PCI SIG | KitGuru https://www.kitguru.net KitGuru.net - Tech News | Hardware News | Hardware Reviews | IOS | Mobile | Gaming | Graphics Cards Thu, 23 Jun 2022 08:12:36 +0000 en-US hourly 1 https://wordpress.org/?v=6.4.3 https://www.kitguru.net/wp-content/uploads/2021/06/cropped-KITGURU-Light-Background-SQUARE2-32x32.png PCI SIG | KitGuru https://www.kitguru.net 32 32 PCI Express 7.0 will reach 128 GT/s speeds https://www.kitguru.net/channel/generaltech/matthew-wilson/pci-express-7-0-will-reach-128-gt-s-speeds/ https://www.kitguru.net/channel/generaltech/matthew-wilson/pci-express-7-0-will-reach-128-gt-s-speeds/#respond Wed, 22 Jun 2022 15:49:21 +0000 https://www.kitguru.net/?p=565352 PCIe 5.0 connectivity has only just hit the market, but PCI-SIG, the consortium responsible for specifying PCI connectivity standards, is already teasing PCIe 7.0. In a press release this week, PCI-SIG revealed plans for PCIe 7.0 to be as much as eight times faster than PCIe 5.0.  Today, PCI-SIG announced that it is developing the …

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PCIe 5.0 connectivity has only just hit the market, but PCI-SIG, the consortium responsible for specifying PCI connectivity standards, is already teasing PCIe 7.0. In a press release this week, PCI-SIG revealed plans for PCIe 7.0 to be as much as eight times faster than PCIe 5.0. 

Today, PCI-SIG announced that it is developing the PCIe 7.0 specification, with the goal of delivering 128 GT/s in raw bit rate and up to 512GB/s bi-directionally in an x16 configuration. This news comes just six months after PCI-SIG announced the specs for PCIe 6.0, which has yet to be adopted by the PC industry. As you would expect, the PCIe 7.0 specification is twice as fast as PCIe 6.0, in keeping with tradition of doubling speeds every generation.

Al Yanes, PCI-SIG President and Chairperson, reaffirmed the consortium's commitment to meeting high-bandwidth demands and improving power efficiency.

Considering we've yet to see PCIe 6.0 in action, and AMD is only just joining Intel in adopting PCIe 5.0 this year, it could be a few years before we see a PCIe 7 supported motherboard, let alone graphics cards and SSDs that can use up that bandwidth. As always though, PCIe 7.0 will be backwards compatible with all previous generations of PCIe technology.

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KitGuru Says: Do you think we'll see the industry stick with PCIe 5.0 for now and then skip over to PCIe 7.0 in the years ahead? 

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PCI-SIG announces official specifications for PCIe 6.0 https://www.kitguru.net/components/graphic-cards/joao-silva/pci-sig-announces-official-specifications-for-pcie-6-0/ https://www.kitguru.net/components/graphic-cards/joao-silva/pci-sig-announces-official-specifications-for-pcie-6-0/#respond Wed, 12 Jan 2022 12:00:11 +0000 https://www.kitguru.net/?p=546040 PCIe 5.0 connectivity has only just hit the market thanks to Intel's Alder Lake platforms. However, PCI-SIG, the consortium responsible for specifying the PCI connectivity standards, has already shared the official specifications of  the PCIe 6.0 interface. Three years have passed since PCI-SIG announced the PCIe 5.0 standard. Now, the consortium has come out to …

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PCIe 5.0 connectivity has only just hit the market thanks to Intel's Alder Lake platforms. However, PCI-SIG, the consortium responsible for specifying the PCI connectivity standards, has already shared the official specifications of  the PCIe 6.0 interface.

Three years have passed since PCI-SIG announced the PCIe 5.0 standard. Now, the consortium has come out to publicly announce its successor, PCIe 6.0. As per its specifications, the new standard was built to provide two times more data rate than PCIe 5.0, up to 64GT/s, and a maximum bidirectional bandwidth of up to 256 GB/s for x16 lanes (8GB/s per lane).

The new standard's design also offers lower latency thanks to the fixed-size Flow Control Unit (Flit)-based encoding, capable of leveraging Pulse Amplitude Modulation with 4x levels (PAM4) signalling. In addition, its uses Forward Error Correction (FEC) and cyclic redundancy check (CRC) to diminish the increased bit error rate characteristic from PAM4 signalling.

Like the previous standards, the 6th generation will be backwards compatible with older PCIe technologies, ensuring users can use older devices on new interfaces.

Discuss on our Facebook page HERE.

KitGuru says: Now that PCIe 6.0 has been announced, Nvidia, Intel and AMD may well update their roadmaps with the latest PCIe technology. If history serves as a lesson, it will take some time before any of them officially announce a platform supporting the new standard. Still, rumours about upcoming platform support are already out in the wild.

