EXTREME EDITION 1066MHZ FRONT SIDE BUS PROCESSOR & 925XE CHIPSET
Date: October 31st, 2004
Article by: Nathan Glentworth
(Owner, Head Editor & Hardware Reviewer)
Product was donated by: Intel <--SHOP FOR A INTEL MOTHERBOARD HERE
INTEL CORPORATE PROFILE
For more than three decades, Intel Corporation has developed
technology enabling the computer and Internet revolution that has changed
the world. Founded in 1968 to build semiconductor memory products, Intel
introduced the world's first microprocessor in 1971. Today, Intel supplies
the computing and communications industries with chips, boards, systems,
and software building blocks that are the "ingredients" of computers,
servers and networking and communications products. These products are
used by industry members to create advanced computing and communications
systems. Intel's mission is to be the preeminent building block supplier
to the Internet economy.
Intel's newest 3.46Ghz Extreme Edition Pentium 4 and new
925XE chipset launch can be summed up easily as the simple upscaling
of a portion of the Pentium 4 line from its' long standing front side
bus standard speed of 800Mhz to 1066Mhz. Based on current knowledge
which may change shortly, the 1066Mhz front side bus flavor is only
being released in the Extreme Edition line of P4s and only time will
tell whether it will spread to the newer standard LGA775 processors.
To be honest, I hope it does.
The 3.46Ghz processor I was using for the testing was
an Intel Engineering sample with an unlocked multiplier that could be
set to 12 or 13 as you see in the above CPU-Z shot. This is a good sign
that a 3.2Ghz version of this processor should be following shortly
with a locked 12x multiplier.
With that being said, the new 3.46Ghz 1066Mhz Extreme
Edition is practically the same as the 3.4Ghz 800Mhz Extreme Edition
other than the newer model have a 266Mhz quad pumped front side bus
with a 13x multiplier and the older 800Mhz version having its' respective
200Mhz quad pumped bus being multiplied to a tune of 17x . What separates
both of these Gallatin core based processors from their more mainstream
directed Prescott alternative is their respective 512kb Level 2 and
very large 2MB L3 caches. With more memory onboard, the CPU is less
inclined to rely on the slower DDR2 system memory for faster executions.
Seeing the new 3.46Ghz Gallatin still requires the same
1.525-1.6 volt (1.575volts usually) vcore, I was expecting to be monitoring
the same relative core temperatures while benchmarking and stress testing.
With the emphasis put on the "expecting", stress testing using
Prime95's maximum heat torture test had Intel's Active Monitor software
throwing up warning screens as it detected temperatures reaching and
passing the 60c threshold and topping out at 72c (162f) using an open
air setup with no case. At idle, the temperature hovered around a nominal
35c which was only six degrees Celsius over room temperature. Initializing
the stressing program had the temperature practically bolt up to 62c
in 10 seconds where from there is slowly crept up 72c within two minutes.
But what does this mean? Do we have another scorcher or
do we have a processor heatsink and fan that is not up to the task of
cooling the new Gallatin? Well, if you were to say both, you would be
correct. With a full 110.7watts of total heat displacement coming forth
at maximum stress levels, an aftermarket copper heatsink or even a Socket
T watercooling kit should be on your short list if you plan on really
pushing this processor to its' limits.
Turning our focus to the new 925XE chipset, the photo
above speaks for itself. As you can see and infer, the only difference
between the 925X and the 925XE is the 1066Mhz FSB and tighter 3-3-3-8
memory timing support with the newer version. And seeing that the two
motherboards are practically identical, I found it a waste of time to
rehash when has already been outlined in our INTEL
D925XCV LGA775 PENTIUM 4 925X ALDERWOOD MOTHERBOARD REVIEW we
Unfortunately, at the time of benchmarking I did not have
a sample of 3-3-3-8 capable memory for testing. But, on the other hand
using the same Mushkin 4-4-4-12 memory will highlight the actual gains
from the faster front side bus Extreme Edition instead of a performance
increase through a mixture of the tighter memory timings and the faster
CPU combined. Once a sample of 3-3-3-8 memory comes available, I will
update the review with the new benchmarks combining the two faster components.
Until then, here are the 3.46Ghz Extreme Edition benchmarks.