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Comet Lake S won’t be getting PCIe 4.0 support on upcoming Intel Z590 motherboards

Upcoming Intel Z590 motherboards will indeed feature PCIe 4.0 support, though not for Comet Lake (Image source: Intel)
Upcoming Intel Z590 motherboards will indeed feature PCIe 4.0 support, though not for Comet Lake (Image source: Intel)
A WCCFTech investigation into AIB Z590 partner boards indicates that Intel’s new platform will only support the PCIe 4.0 standard with Rocket Lake S processors. While Comet Lake S owners will be able to use Z590 boards, they’ll be missing out on this key feature that Ryzen 3000 and Ryzen 5000 parts already support.
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WCCFTech recently claimed that Intel’s upcoming Z590 motherboards will not feature PCIe 4.0 support for Comet Lake S processors, limiting support for the latest PCIe standard to the upcoming Rocket Lake S lineup. Evidently, Z590 motherboards from multiple AIB partners featured stickers stating that PCIe 4.0 support would be limited to Rocket Lake.

This could come as a disappointment to Comet Lake S owners who were planning on a platform upgrade: they’ll need a new CPU, too, in order to make use of the new standard. To be clear, though, current games don’t scale much with higher levels of PCIe bandwidth: at 4K, even a card like the GeForce RTX 3080 sees a 1-2 percent performance drop-off, if that. 

Where PCIe 4.0 does matter is in terms of high-speed SSD storage. Epic’s Nanite demo showcased what was possible when leveraging high-speed SSD storage on the PlayStation 5. In the PC space, PCIe 4.0 support is needed to match PS5 SSD speeds. This means that, at least in the years to come, PCIe 4.0 could have a tangible impact on performance or image quality as high-speed storage becomes more relevant to game design. 

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Arjun Krishna Lal
Arjun Krishna Lal - Tech Writer - 426 articles published on Notebookcheck since 2019
I've had a passion for PC gaming since 1996, when I watched my dad score frags in Quake as a 1 year-old. I've gone on to become a Penguin-published author and tech journalist. Apart from working as an editor at Notebookcheck, I write for outlets including TechSpot and Gamingbolt. I’m the Director of Content at Flying V Group, one of the top 5 digital marketing agencies in Orange County. When I'm not traveling the world, gathering stories for my next book, you can find me tinkering with my PC.
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2021 01 > Comet Lake S won’t be getting PCIe 4.0 support on upcoming Intel Z590 motherboards
Arjun Krishna Lal, 2021-01- 4 (Update: 2021-01- 4)