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[Tom's Hardware] PCIe 5.0 Is Ready For Prime Time

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post #21 of 37 (permalink) Old 01-20-2019, 07:54 PM
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lol.. PCI-E 4.0 is not even here and there's already PCI-E 5.0?
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post #22 of 37 (permalink) Old 01-20-2019, 08:57 PM
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Quote: Originally Posted by Baasha View Post
lol.. PCI-E 4.0 is not even here and there's already PCI-E 5.0?
https://blogs.synopsys.com/expressyo...done-pcie-5-0/
https://blogs.synopsys.com/expressyo...32gt-s-phy-ip/
//DesignWare PCIe 5.0 32GT/s PCIe PHY in (TSMC's) N7

https://www.synopsys.com/dw/ipdir.php?ds=dwc_pcie5_phy
//PCIe 5.0 PHY, TSMC16FFC x4, North/South (vertical) poly orientation


Board: https://pcisig.com/membership/about-us/board-directors
Electrical Spec: AMD, Intel
Protocol Spec: AMD, Intel
CEM Spec: Intel
Test/Plugfest Spec: Intel, Synopsys

// November 2018
=> PCIe 5? PCIe 4 isn’t even done yet!
-> Intel pushing schedule at an incredible pace.

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post #23 of 37 (permalink) Old 01-20-2019, 11:58 PM
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Quote: Originally Posted by 99belle99 View Post
I'm still rocking PCIe 2.0.
*looks to the right* - sees someone playing buttery smooth 4k 60 FPS via PCI-e 2.0 on a sandy chip.

meh. i'm sure awesome things will come, and yet another reason to keep waiting for 30x0 or 40x0 series.
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post #24 of 37 (permalink) Old 01-22-2019, 04:11 PM
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Alllllll the bandwidth and nothing to really do with it...

I'm all for it, lol. Now please just get SSD capacities and prices to keep dropping so I can shrink my NAS and get rid of the spinning rust

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post #25 of 37 (permalink) Old 01-22-2019, 04:47 PM
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I can always use faster m.2 drives

Maybe AMD will make their x570 boards pcie 5.0 ready. But PCIe 4.0 on paper.

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post #26 of 37 (permalink) Old 01-22-2019, 05:14 PM
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Consumers most likely wont see PCIE 5.0 for 4-5 years at minimum.


Look at how long PCIE 2.0 survived
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post #27 of 37 (permalink) Old 01-23-2019, 08:45 AM
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What's nice about PCIE 5.0 is you can have a 4x card with the same bandwidth of a 16x 3.0, or 8x 4.0. Even PCIE x1 would actually have a use cases think sound cards, in most cases you would not need nearly the amount of PCIE lanes, and if you do have a something insanely fast
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post #28 of 37 (permalink) Old 01-23-2019, 09:13 AM
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Quote: Originally Posted by mattliston View Post
Consumers most likely wont see PCIE 5.0 for 4-5 years at minimum.


Look at how long PCIE 2.0 survived
AMD plans to support AM4 until 2020. That most likely means we will see AM5 either Christmas time 2020, or sometimes in 2021. AM5 will bring DDR5 support and should also bring PCI-E 5.0 as well since it will have been out for a year+ by then. AMD will have time to get it into their processors for the new socket gen.




Quote: Originally Posted by Zam15 View Post
What's nice about PCIE 5.0 is you can have a 4x card with the same bandwidth of a 16x 3.0, or 8x 4.0. Even PCIE x1 would actually have a use cases think sound cards, in most cases you would not need nearly the amount of PCIE lanes, and if you do have a something insanely fast
yep. A 5.0 x1 slot will also support 10gb NICs which will be really nice. Finally a use for that one lonely x1 slot on boards.
Another advantage is that 5.0 will bring the ability to use dual port 400GbE NICs in boards without bandwidth contention. For use in business sector.





I doubt this will happen, but I am really hoping we see boards with four m.2 slots running PCI-E 4.0 x2 lane slots off the next gen chipsets. That will give them the same 3.5GB/s bandwidth we have now which is plenty overkill for what would become the "mass storage m.2 slots" on boards. Then they could also have 1-2 slots of PCI-E 5.0 either x4 or x2 slots that run off the CPU so that we also have high performance m.2 slots on boards. Think in a similar way as we have GPU slots now, when single m.2 from performance slots are in use it is x4 lanes, when both performance drive slots are used they both drop to x2 lanes. Two lanes of 5.0 would still give 7.85GB/s bandwidth per slot, which would just be crazy for drive storage performance. Giving us proper amounts of m.2 slots we can use while still using the normal PCI-E slots for GPUs should be something that is easily doable on PCI-E 5.0 if people would just start making m.2 x2 drives for a more mass storage oriented performance drive


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post #29 of 37 (permalink) Old 01-23-2019, 11:09 AM
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So does it mean that new NVMe SSD would use only 1 or 2 PCI-E 5.0 lanes, thus allow better allocation of these 12 PCI-E 5.0 lanes provided by new CPUs? Also GFX cards using only 4 lanes would allow shorter slots thus make MB cheaper.

Or does it mean CPU would provide PCI-E 4.0, and this new standard would be provided by chipset only, while connection between chipset and CPU would be at old speeds?
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post #30 of 37 (permalink) Old 01-24-2019, 07:51 AM
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Interesting idea, if bus speeds continue to outstrip the needs of GPUs, we could see GPUs with shorter connectors.


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