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Why PCIe 4.0 will last so few?

 
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post #1 of 9 (permalink) Old 10-13-2019, 12:06 PM - Thread Starter
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Why PCIe 4.0 will last so few?

As title.
Is there any reason why the upcoming PCIe 4.0 will last so few?

PCIe 4.0 is expected to be replaced in two years by PCIe 5.0.
Why?

This will be the PCIe version that will leave less than others.

Do you expect that GPUs will be limited by PCIe 4.0 soon?

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post #2 of 9 (permalink) Old 10-13-2019, 12:17 PM
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post #3 of 9 (permalink) Old 10-13-2019, 12:21 PM
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you're asking why technology progresses?

PCI-E 3.0 launched in 2010 and we just now are getting GPUs that are limited by 3.0 8x. Probably at least another 10 years away from PCI-E 4.0 limiting GPUs.


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post #4 of 9 (permalink) Old 10-13-2019, 03:24 PM
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Quote: Originally Posted by The Pook View Post
you're asking why technology progresses?

PCI-E 3.0 launched in 2010 and we just now are getting GPUs that are limited by 3.0 8x. Probably at least another 10 years away from PCI-E 4.0 limiting GPUs.

Do you have a link to the benchmarks?

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post #5 of 9 (permalink) Old 10-13-2019, 03:58 PM
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Would PCIe 4.0 or PCIe 5.0 make any difference to SLI or Crossfire setups? Crossfire is now done all across the PCIe bus so I'd figure additional bandwidth might make a diff. there?
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post #6 of 9 (permalink) Old 10-13-2019, 04:01 PM
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Quote: Originally Posted by wingman99 View Post
Do you have a link to the benchmarks?

https://www.techpowerup.com/review/n...scaling/3.html

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post #7 of 9 (permalink) Old 10-13-2019, 04:07 PM
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"PCIe gen 3.0 x8, posting a small but tangible 2%–3% performance gain when going from gen 3.0 x8 to gen 3.0 x16" 2%-3% is something at least.

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post #8 of 9 (permalink) Old 10-13-2019, 04:30 PM
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Because it only took 2 years to come up with the final release for PCIe 5.0. It took them over 5 years to finalize 4.0. We are looking at 4 years of PCIe 4.0. We were stuck with 3.0 for 8+ years.

It's not always about how fast the lanes are together. It's about how fast they are apart. Faster lanes can mean less lanes per device. So PCIe 5.0 and 6.0 are going to be a good thing. And we will need them for USB 4.0.

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Last edited by ozlay; 10-13-2019 at 05:02 PM.
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post #9 of 9 (permalink) Old 10-13-2019, 04:32 PM
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Quote: Originally Posted by wingman99 View Post
Do you have a link to the benchmarks?
the only thing that'll make a difference there is ACTUAL support, in both the driver & the game. Eventually it'll come back to life, it'll just be a little while until we get there since DX12 is brand new. No ones really setup how to do it yet.

unlike all these deluded fools that think they're getting sli experience as both gpus sit @ ~50% in v-sync. (BUT I APPLIED THE BITS IN THE TOOL IT MUST BE WORKING!) ha.

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