- Joined
- Mar 17, 2002
UNDER RECONSTRUCTION!!!
I am currently slowly adding addational information to turn this thread into the future mobile chip guide... during this process I cannot gaurentee accuracy or neat organization. If you think you have something to add please post it and I will give credit where credit is due...
I really really really need some information on the mobile amd xp chips: bartons, pally's, tbreds: stuff like how many pipelines and amounts of cache, power saving features and other stuff PLEASE!!!
who knew that a few advanced electonics clases would consume so much time... It may not be till this weekend (april 16th) that I get to work on it again...
THE MOBILE Pentium-4 INTEL SPECS
northwood "Mobile" pentium 4
|-sSpec#-|-CPU Speed-|_Bus Speed-|-Mfg.Tech-|-Stepping-|-Cache-|-PackageType-|
|SL7X5.....|3.33 GHz.....| 533 MHz.....|90 nm | E0 | 1 MB |478 pin PPGA
|SL7DU |3.20 GHz | 533 MHz |90 nm | D0 | 1 MB |478 pin PPGA
SL77R |3.20 GHz |533 MHz |0.13 mi | D1 | 512 KB |478 pin PPGA
|SL726 |3.06 GHz |533 MHz |0.13 mi |D1 |512 KB |478 pin PPGA
|SL7DT |3.06 GHz |533 MHz |90 nm |D0 |1 MB |478 pin PPGA
|SL77P |3.06 GHz |533 MHz |0.13 mi |D1 |512 KB |478 pin PPGA
|SL77N |2.80 GHz |533 MHz |0.13 mi |D1 512 KB 478 pin PPGA
SL725 2.80 GHz 533 MHz 0.13 micron D1 512 KB 478 pin PPGA
SL7DS 2.80 GHz 533 MHz 90 nm D0 1 MB 478 pin PPGA
SL77M 2.66 GHz 533 MHz 0.13 micron D1 512 KB 478 pin PPGA
SL724 2.66 GHz 533 MHz 0.13 micron D1 512 KB 478 pin PPGA
SL723 2.40 GHz 533 MHz 0.13 micron D1 512 KB 478 pin PPGA
There is no plain desktop pentium 4 for laptops... except for the extreme edition that alienware and dell and others used for their extreme systems...
-LONG PIPELINE 31 stages for a prescott core (SHORTER IS BETTER)
-extreme speeds 3.46ghz max (according to the intel specs)
-very little to NO headroom for overclocking with stock cooler above 3.8ghz
-Very IN-EFFICENT PROCESSOR (the processor can't get data supplied to it fast enougf because of the 30+ stage pipeline...)
-Has hyperthreading to counteract the inefficency (HT is not a performance enhancer but rather a means to make the processor perform like is should have in the first place)...
-20k L1 cache and 256-1024k L2 cache (more is better)
-55-110 WATTS POWER CONSUMPTION (DEPENDING ON WHICH P4 IT IS) (lower is better)
-Based off of NETBURST ARCTHECTURE
(the source of all the confusion...) The pentium-4 m INTEL SPEC SHEET
The pentium-4 m is a DESKTOP P4 with Speedstep technology and enhanced technology for better wireless capabilities, this processor does not have hyperthreading... if you take away those small extera features then it becomes a DESKTOP p4, The pentium-4 m is actually the willimatte version of the mobile pentium-4... It had 2x the L2 cache of it's willimatte desktop cousin.
you see intel started with the pentium-4 m and then when the northwoods came out they changed the name to the MOBILE pentium-4... people still call it the pentium 4 m but that chip isn't produced anymore...
