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Hardware PCI-Express 3.0 explained

Discussion in 'Article Discussion' started by Lizard, 27 Nov 2010.

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  1. Lizard

    Lizard @ Scan R&D

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    Lizard, 27 Nov 2010
    #1
  2. GravitySmacked

    GravitySmacked Mostly Harmless

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    Backwards compatible, thank god.
     
    GravitySmacked, 27 Nov 2010
    #2
  3. wyx087

    wyx087 Homeworld 3 is happening!!

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    with different encoding method, presumably the controller chip will need to understand both for backwards compatibility. wouldn't that drive the cost of motherboard and graphics card up?
     
    wyx087, 27 Nov 2010
    #3
  4. Guest-16

    Guest-16 Guest

    Not really, it's just another fixed function in the silicon. The fact that it's faster already pushes up cost more because of the quality of raw materials needed to make the faster process reliable.
     
    Guest-16, 27 Nov 2010
    #4
  5. Instagib

    Instagib Minimodder

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    +1 That was the biggest pain in the arse about AGP -> PCI-E.
     
    Instagib, 27 Nov 2010
    #5
  6. adidan

    adidan Guesswork is still work

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    But the article says that it will be cheaper to make as it draws less power...
     
    adidan, 27 Nov 2010
    #6
  7. battles_atlas

    battles_atlas What's a Dremel?

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    Yeah I'm still pissed about how my old PC basically became obselete three months after I bought it
     
    battles_atlas, 27 Nov 2010
    #7
  8. NickCPC

    NickCPC Minimodder

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    Nice article Rich, it's good to read some more technical stuff every once in a while.
     
    NickCPC, 27 Nov 2010
    #8
  9. frontline

    frontline Punish Your Machine

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    Interesting - more bandwidth for the future console ports.
     
    frontline, 27 Nov 2010
    #9
  10. Guest-16

    Guest-16 Guest

    No it says that 8GT/s is cheaper than 10GT/s, yet provides the same usable bandwidth. ;) It's a relative amount :)
     
    Guest-16, 27 Nov 2010
    #10
  11. adidan

    adidan Guesswork is still work

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    Ah got ya. 8GT/s cheaper than 10GT/s but still more expensive than the 5GT/s of PCIe 2.0. It was early. :D

    One thing though, are graphics cards close to maxing out the usage of PCIe2.0? I am a relative noob in this respect.
     
    adidan, 27 Nov 2010
    #11
  12. Tulatin

    Tulatin The Froggy Poster

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    I'm thankful they didn't increase power consumption again. 150W through the slot is plenty, and considering many enthusiasts own a power supply with at least a 6 pin connector, so we should be fine (Plus, I don't think people are going to be running 580 GTX cards with the current limiter off on 400W units)
     
    Tulatin, 27 Nov 2010
    #12
  13. AndreiD

    AndreiD What's a Dremel?

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    If I recall right, they didn't even max out PCIe1.1
     
    AndreiD, 27 Nov 2010
    #13
  14. wyx087

    wyx087 Homeworld 3 is happening!!

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    i don't think even gtx580 are hitting PCIe 2.0 limits.

    i shall take this upon myself and test :D if i place my sound card in 2nd 16x slot on my mobo, i'll force main GPU to run at 8x mode, which i can then test to see if performance is being limited. my guess is gtx580 won't even use full 8x PCIe 2.0 at the moment.
     
    wyx087, 27 Nov 2010
    #14
  15. Fizzban

    Fizzban Man of Many Typos

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    You said it. Phew!
     
    Fizzban, 27 Nov 2010
    #15
  16. Ljs

    Ljs Modder

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    Indeed!
     
    Ljs, 27 Nov 2010
    #16
  17. Yslen

    Yslen Lord of the Twenty-Seventh Circle

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    I'm sure I've seen tests somewhere that showed the GTX 480 wasn't restricted by x8, so as we already have x16 waiting to become useful, who on earth is going to make use of this at any point before 2015?
     
    Yslen, 27 Nov 2010
    #17
  18. Mraedis

    Mraedis Minimodder

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    High performance SSD's? ^^
     
    Mraedis, 27 Nov 2010
    #18
  19. HourBeforeDawn

    HourBeforeDawn a.k.a KazeModz

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    So since graphics cards arent saturating 2.0 specs I would assume this is more aimed at highend Raid SSD PCI-E devices? at least for the time being....
     
    HourBeforeDawn, 27 Nov 2010
    #19
  20. Yslen

    Yslen Lord of the Twenty-Seventh Circle

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    Actually there's an SSD still on the front page that could make use of it... I guess it will trickle down to us little guys eventually though.
     
    Yslen, 27 Nov 2010
    #20
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