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PCIe 6.0 Specification To be Finalized in 2021
While you are really diggin' that PCI-Express 4.0 slot of yours, the design for 5.0 has been finished, and wait for it, yep ... PCIe 6.0 is in full development and is to be finalized as a standard in 2021 already.
PCI-SIG; This year has been challenging for us all and we hope that you and your families are staying healthy and safe. Despite the trials that we have faced, PCI-SIG® is adapting our events and workshops to these new times and pressing on in specification development. From ushering our Developers Conferences into the virtual age or developing modified virtual Compliance Workshops, PCI-SIG has continued to prioritize members education and engagement in 2020.
Perhaps our most exciting announcement is in a continued effort to double the bandwidth of our PCI Express® (PCIe®) specifications, PCI-SIG has officially released the PCIe 6.0 Specification, Version 0.7 to our members.
PCIe 6.0 Specification Features Overview
- A data rate of 64 GT/s speeds, doubling the 32GT/s data rate of the PCIe 5.0 specification
- A move to PAM4 (Pulse Amplitude Modulation with 4 levels) encoding
- Low-latency Forward Error Correction (FEC) with additional mechanisms to improve bandwidth efficiency
- Backwards compatibility with all previous specification generations
Explore PCIe 6.0 Technology
We have many educational resources available for both PCI-SIG members and non-members. If you haven’t yet watched it, I invite you to view Debendra Das Sharma’s highly attended PCIe 6.0 specification webinar deep dive. Because of the overwhelming support and interest this webinar received, Debendra has also developed various blogs answering audience questions on advanced specification features like PAM4, L0P and FEC.
PCIe 6.0 Specification finalized in 2021 and 4 times faster than PCIe 4.0 - 06/11/2020 03:11 PM
The PCI Express 6.0 specification announcement is apparently going viral again. Nothing changed really, the technology will double the data rate to 64 GT/s while maintaining backward compatibility. Th...
PCIe 6.0 Specification, Version 0.5 has been released - ready for first prototypes - 02/24/2020 09:46 AM
PCI Express 6.0 technology will double the data rate to 64 GT/s while maintaining backward compatibility with previous generations and delivering power efficiency and cost-effective performance. The f...
PCI-SIG Announces PCIe 6.0 Specification - 06/19/2019 07:35 AM
PCI-SIG today announced that PCI Express (PCIe ) 6.0 technology will double the data rate to 64 GT/s while maintaining backwards compatibility with previous generations and delivering power efficiency...
Undying
Senior Member
Posts: 17311
Joined: 2008-08-28
Senior Member
Posts: 17311
Joined: 2008-08-28
#5851209 Posted on: 11/05/2020 07:05 PM
If multi gpus ware not dead pcie4 would be saturated pretty quckly.
If multi gpus ware not dead pcie4 would be saturated pretty quckly.
jbscotchman
Senior Member
Posts: 5873
Joined: 2004-01-28
Senior Member
Posts: 5873
Joined: 2004-01-28
#5851251 Posted on: 11/05/2020 08:17 PM
Get back to me in 8 years. No offense Hilbert. As the saying goes: "Don't shoot the messenger."
Get back to me in 8 years. No offense Hilbert. As the saying goes: "Don't shoot the messenger."
wavetrex
Senior Member
Posts: 1444
Joined: 2008-07-16
Senior Member
Posts: 1444
Joined: 2008-07-16
#5851375 Posted on: 11/06/2020 02:25 AM
Seems that everyone on the internet commenting about PCI-e 4.0 is useless keep forgetting about the newly introduced feature "Smart Memory Access" where CPU has direct 64-bit mapped access to entire GPU memory.
I don't know exactly what it does, but it seems to me that the CPU could have parts of a game loaded straight into the GPU, and then just instruct the GPU to "use" that portion of VRAM.
And swap stuff in an out in the background while the GPU is doing other stuff.
Sounds like the kind of scenario where I/O bandwidth increase can help.