Willimatte Pentium "4-M" chip variations
sSpec# CPU Speed Bus Speed Mfg. Tech Stepping Cache Size Package Type
SL6WY 2.50 GHz 400 MHz 0.13 micron D1 512 KB 478 pin PPGA FC-PGA2
SL6P2 2.50 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL6VC 2.40 GHz 400 MHz 0.13 micron D1 512 KB 478 pin PPGA FC-PGA2
SL6K5 2.40 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL6LS 2.40 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL6J5 2.20 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL6LR 2.20 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL6VB 2.20 GHz 400 MHz 0.13 micron D1 512 KB 478 pin PPGA FC-PGA2
SL6CL 2 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6DF 2 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6FK 2 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL6V9 2 GHz 400 MHz 0.13 micron D1 512 KB 478 pin PPGA FC-PGA2
SL6CK 1.90 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6DE 1.90 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6V8 1.90 GHz 400 MHz 0.13 micron D1 512 KB 478 pin PPGA FC-PGA2
SL6FJ 1.90 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL6FH 1.80 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL6CJ 1.80 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL65Q 1.80 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL69D 1.80 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6V7 1.80 GHz 400 MHz 0.13 micron D1 512 KB 478 pin PPGA FC-PGA2
SL6FG 1.70 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL5ZZ 1.70 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL5Z7 1.70 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6CH 1.70 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6V6 1.70 GHz 400 MHz 0.13 micron D1 512 KB 478 pin PPGA FC-PGA2
SL5ZY 1.60 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6CG 1.60 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6FF 1.60 GHz 400 MHz 0.13 micron C1 512 KB 603 pin PPGA FC-PGA2
SL5YU 1.60 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6CF 1.50 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL5ZX 1.50 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL5YT 1.50 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL5ZH 1.40 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL5ZW 1.40 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6NA 1.30 GHz 400 MHz 0.13 micron B1 1 MB 479 pin H-PBGA
SL6P4 1.10 GHz 400 MHz 0.13 micron B1 1 MB 479 pin H-PBGA FC-BGA2
THE Pentium-m <--- there is no 4 in this name!
-SHORT PIPELINE between 12-14 stages (shorter is better)
-runs at low speed 2.13ghz MAX
-LOTS OF headroom for overclocking (2ghz+ with no fan for a 1.6ghz chip) as reported by Madshrimps
-Very efficent processor ( no bottlenecks in the pipeline)
-No hyperthreading because it's allready incredibly efficent -64k L1 cache and 1024-2048k L2 cache) (more is better)
-5-27 WATTS POWER CONSUMPTION (DEPENDING ON WHICH TYPE OF PENTIUM-M IT IS
-Based off of some of the old p3 artecheture with p4 bus speed enhancements and enhanced ITANIUM branch prediction, power saving enhancements, and even some advanced Itanium instruction handling plus enhanced speedstep technology which can change processor speeds on
the fly!
So you can see that The pentium-m and mobile pentium-4 are VERY DIFFERENT INDEED... In a nutshell what the above statistics say is that the pentium-m is a More-efficent, cooler-running chip than the p4 could ever be.
The CELERON-M
The celeron-M is EXACTALLY LIKE THE PENTIUM-M except for half the cache and the old cheap pentium 3 speedstep was used in place of the enhanced speedstep with deeper sleepstates that the pentium-m gets. The two differences are demonstrated below...
Photo Origionates from:TOMS HARDWARE GUIDE
The MOBILE CELERON and the MOBILE CELERON-D INTEL SPEC SHEET
Anything and Everything you ever wanted to know about the mobile celeron can be forund HERE!!!
There are many variations of the mobile celeron (not to be confused with the celeron-m)
There are mobile celerons that are out that are still based on the old northy p4 and with only 128 megs L2 cache and run up to 2.8ghz. Celeron chips totally suck and should not be bought unless you want an uber cheap system
then there are the prescott chips which the line has been officially terminated... bolth the chart and quote are taken straight from Anand Tech
"
Budget Processors
Processor...............Speed...Cache....FSB.......Launch Date
Mobile Celeron D 350 3.20 GHz 256 KB 533 MHz Cancelled
Mobile Celeron D 345 3.06 GHz 256 KB 533 MHz Already available
Mobile Celeron D 340 2.93 GHz 256 KB 533 MHz Already available
Mobile Celeron D 335 2.80 GHz 256 KB 533 MHz Already available
Mobile Celeron D 330 2.66 GHz 256 KB 533 MHz Already available
Mobile Celeron D 325 2.53 GHz 256 KB 533 MHz Already available
"
"Taking a look at the "transportable" processors, the only changes are the cancellation of the two fastest - and hottest - processors based off the NetBurst architecture. NetBurst was never really designed for the mobile sector, and most of the laptops that use these chips target the "desktop replacement" (DTR) segment rather than true mobility. The cancellations reflect Intel's acknowledgement of this fact, as well as their confidence in the Pentium M and Celeron M parts. They could have easily shipped these parts, but demand is simply not great enough to warrant it. Not only has Intel cancelled the 558 and 350 parts, but the entire NetBurst mobile line is scheduled to cease production in Q2'05. This is no real loss, as it means future laptops will simply shift to using more appropriate parts."
mobile celerons have the same long pipelines as their p4 counterparts and the 90nm line of celerons runs pretty hot and at 1/4 their p4 counterparts cache, you can expect that these chips are going to be a little lacking power wise...
