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PCIe 3.0 Protocol Delayed

By - Source: Tom's Hardware US | B 29 comments

Tweaktown is reporting that the PCI-Special Interest Group (PCI-SIG) has decided to delay the next generation PCIe protocol (3.0) until Q2 2010, pushing the new bus specification back an entire year. Previously 3.0 was scheduled for a release this year, followed by PCIe 3.0-based products appearing in 2010.

Computerworld expands upon the story, reporting that the SIG is taking extra time to verify and guarantee backward compatibility, electrical requirements, and other "granular specification details." When released, PCIe 3.0 is expected to provide faster data transfer rates of up to 32 GB/sec, and a lower power consumption than the previous PCIe 2.0 protocol.

"We don't need it yet, but we will need it soon," said Nathan Brookwood, principal analyst at Insight 64 in regards to the 3.0 delay. "Otherwise the bus becomes the bottleneck." High-speed network controllers and many disk controllers tend to be based on PCI Express. With disks and networks providing faster transfer rates, the PCIe protocol needs to get faster in order to support the bandwidth, hence the eventual requirement for PCIe 3.0.

According to Al Yanes, president and chairman of PCI-SIG, the backward compatibility aspect will allow a PCIe 3.0 card to plug into a PCIe 2.0 system without a hitch; the same will hold true for a PCIe 2.0 card plugged into a PCIe 3.0 system.

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  • 23 Hide
    T3kl0rD , August 5, 2009 9:52 PM
    They should take their time to do it right since 2.0 is nowhere close to saturation.
  • 12 Hide
    Hanin33 , August 5, 2009 9:34 PM
    nice that this SIG can get things done in a timely and efficient manner... are you listening 802.11 SIG??????
Other Comments
  • 12 Hide
    Hanin33 , August 5, 2009 9:34 PM
    nice that this SIG can get things done in a timely and efficient manner... are you listening 802.11 SIG??????
  • -4 Hide
    Gin Fushicho , August 5, 2009 9:48 PM
    Maybe Nvidia will finally release something better then the GTX295 when PCI-e 3.0 comes out.
  • 23 Hide
    T3kl0rD , August 5, 2009 9:52 PM
    They should take their time to do it right since 2.0 is nowhere close to saturation.
  • 6 Hide
    gwolfman , August 5, 2009 10:23 PM
    It'll be nice though... possibly running SLI configs on PCIe x4 links/lanes might be possible :) 
  • 8 Hide
    hannibal , August 5, 2009 10:28 PM
    Yep! Better do it well! Year 2010 seems to be interesting. We will see PCI-e 3.0, Win7 sp1, maybe finally the n version of wireles lan..., second genereation of DX11 cards, usb3. But nothing that you have to wait.
  • 2 Hide
    megamanx00 , August 5, 2009 10:34 PM
    I think that it will be a while before network controllers and such need more than 4x PCI-E 2.0 lanes. I suppose it may make sense on the server side of things though.
  • 8 Hide
    Kaiser_25 , August 5, 2009 10:42 PM
    Ya prolly good they are taking their time and not rushing it. This sounds like a responsible move on their part...quality assurance seems to be dead these days.
  • 9 Hide
    7amood , August 5, 2009 10:59 PM
    PCIe 3.0
    SATA 6.0 Gbps
    USB 3.0

    enough reasons for me to wait before building my i7...
    hope prices will go down while waiting.

    on a second thought... maybe i'll buy and i7 then upgrade my motherboard later.
  • 7 Hide
    cdillon , August 5, 2009 11:00 PM
    The best part about PCIe 3.0 is how much more you'll be able to do with just ONE PCIe lane. Think embedded systems, laptops, etc. where space is a premium. Fewer lanes necessary to do a job means fewer pins on chips, which makes the chips smaller, fewer traces on the motherboard, etc. And the power-savings they mention with PCIe 3.0 are obviously an advantage there as well.
  • 5 Hide
    IzzyCraft , August 5, 2009 11:13 PM
    7amoodPCIe 3.0SATA 6.0 GbpsUSB 3.0enough reasons for me to wait before building my i7...hope prices will go down while waiting.on a second thought... maybe i'll buy and i7 then upgrade my motherboard later.