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The spec for PCIe 6.0 has already been announced https://www.kitguru.net/components/matthew-wilson/the-spec-for-pcie-6-0-has-already-been-announced/ https://www.kitguru.net/components/matthew-wilson/the-spec-for-pcie-6-0-has-already-been-announced/#respond Thu, 20 Jun 2019 11:00:53 +0000 https://www.kitguru.net/?p=416046 We are only just on the horizon of PCIe 4.0 equipped motherboards coming to market but the folks behind the standard are already two steps ahead. PCI-SIC, the group behind the PCI Express standard, has announced the specification for PCIe 6.0, which will deliver up to 64GT/s of bandwidth. PCI-Express 4.0 is going to be …

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We are only just on the horizon of PCIe 4.0 equipped motherboards coming to market but the folks behind the standard are already two steps ahead. PCI-SIC, the group behind the PCI Express standard, has announced the specification for PCIe 6.0, which will deliver up to 64GT/s of bandwidth.

PCI-Express 4.0 is going to be available starting this year alongside 3rd gen Ryzen processors and new motherboards. This has paved the way for much faster M.2 SSDs, with speeds bordering on 5000MB/s. However, technology is starting to move very quickly, with PCIe 5.0 set to double bandwidth again and PCIe 6.0 to be another huge improvement over that.

PCIe 4.0 has a 16GT/s transfer rate or 64GB/s x16 bandwidth. PCIe 5.0 will double this to a 32GT/s transfer rate and 128GB/s x16 bandwidth. PCIe 6.0 is planned to be available in 2022 and will double the numbers yet again to a 64GT/s transfer rate and 256GB/s of x16 bandwidth.

Typically, there has been several years between different PCIe generations but PCI-SIG chairman, Al Yanes, says that the group is “continuing the trend set with the PCIe 5.0 specification” and has PCIe 6.0 “on a fast timeline”. This will satisfy the industry’s demand for higher throughput and bandwidth.

KitGuru Says: I thought the PCIe 4.0 SSDs we saw at Computex were very impressive but looking at how quickly things are moving, we could be seeing rapid improvements over the next four years.

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PCIe 4.0 specifications have been finalised https://www.kitguru.net/components/graphic-cards/matthew-wilson/pcie-4-0-specifications-have-been-finalised/ https://www.kitguru.net/components/graphic-cards/matthew-wilson/pcie-4-0-specifications-have-been-finalised/#respond Thu, 26 Oct 2017 16:37:14 +0000 https://www.kitguru.net/?p=351892 Over the last few years, work on the PCIe 4.0 standard has been well under way. Last year, we saw the initial spec sheet that the PCI-SIG was aiming for and now today, the group announced that the PCIe 4.0 specification has been finalised. The new standard will allow devices to draw more power and transfer …

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Over the last few years, work on the PCIe 4.0 standard has been well under way. Last year, we saw the initial spec sheet that the PCI-SIG was aiming for and now today, the group announced that the PCIe 4.0 specification has been finalised. The new standard will allow devices to draw more power and transfer speeds for the 16x slot will jump to 16GT/s.

The PCI SIG (special interest group) has been developing PCI Express 4.0 since late 2011. The transfer rate for 16x PCIe 4.0 slots will be 16GT/s, which is just under 32GB/s. As far as power goes, power draw directly from the slot will remain at 75W but external power adapters should be able to exceed 225W.

Aside from delivering high performance 16 GT/s data rates with flexible lane width configurations, PCIe 4.0 will bring along additional enhancements, including reduced system latency, lane margining, superior RAS capabilities, scalability for added lanes/bandwidth and improved I/O virtualisation.

PCI-SIG partners can have access to the final specification already. Beyond that, the group has also begun work on the PCIe 5.0 specification, which is targeted for Q2 2019.

KitGuru Says: PCI Express has evolved a ton over the last decade and it looks like we are going to see continual improvements at a fast pace. We don’t know when we’ll start seeing PCIe 4.0 in motherboards just yet but we’ll keep an eye out for news on that front.

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PCI SIG to finalize OCuLink external PCI Express this fall https://www.kitguru.net/components/anton-shilov/pci-sig-to-finalize-oculink-external-pci-express-this-fall/ https://www.kitguru.net/components/anton-shilov/pci-sig-to-finalize-oculink-external-pci-express-this-fall/#comments Fri, 26 Jun 2015 06:59:18 +0000 http://www.kitguru.net/?p=256176 The PCI SIG has been developing external PCI Express interconnection for over three years now, but only later this year the organization will finalize the specification of the technology. The new cable will compete against Intel’s Thunderbolt 3. While the tech makes a lot of sense for various devices, it may not be adopted by …

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The PCI SIG has been developing external PCI Express interconnection for over three years now, but only later this year the organization will finalize the specification of the technology. The new cable will compete against Intel’s Thunderbolt 3. While the tech makes a lot of sense for various devices, it may not be adopted by the industry widely.

