1. Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Couple of CPU questions...

Discussion in 'General Hardware' started by Pinchy, Nov 12, 2006.

  1. Pinchy New Member

    Joined:
    Apr 29, 2006
    Messages:
    5,105 (1.26/day)
    Thanks Received:
    284
    Location:
    Sydney, Australia
    Ive been looking around at CPU's for socket 478 and have gathered a couple of questions. Im not that interested in upgrading, cus i like my current cpu, and i dont think other cpu's on socket 478 are gonna be that much better, just wanna know a couple of things :)

    whats with Pentium M? Are they better than P4? Do they OC better? Would a 2Ghz PM be better than a 3Ghz P4 (overclocked/non-overclocked)?

    What is so good about extreme edition CPU's? (Pentuim%
     
    10 Year Member at TPU
  2. Aevum

    Joined:
    Oct 26, 2005
    Messages:
    642 (0.15/day)
    Thanks Received:
    11
    Location:
    Madrid, Spain
    theres a whole story about the pentium M

    when the pentium 3 was dying out, intel had 2 options, continue on the P3 arquitecture with a shorter more optimized pipeline, which was the P3 tualatin, or make a processor with a longer instruction pipeline that would reach a higher frequency but would do less per mhz, a arquitecture we know as netburst and is the basis for all the Pentium 4 processors up to the prescott,

    the idea was that the increse in working frequency would make up for the for the low efficiency per mhz, and since they were still in the mhz race with AMD, it seemed like the right path to take,

    while the tualatins, were only produced in low ammounts and finaly only used for laptops since their high intruction per mhz ment lower operating frequency meaning lower consumption,

    the Pentium 3 tualatin lead to the Pentium M Banias which was the first Pentium M, that actually fallowed the AMD doctrine, which was lower mhz, more operations per mhz, better efficiency, since people are stupid and think more mhz = more performance, then intel assumed those processors would not succede on a desktop level,

    the original Pentium 3 tualatin was Socket 370, a celeron tualatin running at 1.3ghz (fastest tualatin produced) could basicly bring down a P4 willameth at 1.6-1.8ghz at some cases,
    since the first netburst implementations were, misrable....

    when the p4 started reaching 2.4ghz-2.8ghz, netburst started to mature and the increse in frequency started making up for the low efficiency, so the pentium tualatin was forgutten, untill the centrino plataform came, which was powered by the socket 479 "Banias" Pentium M, which developed in to the dothan pentium M, which then developed in to the Yonah which was the first dual core Pentium M, and since netbust reached its limits, they couldnt take the clock any higher or make the pipeline longer due to heat dissipation and power consumption issues, they fell back on the Pentium M series to make the Core and Core duo processors, which are the conroes,

    they have better intrucction per mhz ratio then the Pentium 4 processors, so they require a lower frecuency to perform on the same level as a netburst based pentium 4, in some cases the differenace in frequency between similar performing processors could be up to 0.8ghz or 1ghz, basicly, if the intel israel labs didnt keep the tualatin project alive to create the pentium M series, then intel would be proper fucked right now,

    as for overclocking ability, the lower operating frequency and the lower power consumption gives you more headroom to overclock before you reach the mechanical and thermal limits of the arquitecture, as always, remember that a processor overclocking is limited by the quality of the manufacturing process, the purity of the silicon waffle used and random manufacturing conditions, basicly, a processor from one waffle will overclock differently from another that came from a different waffle becuase of possible chemical composition differenaces in the waffle, atmospheric conditions, some asshole who didnt wash his hands after going to the bathroom and then handling the equipment, what shift worked on the waffle, condition of the labs air filters at the time and other random manufacturing conditions, thats why hardcore overclockers take also in to account processor stepping and series,

    as for the extreme edition processors, its basicly a normal processor from the series that tested to be able to sopport a higher frequency, usualy equiped with more cache memory and has an unlocked multiplyer, so they give a bit more of overclocking headroom and give a bit more performance, the price is usualy alot higher, and in most cases, the increse in price dosnt justify the increse in performance,
     
    10 Year Member at TPU
  3. Pinchy New Member

    Joined:
    Apr 29, 2006
    Messages:
    5,105 (1.26/day)
    Thanks Received:
    284
    Location:
    Sydney, Australia
    OMG thank you HEAPS Aevum for the info :D....finally ive got it cleared up :p like srsly thanks :)...much appreciated!

    So what would be better, a 2Ghz PM @ 533 FSB w/2mb L2 cache or my current comp (3Ghz Prescott P4 @ 800FSB w/1mb L2 cache) or a Celeron D @ 3Ghz?

    Judging by what you said, id say the P4 would be better as it can OC a lot higher...and i finally get why AMD processors arent as fast but just as powerful :D

    Thanks again!!
     
