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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?


To: THE WATSONYOUTH who wrote (82579)12/10/1999 2:13:00 AM
From: Cirruslvr  Respond to of 1572358
 
TWY - RE: "A Coppermine 500E 1.60V @ 776MHz
A Coppermine 650E 1.65V @ 839Mhz"

Wow, .18 Intel processors are as overclockable as .25 Athlons! ;)

"How high do the current Athlon 750s overclock??"

These are just now becoming available so we probably won't know for some more time.

FWIW - Kryotech took the 750 up to 1GHz while the 700 made it up to 900MHz. That's a 33% jump vs. 28.5% one. So if this is any indication, the 750s should OC as well or better than the 700 even when air cooled.



To: THE WATSONYOUTH who wrote (82579)12/10/1999 8:15:00 AM
From: Bill Jackson  Respond to of 1572358
 
THEWATSONKID. Everyone downbins parts to get $ from time to time. If you know it for sure you can save a bundle and run the CPU at the full speed or faster.
Right now the Athlon is intrinsically faster than the coppermine and this explains the severe shortage of high speed coppermines. I would think it highly unlikely for Intel to downbin coppermines to sell for less when they have a line of clients for the faster chip.
The guidelines that Intel uses to sell a chip at whatever speed will actually be conservative as they take into account that it may run for 5 years and they expect it to keep going for all those yers. A downbinned part can be run at it's rated speed for the 5 years. An overclocked part...?? might not do it unless you use heroic cooling measures.
In any even Intel right now does not downbin coppermines, so those parts run fast will roast in time.

Bill



To: THE WATSONYOUTH who wrote (82579)12/10/1999 12:50:00 PM
From: Charles R  Read Replies (1) | Respond to of 1572358
 
TWY,

<A Coppermine 500E 1.60V @ 776MHz
A Coppermine 650E 1.65V @ 839Mhz

These two chips appear to be down binned as well.>

The difference is AMD hass been getting those kind of results with their quarter micron process *VERY EARLY* in Athlon's product life cycle.

<My guess is that Intel is NOW targeting a raw Fmax of around 850Mhz. The fast misses will ship as 800MHz parts in Feb and
everything on target or slower will be for 733MHz or below.>

Your guess in Intel's case may be right but it appears to me that you (and pretty much every other process guy on the thread) has consistantly underestimated Athlon frequencies to date - I sometimes wonder how lond this will continue.

<How high do the current Athlon 750s overclock??

I have not seem any datapoints to answer that question.

Chuck



To: THE WATSONYOUTH who wrote (82579)12/10/1999 1:11:00 PM
From: Ali Chen  Read Replies (1) | Respond to of 1572358
 
THE WATSONYOUTH, re: overclocked P-III

Please note the table content:
"FSB=155 .. 776 ... .... Stability - NO."

Also about other results:
overclockers.com
"They are based on anecdotal evidence compiled from various sources, not a scientific experiment, and conclusions should be tempered accordingly."

Regards,
- Ali



To: THE WATSONYOUTH who wrote (82579)12/11/1999 5:03:00 PM
From: THE WATSONYOUTH  Read Replies (2) | Respond to of 1572358
 
More indication of where the initial Coppermine launch was centered from a MHz point of view. Pro rated to 1.65V, this part appears to run at approx. 750MHz and was down binned to 500MHz.

overclockers.com

Another Coppermine Success 12/10/99: Email
from Arthur: "I have a retail PIII-500E,
Malaysian, SL3R2, FPO 0943B003, MM
825584, Version A01304-001 which is stable
(Prime 95) at 775 MHz with 1.7V in a Soyo
6VBA 133. I am using the Intel HS/fan (much
better than their POS for the Celerons) with
core temp stabilizing at 35C at 775 MHz with
Prime 95.

I am also using a G400 32 meg single head and
128 MB HSDRAM (a Corsair - Micron PC133
stick makes it to 150, but not as stable as I'd like).

This is indeed blowing my mind, PIII-450s or
500s cannot do as well without extreme
cooling."