THE AMD TURION...
I for one actually like the TURION Because it will keep intel on it's toes and Force intel to improve upon the pentium-m even more.
here is a nice little preview about what this processor is and where it comes from...
http://www.xbitlabs.com/news/mobile/display/20040408042811.html
Basically the Turion processor is an AMD64 that has had it's power consumption scaled down to 35 watts and given other power enhancing features... this is still 8 watts more than the highest rated pentium-m but the battery performance is still alot better than an 80 watt p4... It is safe to assume that this chip still has 12 pipelines like it's desktop counterpart...
I have only seen 2 benchmarks but they have shown that a pentium-m and an athalon64 at the same clock speed are about equal in performance... But it still consumes a bit more power but at the same time costs a little less... This is a very nice alternative to the pentium-m for the average AMD FAN and I would consider the Pentium-m and the AMD Turion processors about equal...
AMD TURION NEWS AND INFORMATION THREAD!!! over at laptop logic forums...
MORE INFORMATION WILL BE AVAILABLE ON THE TURION AFTER APRIL 18th WHICH IS THE OFFICIAL BEGINING OF AMD'S PROMOTIONAL CAMPAIGN.
2. Everything you ever wanted to know about the pentium-m
Just awhile ago I created a thread called POST YOUR BATTERY LIFE and the results have come in... People using laptops based on the p4 are getting battery life between 45 mins to 2.5 hours while people on laptops based on the Pentium-m are getting battery life time between 3 hours and 5.5 hours...
So one advantage of a pentium-m over a p4 you could say would be more than DOUBLE BATTERY LIFE
One of the things on most peoples minds when buying a laptop is the speed of the processor... most people want a nice fast processor that can handle anything they can throw at it. so when they see the pentium-m processor at only 1.6ghz they immediatelly think that the processor is completelly wimpy when this is just not the case... The pentium-m processor is so efficent that it is more powerful than p4 processors up to 1.5 times
its speed... for example... The 1.6ghz Pentium-m has the performance of a p4 2.4ghz pentium-4 processor. This is true for all the pentium-m processors.
If you follow this link... you will be taken to a few benchmark results which will show you the power of the Pentium-m. and if you think this benchmark is biased... think again... 20+ hardware review sites have all confirmed that a 1.6ghz pentium-m is equal or more powerful than a pentium4 at 2.4ghz.
http://www.anandtech.com/mobile/showdoc.aspx?i=1800&p=14
So another advantage of a pentium-m over a p4 is that "CLOCK FOR CLOCK PERFORMANCE" the pentium-m is 1.5-1.6 TIMES more powerful than a P4 if a p4 and a pm where running at the same speed.
ONE of the major downsides of the p4 in a laptop is power consumption... To fix this problem, Intel decided that while p4's are running on batteries that the clock speed would be halved... this in turn allmost halves the performance of the laptop but increases the battery life a bit... This feature can be disabled but then the p4 will have even less battery life... the pentium-m on the otherhand can run at full speed whenever needed without taking such a large hit to the battery life.
And what I would say the greatest advantage of the pentium-m is how cool it runs. the pentium m consumes alot less power than the p4 and thus runs very cool... The pentium-m is capapable of running full speed and full load on a passive desktop heatsinc (no fan) without overheating... this is a very nice feature that adds addational battery life because the fan on the processor does not need to run all the time. and also because the processor dosen't generate as much heat, you wont have to worry about being capapable of having children in the future like you would with other processors when using your laptop on your lap. (excessive heat kills... well you can figure it out)
Here is a link to some explained features of the pentium-m processor
http://www.gen-x-pc.com/centrino2.htm
DIFFERENT STEPINGS OF PENTIUM-M'S
ok so right now there are 3 different revisions of the pentium-m out right now...
