Another Dothan review from a real site

Zebo

Elite Member
Jul 29, 2001
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http://techreport.com/reviews/2005q1/dfi-855gme-mgf/index.x?pg=1

Still a pretty solid performer... little worse than AMD chip it's OCed speed, 3800 and 4000, but close.. 915 chipset should make things interesting..

the power levels are just incredible.. uses 1/3 power as P4 boxen.. about 3/5 AMD boxen...

The performance that this motherboard enables speaks for itself, I'd say. As a desktop processor, the Pentium M fares very well. The stock Pentium M 755 at 2GHz rivals the lower speed grades of the Athlon 64 and Pentium 4 fairly consistently. Overclocked to 2.4GHz on a 533MHz bus, though, the Pentium M gets downright scary, shadowing the performance of the Athlon 64 4000+ through many of our tests, including games. The Pentium 4, even in its most extreme editions, often can't keep up. Games and similar apps with lots of "branchy" code?and perhaps quite a bit of x87 floating-point math?apparently befuddle the Pentium 4. The Pentium M, on the other hand, slices through them with ease.

This processor's low power requirements and lesser heat production aren't insignificant, either. Not when it performs like this. Quiet computing is here to stay, small form factor systems are still growing in popularity, and home theater PCs are all the rage. Meanwhile, building a high-end enthusiast PC has become something more of a chore than in the past because of the need to attend very carefully to power and cooling requirements. The numbers and types of power connectors in a typical new system are growing, and the new BTX boxes weigh more than an English Mastiff. The 855GME-MGF's single, simple ATX power connector and tiny CPU cooler are rare, welcome relief from such trends.

Unfortunately, that relief doesn't come cheap. The 855GME-MGF is currently selling for about $239 at online merchants, which is an awful lot to ask for a microATX mobo with a modest set of mid-range components on it. Even worse, our Pentium M 755 cost us $435 when we bought it last month, and prices don't seem to have budged since then. By comparison, the Athlon 64 3500+ costs roughly $279 right now, and the Pentium 4 is running about the same. The Pentium M 755 only becomes a good deal if it will overclock to 2.4GHz and challenge the higher end desktop CPUs in performance, but overclocking is never a sure thing.

For the right application, though, a system based on this mobo and a Pentium M processor would certainly be appealing. Let's hope DFI enjoys enough success with this board that they put a new version, with PCI Express and dual-channel memory, on the fast track. I'd like to see a DFI LANParty board for the Pentium M with a full suite of overclocking options. And bring on the Pentium M small form factor boxes. Market segmentation be damned! The mobile desktop revolution has begun.
 

silverpig

Lifer
Jul 29, 2001
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It'd be nice to get one of those, underclock it slightly and run it on a passive cooler. You could have a silent HTPC.
 

Zebo

Elite Member
Jul 29, 2001
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Originally posted by: silverpig
It'd be nice to get one of those, underclock it slightly and run it on a passive cooler. You could have a silent HTPC.

Don't have to underclcok..

You could probably run passive with a decent after market copper HS... Well I know you can because I saw a winchester 1.8 doing it.. and she uses about 15 more watts than Dothan.:)
 

68GTX

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Sep 1, 2001
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Game PC conducted testing in their Latest Review with the Dothan @ 2.53Ghz DDR444.

I'm interested in Frequency & Bandwidwidth scaling such as THIS.

Of Course for best performance you should run at a High Frequency & FSB with aggressive memory timings and the 3:5 Mem Ratio.

With the current crop of mobos this is not possible since they're limited by a lack of voltage options, and questionable AGP/PCI Locks.


The first decent Dothan review will probably happen shortly after DFI releases their updated 855 Mobo with Voltage, Locks & P4 HSF retention bracket.
 

RalfHutter

Diamond Member
Dec 29, 2000
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Originally posted by: silverpig
It'd be nice to get one of those, underclock it slightly and run it on a passive cooler. You could have a silent HTPC.


I've been running a 755 Dothan passively on the AOpen Pentium M board for the past 2 months. It's running at full speed but is undervolted to 1.1V. I'm using a fanless Zalmann 7000AlCu. CPUBurn load temps max out in the low 50°C region at an ambient temp of 21°C.

The DFI board is a bit more problematical because it uses a tiny, non-standard CPU heatsink that resembles a NB cooler.
 

bobsmith1492

Diamond Member
Feb 21, 2004
3,875
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A bit of OCing goes a long way with a P-M :)

My lappy couldn't hardly hit 5 fps on that Step into Liquid 1080 video. After the OC, it runs perfectly, no dropped frames.

Sager 3790
P-M 1.7 @ 2.13, 125 FSB
DDR333 @ 420
ATI 9700 mobility 128 MB
 

Zebo

Elite Member
Jul 29, 2001
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bobsmith1492

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Feb 21, 2004
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How to OC lappytappy:

1st, get a lappy with the 855GM chipset - this is the same as on DFI's desktop P-M board. 2nd, There is a clockgen for the 855GM, and it works on the lappy :)

However, the onboard sound kicks out at a much lower OC. I just disable it and use a cheapo USB sound dongle. It sounds better anyway.

