Items tagged with pci express 5.0
Samsung finds itself in a braggadocios mood over the continued development of its vertical NAND flash memory chips, and in a blog post spanning nearly 1,400 words, the company talked about what makes it so special, and where it is headed. To that latter point, its 7th generation V-NAND flash memory chips are punching their ticket to both PCI Express 4 and, eventually, PCI Express 5.0 solid state drives. The chest-thumping is not unwarranted. Three-dimensional (3D) chip stacking is what has enabled higher capacities on increasingly fast storage products, at acceptable thickness levels for today's electronic devices, like smartphones and PCs. It's pretty remarkable when you take a moment to think...
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Up until today, there had not existed a solid state driver controller that takes advantage of the PCI Express 5.0 specification. That just changed, however, with Marvell's introduction of the Bravera SC5, the industry's first SSD controller to support PCIe 5.0 and NVMe 1.4b, to potentially double the performance of PCIe 4.0 SSDs. That claim comes by way of the bandwidth that PCIe 5.0 affords. In terms of raw speed, PCIe 5.0 doubles the transfer rate from PCIe 4.0 from 16GT/s to 32GT/s (that's GigaTransfers per second). That translates to around 4GB/s per lane, so in a x16 configuration, we're looking at around 64GB/s of unidirectional bandwidth, or 128GB/s. No consumer platform supports PCIe...
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Data centers have a new high-tech toy to play with, courtesy of Samsung. Called the CLX Memory Expander, it sort of looks like an external storage device (from the renders) in the vein of Samsung's T7 Portable SSD, but it is nothing of the sort. This is essentially a memory expansion device that leverages the new Compute Express Link (CLX) interconnect standard. Why not just stick with conventional DDR-based memory? Well, there is a limitation imposed by memory channels, whereas Samsung's CXL-enabled module scales memory capacity to terabyte levels, in DDR5 form to boot. In addition, Samsung says its new solution dramatically reduces system latency caused by memory caching. CXL, by the way, is...
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Intel has already confirmed it is planning to launch its 12th Generation Alder Lake-S desktop processors this year, but an exact release date eludes us. That's okay, because the lack of precise information keeps the rumor mill running. And to that end, word on the web is that Alder Lake-S will see a launch sometime in November. That is a tad later than some previous leaks and rumors indicated, which had Alder Lake-S potentially arriving in September. Assuming this latest report is correct and Intel is indeed now looking at a November launch, then perhaps the silicon shortage is to blame. Either way, it looks like Intel will be making good on its promise to get Alder Lake-S out the door before...
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Sure, there are many PC users out there pining for a hard-to-find AMD Ryzen 5000 series desktop CPU to build a new system around, and on the mobile front, AMD's latest generation Zen 3 stack is brand new as well. But even so, the rumor mill remains in full swing regarding what sits further down the road. Specifically Zen 4, along with a codename we have never seen attached to an AMD product before. That would be "Phoenix," which according to software engineer and prominent leaker Partick Schur, is the codename for AMD's next round of APUs (accelerated processing units). Or as AMD calls them, 'Ryzen Desktop/Mobile Processors with Radeon Graphics' (AMD no longer uses the term 'APU'). Call them...
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It may seem hard to believe, but storage makers are already approaching the limits of the PCI Express 4.0 bus in a typical NVMe drive, with the latest controller designs pushing transfer speeds in the neighborhood of 7 gigabytes per second (GB/s). That being the case, Silicon Motion is already at work developing controllers that leverage the PCI Express 5.0 bus. Before we get to that, let's go over the bandwidth limits of each PCI Express specification to date, starting with PCI Express 1.0... PCIe 1.0: 2.5GT/s transfer rate, 250MB/s per lane bandwidth, 4.0GB/s x16 bandwidth PCIe 2.0: 5.0GT/s transfer rate, 500MB/s per lane bandwidth, 8.0GB/s x16 bandwidth PCIe 3.0: 8.0GT/s transfer rate, 1GB/s...
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