Socket 478 Fastest Processor

Dell / Optiplex gx270...
March 16, 2009 at 11:26:10
Specs: Microsoft Windows XP Home Edition, 2.793 GHz / 1022 MB
What is the fastest processor that will work with the socket 478?
I currently have a 2.8ghz p4 with a 512k l2 cache..

Manufacturer: Dell computer corporation
Model: Optiplex gx270
OS: Microsoft Windows XP Home Edition
CPU/Ram: 2.793 GHz / 1022 MB
Video Card: ATI Radeon 9600/9550/X1050 Series


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#1
March 16, 2009 at 12:11:36
The good ol' Socket 478.

The fastest processor is the 3.4 GHz Pentium 4 Extreme edition.

After that is the 3.4 GHz Pentium 4...

...then the 3.2 GHz Celeron D...

...and the highest-clocked lowest-end processor for the 478 is the 2.8 GHz Celeron.

If you go to eBay, you might be lucky and get a P4 Extreme Edition for cheap.

Hope this helps,
-Trent

"If at first you don't succeed, skydiving may not be for you."

-Our tour guide at Fenway Park in Boston, MA.


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#2
March 16, 2009 at 12:25:01
"...then the 3.2 GHz Celeron D..."

The 3.2 Cel D performs more like a 2.66GHz/533 P4. The P4 3.0/800, 2.8/800, and even 2.6/800 are faster.

There's not much difference in performance between the 3.4 and the 3.4EE. The P4 is a bandwidth-loving CPU; EE's slow L3 cache doesn't do much to increase performance.

If you absolutely must upgrade, then get the 3.4 Northwood. However, a better idea would be to wait until you can build/buy a brand new system.

Socket 939³
Dual-core Opteron 185 @ 3.2GHz
2x 8800GTS in SLI
4GB CL2 PC3200
Blu-ray burner
X-Fi Ti Pro PCI-E
Antec P182
Samsung 24" LCD
Vista 64


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#3
March 16, 2009 at 13:23:45
Not worth upgrading.

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#4
March 16, 2009 at 18:25:30
"The 3.2 Cel D performs more like a 2.66GHz/533 P4. The P4 3.0/800, 2.8/800, and even 2.6/800 are faster."

I figured that. I was just giving the OP the highest-clocked variants of all 4 processors for the Socket 478.

"If you absolutely must upgrade, then get the 3.4 Northwood..."

Wouldn't a similarily-clocked Prescott or Cedar-Mill out-perform the Northwood because of the added SSE3 instructions that the Northwood lacks, or is there something I don't know?

-Trent

"If at first you don't succeed, skydiving may not be for you."

-Our tour guide at Fenway Park in Boston, MA.


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#5
March 16, 2009 at 19:23:35
"Wouldn't a similarily-clocked Prescott or Cedar-Mill out-perform the Northwood because of the added SSE3 instructions that the Northwood lacks, or is there something I don't know?"

In non-SSE3-optimized apps, Prescott is actually slower than Northwood, clock-for-clock. Prescott's 31-stage pipeline just destroys any performance advantage that its larger L2 cache may provide. Northwood only has a 20-stage pipeline. Plus, it runs a lot cooler.

Clock-for-clock, Cedar Mill is faster than both Northwood and Prescott, thanks to its 2MB of L2 cache. However, it's only available in the LGA 775 form factor.

Socket 939³
Dual-core Opteron 185 @ 3.2GHz
2x 8800GTS in SLI
4GB CL2 PC3200
Blu-ray burner
X-Fi Ti Pro PCI-E
Antec P182
Samsung 24" LCD
Vista 64


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#6
March 17, 2009 at 15:59:55
Jackbomb, I didn't know that! Thanks for the info! The long pipeline is what handicapped the Pentium 4, especially when, in some apps, a 1.4 GHz Willamette was pitted against a 1.4 GHz PIII Tualatin.

Mattg, Based on the fact that the Northwood P4 is the best performer for the 478, and the fact that you already have a 2.8 GHz Northwood, and the fastest Northwood is 3.08 GHz, I would agree with jam and say that there isn't really much farther you can go with a processor for your system.

-Trent

"If at first you don't succeed, skydiving may not be for you."

-Our tour guide at Fenway Park in Boston, MA.


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