for a G5.)

I'm talking more about sticking PC4200 RAM onto my Asus board and overclocking that to 1000mhz FSB (and my 2.8Ghz P4 running 1:1 at 3.5Ghz). Then bust out the marshmallows and toast them over the resulting fire...

[starman]

Forbes vs. ThinkSecret - on PPV .

Mike

[Eug]

Originally posted by mac freak:
Note: This is nothing but "analysts" averaging 2.0 and 3.0, then making that number into a range (2.4 - 2.6). Nothing real here Just expectations. I predict 2.4 at the high end, shipping in ~March.

Yeah, that's what we've been saying all along. We'll I've been predicting 2.4-2.5 anyway.

Originally posted by kupan787:
If I remember correctly, the FSB can run at a 1:1, 1:2, 1:4, or a 1:6 multiplier. So 3 isn't possible (currently Apple uses the 1:2). However, memory speed and FSB speed can be completly different (like they are now). Right now the top end G5 has a "memory speed" of 800MHz, and a FSB of 1GHz. So Apple has a few options in terms of memory for the future:

PC3200 (800MHz) - 2x512MB avg cost $265.00
PC3500 (866MHz) - 2x512MB avg cost $265.00
PC3700 (933MHz) - 2x512MB avg cost $275.00
PC4000 (1000Mhz) - 2x512MB avg cost $330.00
PC4200 (1066MHz) - 2x512MB avg cost $385.00
PC6400 (1334MHz) - not shipping unil 2004

The first 4 can be found from some big name manufactors. If Apple used any, I bet it would be PC3700 or PC4000...

3X is possible. IBM has already confirmed that 3X is possible. They have not confirmed half multipliers though, so we don't know for sure if 2.5X or 3.5X are possible, but I'm guessing they are.

As for DDR memory above 400/800 MHz, none of it is actually adherent to a standard, because such a standard does not exist. So I don't expect Apple to put out a Power Mac that will run PC4000 DDR memory, ever. IOW, PC3200 is the end of the line (unless the official standards are changed). Faster memory in new Power Macs (not by January 2004 though) will likely be DDR2 at 500 MHz or something like that.

Originally posted by saru boy:
The first 90nm Prescotts will be Socket 478 and will later be shifted to 775 pin parts later in 2004. Expect speeds to hit the mid to high 4GHZ range for the first gen Prescotts (before the shift to the pinless 775 socket).

I wonder what the bus speed will be for the faster G5s. The fastest DDR RAM sold now is PC4200, which runs at DDR533mhz (or 1066mhz when you run in dual sets). I guess if they continue to use the 2.5 multiplier that the current G5 2.0GHZ machines use, we could see 2.67GHZ with PC4200 memory (533mhz, 1066mhz FSB) and 2.5GHZ with PC4000 memory (500mhz, 1000mhz FSB).

Of course, PC4200 memory isn't exactly mainstream, so Apple may well decide to stick with PC3200 and increase the multiplier. A multiplier of 3 would result in 2.4GHZ if you used PC3200 memory (400mhz, 800mhz FSB).

The memory bus speed is irrelevant of course. I also agree that that Apple will stick with PC3200, but there is no requirement of a 3X multiplier for a 2.4 GHz part. Indeed, I'd expect either a 2X multiplier or a 2.5X multiplier. ie:

2X
Dual 2.5 GHz G5 with 1.25 GHz FSB (and 800 MHz memory bus)
Dual 2.25 GHz G5 with 1.125 GHz FSB
Single 2.0 GHz G5 with 1 GHz FSB

OR

2.5X
Dual 2.5 GHz G5 with 1 GHz FSB (and 800 MHz memory bus)
Dual 2.25 GHz G5 with 900 MHz FSB
Single 2.0 GHz G5 with 800 MHz FSB

[saru boy]

Originally posted by Eug:
The memory bus speed is irrelevant of course. I also agree that that Apple will stick with PC3200, but there is no requirement of a 3X multiplier for a 2.4 GHz part.

Yeah, I was just thinking it would be nice if the FSB were at a 1:1 ratio with the memory. Right now it's at 5:4 for the 2.0GHZ G5s (1000mhz FSB/800mhz memory).

Also, I may be wrong, but wasn't PC3200 a "non" standard when it first came out, and was later adopted as a standard?

It would still be sweet to see faster memory...imagine - 8.4 GB/s of (theoretical) throughput with PC4200.

[Eug]

Originally posted by saru boy:
I may be wrong, but wasn't PC3200 a "non" standard when it first came out, and was later adopted as a standard?

It would still be sweet to see faster memory...imagine - 8.4 GB/s of (theoretical) throughput with PC4200.

Yeah, IIRC, PC3200 wasn't initially a "standard" either, but was later approved as a standard. However, that's a different situation, since now DDR2 is close on the horizon.

There's quite a strong possibility that the faster DDR speeds will never become standards, but that it'll go straight from PC3200 DDR to DDR2.

[kupan787]

Originally posted by Eug:
Yeah, IIRC, PC3200 wasn't initially a "standard" either, but was later approved as a standard. However, that's a different situation, since now DDR2 is close on the horizon.

There's quite a strong possibility that the faster DDR speeds will never become standards, but that it'll go straight from PC3200 DDR to DDR2.

If I am not mistaken, DDR-2 is slated to start at 400MHz (PC4800) and 533MHz (PC5600), and to later get faster. 667MHz (PC6400) is slated for a Q3 2004 intro. I believe the big advantage to DDR2 is the increase in bandwidth. DDR-400 has a single channel bandwidth of 3.2GB/sec. DDR2-400 has a single channel bandwidth of 4.8GB/sec. So a dual channel setup (as it is in the powermac) will have 3.2GB/sec more bandwidth if it were to use DDR2 vs DDR at teh same speed. So, just the upgrade to DDR2 will be a benifit, and the fact that "sanctioned" faster chips are on the horizion is a good thing.

[Eug]

Originally posted by kupan787:
If I am not mistaken, DDR-2 is slated to start at 400MHz (PC4800) and 533MHz (PC5600), and to later get faster. 667MHz (PC6400) is slated for a Q3 2004 intro. I believe the big advantage to DDR2 is the increase in bandwidth. DDR-400 has a single channel bandwidth of 3.2GB/sec. DDR2-400 has a single channel bandwidth of 4.8GB/sec. So a dual channel setup (as it is in the powermac) will have 3.2GB/sec more bandwidth if it were to use DDR2 vs DDR at teh same speed. So, just the upgrade to DDR2 will be a benifit, and the fact that "sanctioned" faster chips are on the horizion is a good thing.

Yeah, all I was saying was that the sanctioned faster chips will probably be DDR2 and not DDR.

[applenut1]

Originally posted by King Chung Huang:
LOL!