---
I imagine future CPU/GPU/SSD would be treated like one giant pool of memory, with ability to execute code and read/write data straight of any of them.
It would be like a giant caching structure:
L1 cache - Inside the CPU cores
L2 cache - Very near the CPU cores
L3 cache - On the CPU die
L4 cache - The RAM and VRAM
L5 cache - PCI-e SSD
Base storage ?.... the internetz.
Games could stream stuff in and out as needed, only using the SSD as a cache.
Isn't there a game which already does that ? Hmm... something with airplanes I think.
Seems that everyone on the internet commenting about PCI-e 4.0 is useless keep forgetting about the newly introduced feature "Smart Memory Access" where CPU has direct 64-bit mapped access to entire GPU memory.
I don't know exactly what it does, but it seems to me that the CPU could have parts of a game loaded straight into the GPU, and then just instruct the GPU to "use" that portion of VRAM.
And swap stuff in an out in the background while the GPU is doing other stuff.
Sounds like the kind of scenario where I/O bandwidth increase can help.
---
I imagine future CPU/GPU/SSD would be treated like one giant pool of memory, with ability to execute code and read/write data straight of any of them.
It would be like a giant caching structure:
L1 cache - Inside the CPU cores
L2 cache - Very near the CPU cores
L3 cache - On the CPU die
L4 cache - The RAM and VRAM
L5 cache - PCI-e SSD
Base storage ?.... the internetz.
Games could stream stuff in and out as needed, only using the SSD as a cache.
Isn't there a game which already does that ? Hmm... something with airplanes I think.
DmitryKo
Senior Member
Posts: 408
Joined: 2011-08-08
Senior Member
Posts: 408
Joined: 2011-08-08
#5851653 Posted on: 11/06/2020 07:12 PM
PCIe 5.0 / 6.0 roadmap has already been discussed in earlier threads, there is nothing much to add.
PCIe 6 Announced
PCI Express 6.0 Specification Revision 0.3
PCIe 6.0 Specification finalized in 2021 and 4 times faster than PCIe 4.0
We already have SSD controllers that stretch PCIe 4.0 bandwidth to the maximum 8 Gbyte/s allowed by 4-lane M.2 form-factor.
Phison Going For 7GB/sec Storage on PCIe 4.0 with PS5018-E18
Samsung 980 PRO M.2 gets PCIe Gen4 and performance up to 6,500 MB/s
Review: Samsung 980 Pro 1TB NVMe SSD
Lexar hits 7 GB/s with new M.2 PCIe 4.0 SDD
16-lane PCIe 6.0 bandwidth of 126 GByte/s matches dual-channel DDR5-8400 system memory and this would allow faster swapping of game resources with GPU video memory.
PCIe 5.0 / 6.0 roadmap has already been discussed in earlier threads, there is nothing much to add.
PCIe 6 Announced
PCI Express 6.0 Specification Revision 0.3
PCIe 6.0 Specification finalized in 2021 and 4 times faster than PCIe 4.0
We already have SSD controllers that stretch PCIe 4.0 bandwidth to the maximum 8 Gbyte/s allowed by 4-lane M.2 form-factor.
Phison Going For 7GB/sec Storage on PCIe 4.0 with PS5018-E18
Samsung 980 PRO M.2 gets PCIe Gen4 and performance up to 6,500 MB/s
Review: Samsung 980 Pro 1TB NVMe SSD
Lexar hits 7 GB/s with new M.2 PCIe 4.0 SDD
16-lane PCIe 6.0 bandwidth of 126 GByte/s matches dual-channel DDR5-8400 system memory and this would allow faster swapping of game resources with GPU video memory.
Click here to post a comment for this news story on the message forum.
Senior Member
Posts: 12503
Joined: 2003-05-24
we barely have 4.0 on MB and CPU...
Storage that acual uses that available speed would be amazing if they didnt cost more then some gpu's at 2tb.
Do any current GPU even come close to saturating 3.0? let alone 4.0?