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Guru3D.com » News » Intel Comet Lake-S CPUs and Z490 boards support PCI-E 4.0 (but it's not active)

Intel Comet Lake-S CPUs and Z490 boards support PCI-E 4.0 (but it's not active)

by Hilbert Hagedoorn on: 01/22/2020 12:21 PM | source: tomshardware | 42 comment(s)
Intel Comet Lake-S CPUs and Z490 boards support PCI-E 4.0 (but it's not active)

A new report on the web indicates that the upcoming Comet Lake-S processors (tenth generation of Intel Core for desktop) actually do support PCI Express 4.0, some Z490 motherboards are designed for it as well. However an issue prevents PCIe 4.0 to become usable, so the platform will support PCI-E 3.0 instead.

The reason behind this is presence of Jitter in the Z490 chipset signal, that causes instability in the data signal and that menas that specifications required for the PCI-Express 4.0 certification are simply not met. PCI-E 4.0 is working at very high frequencies, and that requires that the signal be completely clean.

 

 

Several manufacturers added external clock generators to eliminate this Jitter, however not everyone did, so Intel made the decision to not support PCI-E 4.0 on this new platform. 



Intel Comet Lake-S CPUs and Z490 boards support PCI-E 4.0 (but it's not active)




« Grab for free: All Half Life games · Intel Comet Lake-S CPUs and Z490 boards support PCI-E 4.0 (but it's not active) · MSI Creates new Radeon RX 5600 XT Gaming Z SKU due to performance firmware updates »

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Glottiz
Senior Member



Posts: 552
Joined: 2006-11-18

#5753454 Posted on: 01/23/2020 10:19 AM
You guys live in a hardware enthusiast forum bubble and you don't even know about it. Intel is doing just fine, more than fine actually.





Astyanax
Senior Member



Posts: 9542
Joined: 2018-03-21

#5753460 Posted on: 01/23/2020 10:35 AM
thats because technoignorance wins the day.

TLD LARS
Senior Member



Posts: 187
Joined: 2017-03-01

#5753571 Posted on: 01/23/2020 04:56 PM
Why you hope to see people being fired? Is it some kind of stress relief to you?


The new platform should have been PCIe 4.0 and it should have been coupled to a 10 core CPU, before that turned out to be unpractical because of high power usage.
Will the new platform even be different then the current platform after these changes?

This error will cost Intel millions of $ in lost revenue from sales, together with wasted money on development.
Big OEMs like Dell, Lenovo, HP and more, will also feel that there PCIe 4.0 design money was wasted and they would need to continue to pay a small extra cost (1$ guess) on every single motherboard made to comply with 4.0, instead of the more simple and cheaper 3.0.
There will also be setups that would no longer be possible now with the slower bus speed, like some SSDs, multiple GPUs and Raid controllers for small workstation use.

wavetrex
Senior Member



Posts: 1368
Joined: 2008-07-16

#5753575 Posted on: 01/23/2020 05:15 PM
Steam = More Chinese people playing games with their own accounts in Internet Cafe's, so same 1 Intel CPU might represent 50 or 100 steam accounts.
Those will not be upgraded until they are no longer capable of playing e-sports titles, which might be a long, long time.

Steam stats can be safely ignored, don't reflect reality.

Dimitrios1983
Senior Member



Posts: 255
Joined: 2018-03-01

#5753595 Posted on: 01/23/2020 07:15 PM
Steam = More Chinese people playing games with their own accounts in Internet Cafe's, so same 1 Intel CPU might represent 50 or 100 steam accounts.
Those will not be upgraded until they are no longer capable of playing e-sports titles, which might be a long, long time.

Steam stats can be safely ignored, don't reflect reality.

Correct, this was proven from a few sites like PCGAMER. Sorry to hurt AMD haters. Next quarter or two INTEL stock holders will be running around panicking while AMD shareholders will have happy tears in their eyes.

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