That looks like a nice lappy, especially for the price. I don't know what chipset it uses though, or if you could OC it.

Actually, I checked the product link and it uses the "855 chipset family." It might OC, who knows?
 

Duvie

Elite Member
Feb 5, 2001
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Could you imagine how awesome a dual core based on Dothan would be???

To bad Intel seems to have gone stupid for the last 1-1/2 years and for at least another year in the future.....dual core prescotts...another bad move by Intel....

call it the Oregon 3 step....1 step forward 2 steps back..ppl in Oregon will understand this...
 

RobsTV

Platinum Member
Feb 11, 2000
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Small gripe about tests done by techreport.
How do gaming benchmarks done using 640x480x32 relate to anything real world?
Does anyone run at even 800x600 anymore?
Changing the resolution to what most use, (for example 1440x900x32 in Far Cry here or at least the more common 1024x768x32), will greatly change the results of the tests.

Benchmarks done at many other sites using realistic resolutions show the P-M does even better!
 

TStep

Platinum Member
Feb 16, 2003
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low res is used to minimize the effect of the video card in the cpu/mobo evaluation. IE: video card will not be the limiting factor.
 

RobsTV

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Feb 11, 2000
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Originally posted by: TStep
low res is used to minimize the effect of the video card in the cpu/mobo evaluation. IE: video card will not be the limiting factor.


But if the same video card is used in all tests?????

Isn't the point of the test to actually see which CPU does the real end result job better, or testing to see "which one should you get?""
 

68GTX

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Sep 1, 2001
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Originally posted by: RobsTV

Small gripe about tests done by techreport.
How do gaming benchmarks done using 640x480x32 relate to anything real world?


They Don't. That's why I'm surprised that review sites still even bother posting such results.

Timedemo results are bad enough without the AI/Physics overhead, and running them at low resolution is even less representative of real word game play.


 

Zebo

Elite Member
Jul 29, 2001
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:::sigh:::

this is'nt a video card review it's a processor review.

The idea is to make it as CPU dependant as possible and show the differences.

You start jacking res or features a) the differences get smaller between competeing processors b) video card is determining frames more than CPU.


CPU works same hardness reguardless, 6x8 shows it best..most site use that or 10x7 when doing processor reviews.
 

68GTX

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Sep 1, 2001
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Yes, it's a Processor Review or "How Fast will your CPU/Graphics card render a low resolution Timedemo Review".

There are very few reviews which show the benefits of CPU/Graphics Scaling with a variety of CPUs and graphics cards at multiple resolutions and quality settings, which is what many people want to see.
 

TStep

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Feb 16, 2003
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Read this article. Study the graphs. You will understand that to analyse a particular component in a system, you must ensure no other components are affecting the results. To remove the video card out of the equation, you run benchmarks using the lowest video resolution.

If it were a video card review, a very fast processor held to a constant speed would be used, with the resolution, AA, AF, etc being the variables.
 

68GTX

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Sep 1, 2001
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I Posted that article HERE on 06/01/2004.

I was also looking for other CPU/GPU scaling articles, but they're hard to find.

Most end up leaving out quality settings with AA/AF, which is why I linked the the firing Squad review.

 

TStep

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Feb 16, 2003
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CPU/GPU scaling articles are no doubt the most interesting and informative, but the testing matrix is just too big.

5 cpus x 5 video cards x 4 diff res each x numerous AA/AF combos (0xAA/0xAF..... 8xAA/16xAF) = hundreds of tests.
 

bobsmith1492

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Feb 21, 2004
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Originally posted by: TStep
CPU/GPU scaling articles are no doubt the most interesting and informative, but the testing matrix is just too big.

5 cpus x 5 video cards x 4 diff res each x numerous AA/AF combos (0xAA/0xAF..... 8xAA/16xAF) = hundreds of tests.

It sure would make a neat looking 3d graph though! :p
 

68GTX

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Sep 1, 2001
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Originally posted by: bobsmith1492
Originally posted by: TStep
CPU/GPU scaling articles are no doubt the most interesting and informative, but the testing matrix is just too big.

5 cpus x 5 video cards x 4 diff res each x numerous AA/AF combos (0xAA/0xAF..... 8xAA/16xAF) = hundreds of tests.

It sure would make a neat looking 3d graph though! :p

Yes, The graphs would be a thing of beauty.

The scale of such a review, would be large, so most sites would have to nix some of the intermediate frequencies and quality settings to save time.

I'm sure that someone will do a review like this, even if it's on a smaller scale.

I'd like to see a review like this with the upcoming 915 based Dothan mobos so I can compare results.