Intel Comet Lake’s proposed PCIe 4.0 support could be bogus

Will Intel Comet Lake support PCIe 4.0? No. But there’s a debate raging on as to whether it could have. Tom’s Hardware spoke to sources claiming a few LGA 1200 socket motherboards feature some of the necessary parts for PCIe 4.0, but Intel’s chipset blunders were to blame for a lack of eventual support. However, SemiAccurate’s Charlie Demerjian rebuts their claims. According to Tom’s, Intel’s partners were reportedly ready to ship LGA 1200 motherboards fit, in part, for the advanced PCIe 4.0 specification. However, an issue in developing 400-series chipsets reportedly has forced Intel to ditch support and settle for PCIe 3.0 signalling rates. That’s theoretically half the available bandwidth platform-wide. Demerjian has since tweeted in response claiming “Comet never was slated to have and never will have PCIe4 for all the reasons I have been saying for the last few years.” Essentially, it’s the same PCH as Skylake and few changes are to be made to the 14nm design prior to Comet Lake’s slated 2020 release. Source :

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