Bianas 1 meg L2 cache 400mhz FSB, Max frequency (1.8ghz) DDR 333 RAM, 24 watts
Dothan 2 meg L2 cache 400mhz FSB, Max frequency (2.1ghz) DDR 333 RAM, 21 watts
Sonoma 2 meg L2 cache 533mhz FSB, Max frequency (2.13ghz) DDR2 533 DUAL CHANNEL RAM, 27 watts
In the lowest sleep state (before standby) they can easily consume less than 5 watts
There is even a CELERON version of the pentium-m... NOT TO BE CONFUSED WITH THE MOBILE CELERON D...This celeron-m has 1meg-512k L2 cache (depending on which one you get) this celeron-m actually perfoms much better than expected...
THE PENTIUM-M SPEC SHEET WITH THE OLD DOTHAN AND NEW SONOMA CORES (INCLUDING POWER CONSUMPTION RATINGS) I just love the guys at toms hardware sometimes because they can make a really nice table Instead of explaining each I think I will let this spec sheet do the talking.
http://www17.tomshardware.com/mobile/20050119/sonoma_alviso-08.html
MEMMORY BANDWIDTH OF OLD AND NEW Pentium-m chips and also a comparason to P4 chip...
http://www17.tomshardware.com/mobile/20050119/sonoma_alviso-03.html
PRICE OF Pentium-m CHIPS (pricing table)
http://www17.tomshardware.com/mobile/20050119/sonoma_alviso-09.html
Pleas note that as of JULY 24th of 2005 the price of most of the pentium-m chips will be cut by 33%...
here is another comparason table provided by INTEL
http://support.intel.com/support/processors/mobile/pm/sb/CS-007967.htm
The next Generation of centrino is expected toward the end of this year... this new generation is codenamed napa and is to be a dual core chip.
well there you have it... The pentium-m and the other mobile chips explained...
to be added in future: More Mobile AMD CHIPS...
I am currently slowly adding addational information to turn this thread into the future mobile chip guide... during this process I cannot gaurentee accuracy or neat organization. If you think you have something to add please post it and I will give credit where credit is due...
I really really really need some information on the mobile amd xp chips: bartons, pally's, tbreds: stuff like how many pipelines and amounts of cache, power saving features and other stuff PLEASE!!!
who knew that a few advanced electonics clases would consume so much time... It may not be till this weekend (april 16th) that I get to work on it again...
THE MOBILE Pentium-4 INTEL SPECS
northwood "Mobile" pentium 4
|-sSpec#-|-CPU Speed-|_Bus Speed-|-Mfg.Tech-|-Stepping-|-Cache-|-PackageType-|
|SL7X5.....|3.33 GHz.....| 533 MHz.....|90 nm | E0 | 1 MB |478 pin PPGA
|SL7DU |3.20 GHz | 533 MHz |90 nm | D0 | 1 MB |478 pin PPGA
SL77R |3.20 GHz |533 MHz |0.13 mi | D1 | 512 KB |478 pin PPGA
|SL726 |3.06 GHz |533 MHz |0.13 mi |D1 |512 KB |478 pin PPGA
|SL7DT |3.06 GHz |533 MHz |90 nm |D0 |1 MB |478 pin PPGA
|SL77P |3.06 GHz |533 MHz |0.13 mi |D1 |512 KB |478 pin PPGA
|SL77N |2.80 GHz |533 MHz |0.13 mi |D1 512 KB 478 pin PPGA
SL725 2.80 GHz 533 MHz 0.13 micron D1 512 KB 478 pin PPGA
SL7DS 2.80 GHz 533 MHz 90 nm D0 1 MB 478 pin PPGA
SL77M 2.66 GHz 533 MHz 0.13 micron D1 512 KB 478 pin PPGA
SL724 2.66 GHz 533 MHz 0.13 micron D1 512 KB 478 pin PPGA
SL723 2.40 GHz 533 MHz 0.13 micron D1 512 KB 478 pin PPGA
There is no plain desktop pentium 4 for laptops... except for the extreme edition that alienware and dell and others used for their extreme systems...
