why do mobile athlon processors look just like desktop ones? whats the diff?

[dxkj]

Pretty much just the title. They look the same, have the same number of transistors etc, whats the diff

 

[ChampionAtTufshop]

mobile run at lower vcore im pretty sure
other than that its probably the exact same cpu...just the "cream of the crop" type thing probably cuz they can do same operations at lower vcore

...im not sure if thats the only diff, but its one of them (if theres more)

 

[VisableAssassin]

hmmm......so in theory you could plug a laptop AXP into your main rig and it would probably work pretty good.

 

[ChampionAtTufshop]

yeah
probably in practice it should/would work as well
p4m;s have been used, why not mobile xp's

...also, im not sure, but i think there may be a "speedstep" sorda thing for mobile cpu's....or maybe im thinking p4m's...lol
but in any case, it wont function under a desktop environment im pretty sure


..since most mobos dont have really low voltages, you'd actually end up overvolting the cpu a bit

for waht its worth: my 1700+tbred works just fine at default speeds down to 1.3v

 

[dxkj]

so Could I theoretically take a 2000+ tbred A and underclock it to 1600+ to account for the low vcore, and toss it in my laptop?

 

[ChampionAtTufshop]

if the board supports it probably

 

[JC]

From AMD:

The latest mobile AMD Athlon 4 processors feature QuantiSpeed? architecture, 200MHz front-side bus, and 384KB full-speed on-chip cache. The latest mobile AMD Athlon 4 processor incorporates a further enhanced version of our SIMD instruction set called 3DNow!? Professional technology. Special features for the mobile AMD Athlon 4 processor include support for AMD PowerNow! technology (for extended battery life), an on-die temperature sensor, and a combination of low power core design and lower operating voltage (1.2-1.4V) that can significantly reduce the processor?s power consumption.

Dunno about pinout.

 

[DAPUNISHER]

Originally posted by: JC
From AMD:

The latest mobile AMD Athlon 4 processors feature QuantiSpeed? architecture, 200MHz front-side bus, and 384KB full-speed on-chip cache. The latest mobile AMD Athlon 4 processor incorporates a further enhanced version of our SIMD instruction set called 3DNow!? Professional technology. Special features for the mobile AMD Athlon 4 processor include support for AMD PowerNow! technology (for extended battery life), an on-die temperature sensor, and a combination of low power core design and lower operating voltage (1.2-1.4V) that can significantly reduce the processor?s power consumption.

Dunno about pinout.

That's for the Athlon4, the mobileXP like my XP2000+ T-bred A in my 900z has all that plus is 266fsb, has SSE, and is of course .13 micron. It is pin compatible with the desktops but the SFF mobiles are available overseas now and will show up here to allow for smaller,thinner, lighter AMD based notebook designs. I think the issues you are likely to face with putting a desktop in your notebook is the substantially reduced power savings the powerNow! and lower Vcore offer and the added heat that would go along with a higher Vcore and inability to reduce clockspeed. I'm fairly certain it will work, just not for very long on battery because it's always running at full speed and the fans will work almost constantly to keep it from getting too hot drawing even more power.

 

[ChampionAtTufshop]

you cant undervolt in laptops?

 

[DAPUNISHER]

PowerNow! dynamically adjust the clock frequency and voltage to enhance power savings according to the PDF I'd have to say based on my experience it's effective and combined with ATI's PowerPlay tech I get very good battery life from it, long enough to watch LOTR no problems and still have some battery left.

 

[ChampionAtTufshop]

yeah i know what powernow is, im just wondering if you can adjust the vcore?

i guess i should have said something like "totally unrelated" lol

 

[DAPUNISHER]

PowerNow! adjust the Vcore automatically but by choosing a power scheme that takes advantage of it you are in essence adjusting it From a certain point of view Luke

 

[ChampionAtTufshop]

what about a cpu that doesnt have powernow capabilities?
^thats the case i was asking about

 

[DAPUNISHER]

Originally posted by: ChampionAtTufshop
what about a cpu that doesnt have powernow capabilities?
^thats the case i was asking about

My bad brudda, it's been awhile since I played with AMDs so I suppose if you can do a voltage mod to the bridges or with a wire trick or some other method to lower the voltage and verify it'll run stabily at full speed that way I suppose the board in the notebook would support it. I've never seriously thought about it or investigated it so if someone does please pass on the data by all means I thinkin' more of seeing how the mobile does in the desktop like Mikki and some of the others have done with the P4-Ms

 

[ChampionAtTufshop]

yah, there was a thread about it a while ago where someone was asking....i dunno waht hapen to it, or if anyone even decided to try it out

the p4m's oced like mad....200fsb +!

 

[dxkj]

Im tempted to take apart my system and try it out... a decrease in battery life is a small price to pay, especially since 90% of the time Im plugged in while using this, its just the ability to take it anywhere with me and plug it in that I enjoy.


It would definitely be interesting if I could upgrade this 850mhz duron to a 2100+ XP