Anandtech article reveals iPhone 3GS CPU/GPU in Depth

Discussion in 'iPhone' started by winterspan, Jun 9, 2009.

  1. winterspan macrumors 65816

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    #1
  2. gloss macrumors 601

    gloss

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    #2
    Didn't you hear? It's an incremental upgrade. :)
     
  3. nfl46 macrumors 603

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  4. hefeglass macrumors 6502a

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    #4
    lol...clock speed is the least of it my friend....





    this is the speed bump ive been dreaming about since BEFORE I got my iphone (had a 2nd gen touch..the iphone seems SLOOOOW after that...)3g s will be nasty
     
  5. ryhno45 macrumors regular

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  6. GfPQqmcRKUvP macrumors 68040

    GfPQqmcRKUvP

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    #6
    So is this writer for Anandtech just guessing, or did he somehow find out information no one else has released? I'm just wondering; if anyone were able to dissect a processor just by looking at some quick promo videos it's Anandtech, but the writer seemed awfully certain that the 3G S had this new Cortex processor...
     
  7. retroneo macrumors 6502a

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    Cortex A8 is an amazing CPU. 256MB of DDR2 also boosts performance over the 128MB of DDR1.
    OpenCL is supported on the PowerVR SGX. Perhaps it will be available in iPhone OS 4.0 for the 3GS.

    This isn't just a 20% boost in performance. It's a full 100-200% leap.

    Once developers begin exploring the full power of the new CPU and GPU, there's a whole new round of possibilities for Apps.
     
  8. skwoytek macrumors 6502a

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    John Gruber of Daring Fireball called this on May 21st. Of course, he called most of what we saw on Monday... He's had reliable inside sources for a while. Here's what he said regarding this "incremental" 400MHz to 600MHz jump.

    "The original EDGE iPhone and iPhone 3G use the same 400 MHz processor. Let’s say the rumors are right — and I believe they are — that the next-generation iPhone’s CPU will be running at 600 MHz. In the same way that, say, a 90 MHz Pentium was more than 1.5 times as fast as a 60 MHz 486, the 600 MHz CPU in the next iPhone will be more than 1.5 times as fast as the current 400 MHz iPhone CPU."

    In other words, they didn't just up the clock speed - it's a change in processor technology.
     
  9. BMac702 macrumors regular

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  10. vega07 macrumors 65816

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    #10
    all these guessing games wouldn't be necessary if apple can just tell us the hardware used.

    this is ridiculous.
     
  11. Eso macrumors 68000

    Eso

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    #11
    The article says nothing about 256 MB of DDR2 memory. Only mention of 256 is 256 KB of L2 cache.
     
  12. Pressure macrumors 68040

    Pressure

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    #12
    The rumours were still flying around that the SoC would include 256MB instead of 128MB. It should have room considering it is 65nm compared to 90nm of the original iPhone and the iPhone 3G.

    We don't know for sure yet.
     
  13. GfPQqmcRKUvP macrumors 68040

    GfPQqmcRKUvP

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    #13
    Bumpity bump bump. Anyone?
     
  14. patrickdunn macrumors 6502a

    patrickdunn

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    #15
    Can anybody explain in lay-man's terms what the Cortex-A8 and PowerVR SGX will do for a phone?
     
  15. gloss macrumors 601

    gloss

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    #16
    Make it, on average, 2x faster. The whole complaint here was that all Apple was giving us were layman's terms. :D
     
  16. chrmjenkins macrumors 603

    chrmjenkins

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    #17
    There is an open-source project called open pandora (openpandora.org) that is using the same SoC as the Pre (and same processor as 3GS, apparently). They have full ubuntu, firefox, quake 3 etc. all running on it. It's fast.
     
  17. redman042 macrumors 68020

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    #18
    Let me put this in a nutshell:

    - The CPU clock speed is faster
    - The CPU architecture is more advanced, with two simultaneous processing pipelines instead of 1
    - There's twice the processing cache plus an additional level of cache
    - There's twice the application RAM and it's double the clock speed.
    - The graphics core is all-new. It is more advanced in pretty much all the same ways as the CPU. It will push more pixels, more triangles, and has full shaders.

    WOW.

    So this is by no means just a 200 mHz bump in clock speed. It's like ripping the V6 out of your car, and replacing it with a V8, plus a supercharger, plus headers, plus a better transmission. You get the idea.

    People won't really understand the true power of this device until they play with it for a few days
     
  18. brendon2020 macrumors 6502

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    #19
    great read, can't wait to see some benchmarks.
     
  19. dagomike macrumors 65816

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    #20
    How do we know there is more RAM? Just curious... I didn't see it in that article.
     
  20. gloss macrumors 601

    gloss

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    #21
    It has since come out through other sources. There are threads about it. Run a search for 3GS tech specs.
     
  21. chrmjenkins macrumors 603

    chrmjenkins

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    #22
    The T-mobile site confirms 256MB RAM along with corroborating the 600 MHZ processor.

    Also, it would be a crime to give this thing a cortex A8 and only 128MB of RAM.

    edit: FWIW, ARM lists the ARM11 architecture peaking out at 710 DMIPS (Dhrystone Million Instructions Per Second. It's a much more fair comparison than simple MHZ) for a 130nm process (the iphone uses a 90nm process, but has it downclocked from 600 to 412 MHZ, so it's probably a fair guess).

    The Cortex A8 is capable of 2000 DMIPS at 600 Mhz.
     
  22. jalpert macrumors 6502

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    #23
    It will be interesting to see what the first 3G S specific application is. I'm hoping for the people that don't have the 3G S on order that devs make the apps compatible for both revisions.

    I think there is a good chance that on launch day there could be a 3G S category.
     
  23. winterspan thread starter macrumors 65816

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    #24
    The 710 is for the ARM11 running around 650mhz. a 412Mhz iPhone 3G is probably running around 450-500 DMIPS.

    The Cortex-A8 does 2DMIPS/mhz, so the 600Mhz iPhone 3GS should be pushing around 1200 DMIPS.

    Awesome power! I can't wait to see how fast the web browser is!
     
  24. =MuLti-CeLL= macrumors 6502a

    =MuLti-CeLL=

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    #25
    What an exciting discussion! Can't wait to get my hands on this thing!

    Of course I don't have much to compare it to since this is my first iPhone. ;)
     

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