-LONG PIPELINE 31 stages for a prescott core (SHORTER IS BETTER)
-extreme speeds 3.46ghz max (according to the intel specs)
-very little to NO headroom for overclocking with stock cooler above 3.8ghz
-Very IN-EFFICENT PROCESSOR (the processor can't get data supplied to it fast enougf because of the 30+ stage pipeline...)
-Has hyperthreading to counteract the inefficency (HT is not a performance enhancer but rather a means to make the processor perform like is should have in the first place)...
-20k L1 cache and 256-1024k L2 cache (more is better)
-55-110 WATTS POWER CONSUMPTION (DEPENDING ON WHICH P4 IT IS) (lower is better)
-Based off of NETBURST ARCTHECTURE
(the source of all the confusion...) The pentium-4 m INTEL SPEC SHEET
The pentium-4 m is a DESKTOP P4 with Speedstep technology and enhanced technology for better wireless capabilities, this processor does not have hyperthreading... if you take away those small extera features then it becomes a DESKTOP p4, The pentium-4 m is actually the willimatte version of the mobile pentium-4... It had 2x the L2 cache of it's willimatte desktop cousin.
you see intel started with the pentium-4 m and then when the northwoods came out they changed the name to the MOBILE pentium-4... people still call it the pentium 4 m but that chip isn't produced anymore...
Willimatte Pentium "4-M" chip variations
sSpec# CPU Speed Bus Speed Mfg. Tech Stepping Cache Size Package Type
SL6WY 2.50 GHz 400 MHz 0.13 micron D1 512 KB 478 pin PPGA FC-PGA2
SL6P2 2.50 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL6VC 2.40 GHz 400 MHz 0.13 micron D1 512 KB 478 pin PPGA FC-PGA2
SL6K5 2.40 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL6LS 2.40 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL6J5 2.20 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL6LR 2.20 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL6VB 2.20 GHz 400 MHz 0.13 micron D1 512 KB 478 pin PPGA FC-PGA2
SL6CL 2 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6DF 2 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6FK 2 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL6V9 2 GHz 400 MHz 0.13 micron D1 512 KB 478 pin PPGA FC-PGA2
SL6CK 1.90 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6DE 1.90 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6V8 1.90 GHz 400 MHz 0.13 micron D1 512 KB 478 pin PPGA FC-PGA2
SL6FJ 1.90 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL6FH 1.80 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL6CJ 1.80 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL65Q 1.80 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL69D 1.80 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6V7 1.80 GHz 400 MHz 0.13 micron D1 512 KB 478 pin PPGA FC-PGA2
SL6FG 1.70 GHz 400 MHz 0.13 micron C1 512 KB 478 pin PPGA FC-PGA2
SL5ZZ 1.70 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL5Z7 1.70 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6CH 1.70 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6V6 1.70 GHz 400 MHz 0.13 micron D1 512 KB 478 pin PPGA FC-PGA2
SL5ZY 1.60 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6CG 1.60 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6FF 1.60 GHz 400 MHz 0.13 micron C1 512 KB 603 pin PPGA FC-PGA2
SL5YU 1.60 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6CF 1.50 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL5ZX 1.50 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL5YT 1.50 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL5ZH 1.40 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL5ZW 1.40 GHz 400 MHz 0.13 micron B0 512 KB 478 pin PPGA FC-PGA2
SL6NA 1.30 GHz 400 MHz 0.13 micron B1 1 MB 479 pin H-PBGA
SL6P4 1.10 GHz 400 MHz 0.13 micron B1 1 MB 479 pin H-PBGA FC-BGA2
THE Pentium-m <--- there is no 4 in this name!
-SHORT PIPELINE between 12-14 stages (shorter is better)
-runs at low speed 2.13ghz MAX
-LOTS OF headroom for overclocking (2ghz+ with no fan for a 1.6ghz chip) as reported by Madshrimps
-Very efficent processor ( no bottlenecks in the pipeline)
-No hyperthreading because it's allready incredibly efficent -64k L1 cache and 1024-2048k L2 cache) (more is better)
-5-27 WATTS POWER CONSUMPTION (DEPENDING ON WHICH TYPE OF PENTIUM-M IT IS
-Based off of some of the old p3 artecheture with p4 bus speed enhancements and enhanced ITANIUM branch prediction, power saving enhancements, and even some advanced Itanium instruction handling plus enhanced speedstep technology which can change processor speeds on
the fly!
