Intel Comet Lake-S CPUs To Run on 400 Series Boards With New Socket

It looks like Intel’s upcoming Comet Lake-S processors would end up being supported on a new socket, ending backward compatibility on existing motherboards. According to the latest leaks & listings within the new Intel server chipset driver, there are at least two chipset generations after 300 series that are planned for launch for next-generation processors.

Intel Comet Lake-S Supported on 400 Series Motherboards With New LGA Socket, 10nm Ice Lake-S Would Be Compatible With 495 Series Boards

The listing in the new Intel chipset driver mentions the 400 series chipset family and the 495 series chipset family. Currently, the 8th and 9th Generation family are compatible with 300 series boards which feature the LGA 1151 V2 socket. The LGA 1151 V2 socket was a revised version of LGA 1151 V1, featuring a different pin layout and configuration (more here). This meant that while the 6th & 7th Gen CPUs ran on LGA 1151 V1 socket, they couldn’t run on LGA 1151 V2. Similarly, 8th and 9th Gen CPUs weren’t backward compatible.

Related Intel’s Desktop Consumer Roadmap Leaks Out Too – Cascade Lake-X in Q3 2019 With Up To 18 Cores, Comet Lake-S Q1 2020 With Up To 10 Cores

It looks like Intel wants to make their sockets last two CPU generations and hence, the upcoming 10th Gen CPUs (Comet Lake-S) would also be supported by a new socket which is being dubbed as LGA 1151 V3. Now it is mentioned by Momomo_US that the new socket would feature more pins so it isn’t just a layout change but an entirely new socket if this is true. The socket would be used on the new 400 series motherboards which would include the Z490 motherboards series as the flagship mainstream chipset for K series processors.


The reason why a new socket is required is that the Comet Lake-S family is expected to feature 10 cores and as such, it would require more power from the socket. The new socket will be optimized for the upcoming processors and should help deliver stable operation. The Comet Lake-S series is confirmed to be part of the 10th Generation family, featuring the 10000 series nomenclature as confirmed in a mobility lineup leak.

The other chipset in the listing is the 495 series which is designed for future Ice Lake-S processors. Now we know that 10nm isn’t coming to mainstream users till 2021 from the recent roadmap leak but there’s a slight chance that Intel’s Rocket Lake-S CPUs which are expected to launch in 2020 can be featuring compatibility on the new chipset.

Related Intel Comet Lake Processors To Feature Up To 10 Cores, Confirmed in Linux Support List – Will Also Have 8 Core and 6 Core Variants

The reason being that there’s a rumor going on that Intel’s Sunny Cove core architecture is being ported to 14nm and there’s a chance that Rocket Lake-S processors would be utilizing that. Since Sunny Cove is the same core architecture which will be used on Ice Lake 10nm processors, it might be possible that Intel’s consumer desktop line of Rocket Lake-S processors can end up being supported by the 495 series chipset before a proper introduction of 10nm on desktop platforms.

Intel CPU Generation Comparison:

  Intel Sandy Bridge Platform Intel Ivy Bridge Platform Intel Haswell Platform Intel Broadwell Platform Intel Skylake Platform Intel Kaby Lake Platform Intel Coffee Lake Platform Intel Coffee Lake Refresh Platform Intel Comet Lake Platform Intel Rocket Lake Platform Intel Ice Lake Platform
Processor Architecture Sandy Bridge Ivy Bridge Haswell Broadwell Skylake Kaby Lake Coffee Lake Coffee Lake Comet Lake Rocket Lake Ice Lake
Processor Process 32nm 22nm 22nm 14nm 14nm 14nm+ 14nm++ 14nm++ 14nm++ 14nm++ 10nm
Processors Cores (Max) 4/8 4/8 4/8 4/8 4/8 4/8 6/12 8/16 10/20 10/20 TBD
Platform Chipset 6-Series “Cougar Point” 7-Series “Panther Point” 8-Series “Lynx Point” 9-Series “Wild Cat Point” 100-Series “Sunrise Point” 200-Series “Union Point” 300-Series 300-Series 400-Series 400-Series? 495-Series
Platform Socket LGA 1155 LGA 1155 LGA 1150 LGA 1150 LGA 1151 LGA 1151 LGA 1151 LGA 1151 TBD TBD TBD
TDPs 35-95W 35-77W 35-84W 65W 35-91W 35-91W 35-95W 35-95W TBD TBD TBA
Platform Desktop LGA Desktop LGA Desktop LGA Desktop LGA Desktop LGA Desktop LGA Desktop LGA Desktop LGA Desktop LGA Desktop LGA Desktop LGA
Launch 2011 2012 2013-2014 2015 2015 2017 2017 2018 2020 2021 2020?

Here’s What We Know of Intel’s 10th Gen Comet Lake-S Processor So Far

The Coffee Lake-Refresh series successor would be the Comet Lake-S lineup which would feature 2 core, 4 core, 6 core, 8 core, and 10 core SKUs. All of these processors are based on the same 14nm architecture which we have seen since Skylake so not much to change there except the improved process node which should deliver better clocks.

The Comet Lake-S family is scheduled for a consumer launch in Q1 2020 and a commercial launch in Q2 2020. The Comet Lake-S family would be featuring higher TDPs than current Coffee Lake CPU family and would feature higher clocks too over their predecessors so expect clocks range around the 5 GHz mark. The 10th Gen family will be branded with the Core i*-10*** series nomenclature and will be featuring support on the new 400 series motherboards. We should get a taste of some early motherboard concepts at Computex 2019.

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