The OCuLink 1.0 technology will offer four PCI Express lanes with data rates starting at 8GT/s [gigatransfers per second] per lane as well as up to 4GB/s of peak bandwidth, which is similar to PCI Express 3.0. The initial version of OCuLink will use copper cables, but in the future PCI SIG may adopt optical cables for the technology. The OCuLink spec will be finalized this fall, reports EETimes citing the head of the PCI SIG.

The technology has headroom to scale in the future, hence, when PCIe 4.0 is finalized by 2017, the OCuLink will also gain performance. It is unclear at what point will the tech adopt optical cables, but it is highly likely that after 2017.

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The OCuLink has been in development for many years and right now it seems to be inferior to Thunderbolt 3, which supports maximum bandwidth of 40Gb/s (5GB/s) and uses industry-standard USB type-C connector. The OCuLink can theoretically be cheaper than Thunderbolt 3 since it does not require a proprietary controller. However, since it uses a new connector, it is unlikely that PC makers will be inclined to integrate it. Perhaps, makers of servers and telecommunication equipment will be more interested in external PCI Express bus. Alternatively, OCuLink could be used to connect internal components of PCs to mainboards (e.g., solid-state drives). The OCL cables look considerably thinner than SATA Express and should not be too expensive.

Discuss on our Facebook page, HERE.

KitGuru Says: It looks like semi-proprietary Thunderbolt has managed to win the battle against open-standard OCuLink by simply entering the market earlier and adopting an industry-standard connector.

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PCIe 4.0 with 16GT/s data-rates and new connector to be finalized by 2017 https://www.kitguru.net/components/graphic-cards/anton-shilov/pci-express-4-0-with-16gts-data-rates-and-new-connector-to-be-finalized-by-2017/ https://www.kitguru.net/components/graphic-cards/anton-shilov/pci-express-4-0-with-16gts-data-rates-and-new-connector-to-be-finalized-by-2017/#comments Thu, 25 Jun 2015 23:44:49 +0000 http://www.kitguru.net/?p=256157 PCI Express bus has been evolving for over ten years now. So far the technology has tripled its initial data rate, but the next step is taking a longer time. PCI SIG claims that the fourth generation PCI Express specification will be finalized in 2017 and will materialize this decade. The new tech will use a …

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PCI Express bus has been evolving for over ten years now. So far the technology has tripled its initial data rate, but the next step is taking a longer time. PCI SIG claims that the fourth generation PCI Express specification will be finalized in 2017 and will materialize this decade. The new tech will use a new connector and will be the last copper version of PCI Express.

The PCI SIG [special interest group] has been developing PCI Express 4.0 since late 2011. The target data rate of the new bus is 16GT/s [gigatransfers per second] per lane and the organization has consistently set this target even though many did not believe that it was viable using a wide bus with copper interconnects. The standard is still not finalized because participants have to agree on a number of parameters, including interconnect attributes, fabric management as well as programming interface required to design and build systems and peripherals that are compliant with the PCI Express 4.0 specification.

For example, so far the PCI SIG has not agreed on the maximum length of PCIe 4.0 traces without retimers. Many applications, such as servers and communications equipment, need longer interconnections.

“We are getting 16GT/s, something no one thought was possible a few years ago,” said Al Yanes, president of the PCI SIG, in an interview with EE Times. “The base distance is still being validated but it’s typically 7 inches or so. Longer channels of 15 inches or so with two connectors will have retimers, but Gen 3 has used retimers – now we will need to use them for shorter long channels.”

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PCI Express 4.0 will utilize a new connector, but the specification will be backward compatible mechanically and electrically with PCI Express 3.0, which means that it will be possible to use today’s add-in-cards in PCIe 4.0-based systems, but future AICs will not work with PCIe 3.0.

“We’ve done a lot of analysis on the connector – we tried everything possible,” said Mr. Yanes. “We have some top engineers in our electrical work group and they’ve come through – its exciting to see the amount of activity and participation.”

16GT/s base transfer rate will allow PCI Express 4.0 x1 interconnection to transfer up to 2GB of data per second, whereas the PCIe 4.0 x16 slots used for graphics cards and ultra-high-end solid-state drives will provide up to 32GB/s of bandwidth. Higher transfer rates will also let mobile devices to save power since it will take less time to transfer data.

At present Al Yanes believes that fifth-generation PCI Express will have to rely on optical, not copper links. This means a major change, which will happen sometimes in the next decade. Keeping in mind that bandwidth is a major factor that limits performance of supercomputers, PCI Express standard featuring optical links could emerge rather sooner than later.

“I got to believe engineers will find way to make [optics] cost effective by the time they are needed – even four years ago there was a big push on it,” said the head of the PCI SIG.

Developers at the PCI SIG hope to release PCI Express 4 version 0.7 specification this year, but the technology will be finalized only by 2017.

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KitGuru Says: The evolution of PCI Express is an incredible tale. After a decade on the market, the technology is looking forward another decade, an unbelievable thing for the high-tech world.

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