    10 Year Member at TPU
  4. Aevum

    Joined:
    Oct 26, 2005
    Messages:
    642 (0.15/day)
    Thanks Received:
    11
    Location:
    Madrid, Spain
    the 2ghz PM is actually a better processor then the 3ghz prescott, but the differance isnt enough to justify a motherboard and memory change aswell as the processor

    remember, pentium M processors are socket 479, not compatible with 478 and 775,
    unless you have a Asus socket 478 motherboard, theres an adaptor (check asus website for board compatability)
     
    10 Year Member at TPU
  5. Pinchy New Member

    Joined:
    Apr 29, 2006
    Messages:
    5,105 (1.26/day)
    Thanks Received:
    284
    Location:
    Sydney, Australia
    yeah i think my board is compatible...thats the thing :D

    But my bro has a PM 2.0Ghz, as well as 1.2GB of DDR533 in his laptop, and the 3Ghz gets better cpu benchmarks, such as sciencemark and cpu score in 3dmark06, so how does that work :p?

    EDIT: i just found a socket 478 PM :p
     
    Last edited: Nov 13, 2006
    10 Year Member at TPU
  6. DanTheBanjoman Señor Moderator

    Joined:
    May 20, 2004
    Messages:
    10,480 (2.20/day)
    Thanks Received:
    1,382
    Nice story about the Tualatin, however, the fastest produced model was the Pentium 1.4Ghz 512K (or was there another faster model?), which wasn't a Celeron. They lowered the cache of the Tualatin because it was faster than the Willamette P4. Besides that they removed SMP functionality from these crippled versions.
    The only difference between the Celerons and the Tualatin256 is the bus, the Celeron runs at 100 and the P3 at 133. However the Celerons could easily run at 133, some models at 1.6-1.7Ghz using the stock cooler.

    Lovely core it was :)


    Also, for S775 there is another huge difference for the Extreme Editions, they have HTT enabled. (Pentium D doesn't)
     
    10 Year Member at TPU
  7. Pinchy New Member

    Joined:
    Apr 29, 2006
    Messages:
    5,105 (1.26/day)
    Thanks Received:
    284
    Location:
    Sydney, Australia
    so would it be worth it to get a PM 2GHz? (400FSB and do the voltmod to increase clock speed or 533Mhz and leave it...2mb L2 cache, cus i can get one for like $40 AUD :p...so if its better than my current CPU ill get it, cus ill sell this one and actually make a profit :p)

    or even a Celeron D 3Ghz?

    Or should i just stick to my P4?
     
    10 Year Member at TPU
  8. DanTheBanjoman Señor Moderator

    Joined:
    May 20, 2004
    Messages:
    10,480 (2.20/day)
    Thanks Received:
    1,382
    $40AUD is a really good price:)
    Though I'm not sure what the converter costs. Forget about the Celeron D.
     
    10 Year Member at TPU
  9. Pinchy New Member

    Joined:
    Apr 29, 2006
    Messages:
    5,105 (1.26/day)
    Thanks Received:
    284
    Location:
    Sydney, Australia
    10 Year Member at TPU
  10. DanTheBanjoman Señor Moderator

    Joined:
    May 20, 2004
    Messages:
    10,480 (2.20/day)
    Thanks Received:
    1,382
    10 Year Member at TPU
  11. Pinchy New Member

    Joined:
    Apr 29, 2006
    Messages:
    5,105 (1.26/day)
    Thanks Received:
    284
    Location:
    Sydney, Australia
    I dnt get it mate :p

    I also dont see how a USED ASUS P4P800-E DELUXE can go for $330 and a NEW ASUS P5B conroe mobo only be $220

    ...we are weird down here :p
     
    10 Year Member at TPU
  12. tkpenalty New Member

    Joined:
    Sep 26, 2006
    Messages:
    6,956 (1.78/day)
    Thanks Received:
    345
    Location:
    Australia, Sydney
    All that stuff is not WORTH IT!!! Wise advice: Upgrade to LGA 775, prices of 478 generation parts are beginning to rise. And no, pentium M is no way faster than the Northwood/Prescott core at all.
     
    10 Year Member at TPU
  13. Pinchy New Member

    Joined:
    Apr 29, 2006
    Messages:
    5,105 (1.26/day)
    Thanks Received:
    284
    Location:
    Sydney, Australia
    i know everything is rising...check out the link to my other thread...i can update my whole comp to conroe/ddr2/pcie for like 100 bucks :D
     
    10 Year Member at TPU
  14. Zedicus

    Joined:
    Sep 30, 2004
    Messages:
    500 (0.11/day)
    Thanks Received:
    42
    im gunna vouch for the p3 tulatins. i JUST gave mine up the other day. it was a 1.4ghz chip with the 512k cache on a non overclockable intel board with an agp slot. it still used pc-133 sdram. i had 2-256mb sticks and an overclocked x700 128mb card. i tell u what this lil bugger ripped. i was video card limited in games and it still turned out playable frame rates of like need for speed most wanted at 1024x768 low-medium detail. ive always wanted to come across a dual tualtin compliant board with an agp slot and ddr memory but theres only like 2 manufactures that made boards like that and they are RARE. i bet it would give newer single cpu stuff a kick in the shorts though. and hang with lower end dual core stuff. with an x800xt or something it would do any game decently.
     
    10 Year Member at TPU

Currently Active Users Viewing This Thread: 1 (0 members and 1 guest)