    The computer industry is such a pain, there is always something better around the corner it's all a matter of how much better.
  • 0 Hide
    tipoo , August 6, 2009 1:52 AM
    New PCI-E standard, new USB standard, new SATA standard...New computer with none of these is just 7 days old. Ah, the computer industry.
  • 1 Hide
    Anonymous , August 6, 2009 1:56 AM
    This is probably a bit of a golden age of computing, with the semiconductor companies expressing doubts about being able to get below 20nm without quantum effects screwing it up, this progress may hit a wall soon... Although when I upgrade to my Phenom III 1060 BE 3.4ghz 12-core, socket AM4+, 22nm codename: "pwnville", I may finally have a truly future-proof computer...
  • 0 Hide
    tipoo , August 6, 2009 2:46 AM
    Its_all_about_PhenomIIIThis is probably a bit of a golden age of computing, with the semiconductor companies expressing doubts about being able to get below 20nm without quantum effects screwing it up, this progress may hit a wall soon... Although when I upgrade to my Phenom III 1060 BE 3.4ghz 12-core, socket AM4+, 22nm codename: "pwnville", I may finally have a truly future-proof computer...


    And then optical circuits would be right around the corner :-P
  • 0 Hide
    CerianK , August 6, 2009 2:47 AM
    Very minor correction: Since the spec is actually in GT/s (gigatransfers/second) and transfers are metric (not binary), the speed (presuming saturation of all 32 lanes) would therefore be 31.25 GT/s.
  • 0 Hide
    CerianK , August 6, 2009 3:04 AM
    Whoops... correction to the correction: I meant 31.25 GiB/s
  • -1 Hide
    nachowarrior , August 6, 2009 3:39 AM
    7amoodPCIe 3.0SATA 6.0 GbpsUSB 3.0enough reasons for me to wait before building my i7...hope prices will go down while waiting.on a second thought... maybe i'll buy and i7 then upgrade my motherboard later.


    if you're going to wait and want intel they have an i9, specs are floating around the interwebs somwhere.

    I remember reading about pci-e before it even came out, it was the first true parallelism on home pc's other than raid for your hdd's. I was pumped about it then, and it's seemed to revolutionize graphics power vs. dollars recently. Take that into consideration along with the fact that graphics cards on the market now kick the crap out of most of the games on the market and for around 100 bucks you can make the assumption that pci-e 3.0 isn't needed quite yet.
    having said all of that i'd like to upgrade my machine now, but i think i might end up waiting for usb 3.0, sataIII and pci-e 3.0 since they all seem to be hitting the market around the same time time period. :-p

    I HATE WAITING!
  • 1 Hide
    eddieroolz , August 6, 2009 4:47 AM
    What is this, a delayfest today?
  • 0 Hide
    LuxZg , August 6, 2009 8:34 AM
    cdillonThe best part about PCIe 3.0 is how much more you'll be able to do with just ONE PCIe lane. Think embedded systems, laptops, etc. where space is a premium. Fewer lanes necessary to do a job means fewer pins on chips, which makes the chips smaller, fewer traces on the motherboard, etc. And the power-savings they mention with PCIe 3.0 are obviously an advantage there as well.


    Exactly! Thanks for saving me some typing :) 

    I just wish that PCI hardware would be dead by than. I'm sick and tired of roaming through dozens of cards that are NOT PCIe (in any version) just to find an odd one from time to time that IS PCIe-based.

    Graphics cards are only exceptions, but everything else is still mostly on old PCI bus.

    To make it even worse, here are some numbers from local shopping-search which specializes in computer equipment:
    - one Gbit ethernet card
    - one eSATA controller (one port!!)
    .. and I'm already on 60+$ hardware.

    So while PCIe 3.0 is nothing but positive, never mind when it comes, if 95% of all add-in boards in 2010 will still be PCI cards - PCIe 3.0 won't be important :( 
  • 2 Hide
    jimmysmitty , August 6, 2009 9:07 AM
    T3kl0rDThey should take their time to do it right since 2.0 is nowhere close to saturation.


    Even 1.1 is not saturated by a dual GPU solution such as a GTX295 or even a HD4890. They move so fast.

    When PCIe 1.0 came out, AGP was still not fully tapped.

    I guess that maybe it will be able to provide more full speed lanes or possibly increase bandwidth and make way for 3 GPUs per PCB......
  • 0 Hide
    CHRISTLUBAS , August 6, 2009 1:01 PM
    megamanx00I think that it will be a while before network controllers and such need more than 4x PCI-E 2.0 lanes. I suppose it may make sense on the server side of things though.

    How bout 6 Core Processors(mainstream)and SSDs lots and I5
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