Upgrading, Northwood or Prescott ?

Upgrading, Northwood or Prescott ?

Post by Paul Wadla » Wed, 01 Dec 2004 06:18:12



Hi,
Sorry if this has been asked lots of times before but I am considering
upgrading my 2.8 Ghz P4 to a 3.2 Ghz P4 but do not know whether to go for a
Northwood or Prescott chip. What exactly is the difference ? I have checked
compatibility with my MSI 875P Neo Motherboard and both chips will fit. Any
advice would be appreciated, will I actually notice any performance increase
going from a 2.8 to 3.2 ? I do play a lot of games.
Thanks
Paul
 
 
 

Upgrading, Northwood or Prescott ?

Post by Ronal » Wed, 01 Dec 2004 06:33:41


It would help to know what makes you so desperate to upgrade.
Would a faster disc, more memory, or a better videocard help you any better
?

 
 
 

Upgrading, Northwood or Prescott ?

Post by Dave » Wed, 01 Dec 2004 09:26:43

Prescott CPU's run a LOT hotter than Northwoods and are NO faster in design.
The 3.2 GHz CPU will run 12% faster than the 2.8 GHz. You will not see a
noticeable difference.

--
DaveW
 
 
 

Upgrading, Northwood or Prescott ?

Post by Alan Walpo » Wed, 01 Dec 2004 11:06:25

>>>>> "DaveW" == DaveW < XXXX@XXXXX.COM > writes:

DaveW> Prescott CPU's run a LOT hotter than Northwoods and are NO
DaveW> faster in design. The 3.2 GHz CPU will run 12% faster than the
DaveW> 2.8 GHz. You will not see a noticeable difference.

I would concur with that. No need to upgrade at all.

Later
 
 
 

Upgrading, Northwood or Prescott ?

Post by JK » Wed, 01 Dec 2004 15:55:37


Why? That wouldn't make much sense as you would probably not even
notice the difference. Upgrade to a new motherboard and an Athlon 64
instead. 2005 is the year of 64 bit computing for the common man.


In Doom 3 for example, a $140 Athlon 64 3000+ beats an $840 Pentium 4
3.2 ghz EE.

http://www.yqcomputer.com/

That is just for the standard 32 bit version of Doom 3 using 32 bit Windows XP.
Imagine how great the 64 bit version of Doom 3 will be.
 
 
 

Upgrading, Northwood or Prescott ?

Post by JK » Wed, 01 Dec 2004 15:56:55

On the subject of heat and power consumption.

http://www.yqcomputer.com/
 
 
 

Upgrading, Northwood or Prescott ?

Post by JK » Wed, 01 Dec 2004 15:57:44


An upgrade to an Athlon 64 would be nice.
 
 
 

Upgrading, Northwood or Prescott ?

Post by JK » Wed, 01 Dec 2004 15:59:35

Other *** benchmarks.

http://www.yqcomputer.com/
 
 
 

Upgrading, Northwood or Prescott ?

Post by Ken » Wed, 01 Dec 2004 17:59:20


Very true. 12% is not noticeable.
 
 
 

Upgrading, Northwood or Prescott ?

Post by Alex Johns » Wed, 01 Dec 2004 22:23:11


There is no reason to upgrade a 2.8GHz P4 to a 3.2GHz model. The change
in performance will be unnoticable (someone quoted 12.5% but that's only
the increase in frequency...the increase in performance will be on the
order of 2%-4% total). You are much better off spending $200 on a video
card than $200 on a CPU.

Alex
--
My words are my own. They represent no other; they belong to no other.
Don't read anything into them or you may be required to compensate me
for violation of copyright. (I do not speak for my employer.)
 
 
 

Upgrading, Northwood or Prescott ?

Post by Paul Wadla » Thu, 02 Dec 2004 07:07:52


OK Guys, thanks for all the advice. You've managed to talk me out of it,
I'll spend my money on something else. After all your info. I'll give the
CPU upgrade a miss.
Thanks.
 
 
 

Upgrading, Northwood or Prescott ?

Post by Dorothy Br » Thu, 02 Dec 2004 07:24:34

Upgrading is about targetting the bottleneck in your usage.
o Usage involves a mix of Compute + I/O + Visual
o Usage is also subject to overall time

So if the time for a given task is short, then the bottleneck
whilst technically apparent is not perceptibly noticeable.

For example, the following are both Compute bottlenecks:
o MPEG2 compression = 1 hr
---- 25% faster CPU = 15mins saved = worthwhile
o Filter usage in Photoshop = 8 secs
---- 25% faster CPU = 2secs saved = probably not worthwhile

In a commercial environment things are different:
o If N people use the filter 500x a day = saving is 17mins/person/day
o However, compute gains may not translate into productivity gain

That applies as much to consumer usage re economic spend.

For office applications, actual disk I/O is a major bottleneck:
o P2-366 laptop to P4-Cel-2200 laptop sounds a good upgrade
---- CPU is 10x faster - HD is just 3-10% faster
o One reason why laptop as desktop replacement can fail
---- do a lot of disk I/O and the latency is quite noticeable

CPU upgrades are hitting the law of diminishing returns to general
office use - Celeron 1Ghz will do most well, P4-3.0 is mostly sat idle.

So you have to define:
1) What your bottleneck is
2) What upgrade will target that with a worthwhile gain

Benchmarks are one thing - very often reality is quite different:
o Technically DDR-400 is radically faster than DDR-266
o For most users the difference is barely detectable

The PC industry is hitting a bit of a vicious circle:
o To get big performance gains often means changing CPU/Chipset/RAM
o To change CPU/Chipset/RAM requires a large benefit to justify it

Some of the vicious circle is beneficial:
o It forces h/w upgrade due to obsolescence
---- PCI to PCI-X, Skt-A to Skt-754 to Skt-939, USB1.1 to USB 2.0
o It forces s/w upgrade due to compatibility
---- this is worst for laptop users, since it is *system level* O/S support
---- whilst Office97 & PS4.1 worked fine on a P2-366 NT4, it doesn't on a P4-Cel-2200
---- not because of the faster CPU, components - but due to support under XP-Pro

So you have to play poker with the system sellers.
Their aim is to get the maximum number of upgrades from you per unit time.

For anything but the most serious MPEG compute use, I'd wait or u/g elsewhere.
--
Dorothy Bradbury
 
 
 

Upgrading, Northwood or Prescott ?

Post by Bill David » Thu, 02 Dec 2004 12:16:04


I agree with your final summary, but that 12.5% is anyone's guess, since
cache size and the ability (or not) to make use of HT could make that
effectively higher or lower. However, keep in made the phrase
"measurable but not noticable."


--
bill davidsen ( XXXX@XXXXX.COM )
SBC/Prodigy Yorktown Heights NY data center
Project Leader, USENET news
http://www.yqcomputer.com/