So you can see that The pentium-m and mobile pentium-4 are VERY DIFFERENT INDEED... In a nutshell what the above statistics say is that the pentium-m is a More-efficent, cooler-running chip than the p4 could ever be.
The CELERON-M
The celeron-M is EXACTALLY LIKE THE PENTIUM-M except for half the cache and the old cheap pentium 3 speedstep was used in place of the enhanced speedstep with deeper sleepstates that the pentium-m gets. The two differences are demonstrated below...
Photo Origionates from:TOMS HARDWARE GUIDE
The MOBILE CELERON and the MOBILE CELERON-D INTEL SPEC SHEET
Anything and Everything you ever wanted to know about the mobile celeron can be forund HERE!!!
There are many variations of the mobile celeron (not to be confused with the celeron-m)
There are mobile celerons that are out that are still based on the old northy p4 and with only 128 megs L2 cache and run up to 2.8ghz. Celeron chips totally suck and should not be bought unless you want an uber cheap system
then there are the prescott chips which the line has been officially terminated... bolth the chart and quote are taken straight from Anand Tech
"
Budget Processors
Processor...............Speed...Cache....FSB.......Launch Date
Mobile Celeron D 350 3.20 GHz 256 KB 533 MHz Cancelled
Mobile Celeron D 345 3.06 GHz 256 KB 533 MHz Already available
Mobile Celeron D 340 2.93 GHz 256 KB 533 MHz Already available
Mobile Celeron D 335 2.80 GHz 256 KB 533 MHz Already available
Mobile Celeron D 330 2.66 GHz 256 KB 533 MHz Already available
Mobile Celeron D 325 2.53 GHz 256 KB 533 MHz Already available
"
"Taking a look at the "transportable" processors, the only changes are the cancellation of the two fastest - and hottest - processors based off the NetBurst architecture. NetBurst was never really designed for the mobile sector, and most of the laptops that use these chips target the "desktop replacement" (DTR) segment rather than true mobility. The cancellations reflect Intel's acknowledgement of this fact, as well as their confidence in the Pentium M and Celeron M parts. They could have easily shipped these parts, but demand is simply not great enough to warrant it. Not only has Intel cancelled the 558 and 350 parts, but the entire NetBurst mobile line is scheduled to cease production in Q2'05. This is no real loss, as it means future laptops will simply shift to using more appropriate parts."
mobile celerons have the same long pipelines as their p4 counterparts and the 90nm line of celerons runs pretty hot and at 1/4 their p4 counterparts cache, you can expect that these chips are going to be a little lacking power wise...
THE AMD TURION...
I for one actually like the TURION Because it will keep intel on it's toes and Force intel to improve upon the pentium-m even more.
here is a nice little preview about what this processor is and where it comes from...
http://www.xbitlabs.com/news/mobile/display/20040408042811.html
Basically the Turion processor is an AMD64 that has had it's power consumption scaled down to 35 watts and given other power enhancing features... this is still 8 watts more than the highest rated pentium-m but the battery performance is still alot better than an 80 watt p4... It is safe to assume that this chip still has 12 pipelines like it's desktop counterpart...
I have only seen 2 benchmarks but they have shown that a pentium-m and an athalon64 at the same clock speed are about equal in performance... But it still consumes a bit more power but at the same time costs a little less... This is a very nice alternative to the pentium-m for the average AMD FAN and I would consider the Pentium-m and the AMD Turion processors about equal...
AMD TURION NEWS AND INFORMATION THREAD!!! over at laptop logic forums...
MORE INFORMATION WILL BE AVAILABLE ON THE TURION AFTER APRIL 18th WHICH IS THE OFFICIAL BEGINING OF AMD'S PROMOTIONAL CAMPAIGN.
2. Everything you ever wanted to know about the pentium-m
Just awhile ago I created a thread called POST YOUR BATTERY LIFE and the results have come in... People using laptops based on the p4 are getting battery life between 45 mins to 2.5 hours while people on laptops based on the Pentium-m are getting battery life time between 3 hours and 5.5 hours...
So one advantage of a pentium-m over a p4 you could say would be more than DOUBLE BATTERY LIFE
One of the things on most peoples minds when buying a laptop is the speed of the processor... most people want a nice fast processor that can handle anything they can throw at it. so when they see the pentium-m processor at only 1.6ghz they immediatelly think that the processor is completelly wimpy when this is just not the case... The pentium-m processor is so efficent that it is more powerful than p4 processors up to 1.5 times
its speed... for example... The 1.6ghz Pentium-m has the performance of a p4 2.4ghz pentium-4 processor. This is true for all the pentium-m processors.
If you follow this link... you will be taken to a few benchmark results which will show you the power of the Pentium-m. and if you think this benchmark is biased... think again... 20+ hardware review sites have all confirmed that a 1.6ghz pentium-m is equal or more powerful than a pentium4 at 2.4ghz.
http://www.anandtech.com/mobile/showdoc.aspx?i=1800&p=14
So another advantage of a pentium-m over a p4 is that "CLOCK FOR CLOCK PERFORMANCE" the pentium-m is 1.5-1.6 TIMES more powerful than a P4 if a p4 and a pm where running at the same speed.
ONE of the major downsides of the p4 in a laptop is power consumption... To fix this problem, Intel decided that while p4's are running on batteries that the clock speed would be halved... this in turn allmost halves the performance of the laptop but increases the battery life a bit... This feature can be disabled but then the p4 will have even less battery life... the pentium-m on the otherhand can run at full speed whenever needed without taking such a large hit to the battery life.
And what I would say the greatest advantage of the pentium-m is how cool it runs. the pentium m consumes alot less power than the p4 and thus runs very cool... The pentium-m is capapable of running full speed and full load on a passive desktop heatsinc (no fan) without overheating... this is a very nice feature that adds addational battery life because the fan on the processor does not need to run all the time. and also because the processor dosen't generate as much heat, you wont have to worry about being capapable of having children in the future like you would with other processors when using your laptop on your lap. (excessive heat kills... well you can figure it out)
Here is a link to some explained features of the pentium-m processor
http://www.gen-x-pc.com/centrino2.htm
DIFFERENT STEPINGS OF PENTIUM-M'S
ok so right now there are 3 different revisions of the pentium-m out right now...
Bianas 1 meg L2 cache 400mhz FSB, Max frequency (1.8ghz) DDR 333 RAM, 24 watts
Dothan 2 meg L2 cache 400mhz FSB, Max frequency (2.1ghz) DDR 333 RAM, 21 watts
Sonoma 2 meg L2 cache 533mhz FSB, Max frequency (2.13ghz) DDR2 533 DUAL CHANNEL RAM, 27 watts
In the lowest sleep state (before standby) they can easily consume less than 5 watts
There is even a CELERON version of the pentium-m... NOT TO BE CONFUSED WITH THE MOBILE CELERON D...This celeron-m has 1meg-512k L2 cache (depending on which one you get) this celeron-m actually perfoms much better than expected...
THE PENTIUM-M SPEC SHEET WITH THE OLD DOTHAN AND NEW SONOMA CORES (INCLUDING POWER CONSUMPTION RATINGS) I just love the guys at toms hardware sometimes because they can make a really nice table Instead of explaining each I think I will let this spec sheet do the talking.
http://www17.tomshardware.com/mobile/20050119/sonoma_alviso-08.html
MEMMORY BANDWIDTH OF OLD AND NEW Pentium-m chips and also a comparason to P4 chip...
http://www17.tomshardware.com/mobile/20050119/sonoma_alviso-03.html
PRICE OF Pentium-m CHIPS (pricing table)
http://www17.tomshardware.com/mobile/20050119/sonoma_alviso-09.html
Pleas note that as of JULY 24th of 2005 the price of most of the pentium-m chips will be cut by 33%...
here is another comparason table provided by INTEL
http://support.intel.com/support/processors/mobile/pm/sb/CS-007967.htm
The next Generation of centrino is expected toward the end of this year... this new generation is codenamed napa and is to be a dual core chip.
well there you have it... The pentium-m and the other mobile chips explained...
to be added in future: More Mobile AMD CHIPS...
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