Items tagged with PCI-SIG

We are just now seeing the fruits of PCI-SIG's labors with the PCI-Express 4.0 standard courtesy of AMD's Ryzen 3000/X570 platform, along with a handful of compatible peripherals (Radeon RX 5700 Navi, SSDs). Following that up, PCI-SIG earlier this year completed work on the next generation PCIe 5.0 specification, which expands full duplex bandwidth to a maximum of 128GB/sec (full x16 link). But it doesn't stop there; the PCI-SIG just announced that the PCIe 6.0 specification has now been moved up to Revision 0.3 and is on track to be finalized in 2021.  With the PCIe 6.0 spec, we'll see bandwidth double once again (compared to PCIe 5.0) to 256GB/sec with an x16 slot. PCI-SIG says that... Read more...
The PCI standards group PCI-SIG (Special Interest Group) comprised of AMD, Intel, NVIDIA, and other technology bigwigs announced it has finalized the specifications for the PCI Express 4.0 standard. It has previously announced in June at the group's DevCon event that the spec was feature complete and undergoing review. Now several months later PCI Express 4.0 is finalized, and fast. PCIe 4.0 offers a transfer rate of 16GT/s with flexible lane width configurations. That is double the raw bitrate of PCIe 3.0 and more than triple the bitrate of PCIe 2.0. In full duplex mode, that translates to around 64GB/s of bi-direction x16 bandwidth, whereas PCIe 3.0 topped out at around 32GB/s, and PCIe 2.0... Read more...
PCI-SIG, the consortium that is in charge of developing and maintaining the PCI Express standard, announced a couple of developments this week. One is the official launch of the PCIe 4.0 specification that will take the baton from PCIe 3.0, and the other is early work on the standards eventual replacement, PCIe 5.0. Starting with the former, PCIe 4.0 supports 16 gigatransfers per second (GT/s). With 16Gb/s of link bandwidth, PCIe 4.0 offers peak bandwidth of 64GB/s per 16-lane slot, effectively doubling the bandwidth of PCIe 3.0 while also maintaining backwards compatibility. In addition, the updated spec introduces flexible lane width configurations and lower power operation. "I’m pleased to... Read more...
PCI-SIG, the organization in charge of maintaining and developing PCI-Express, has announced that the third version of the PCIe standard is finished and ready for implementation. The new standard is fully compatible with earlier PCIe cards; a Gen 1 or Gen 2 card will run perfectly in a PCIe 3.0 slot. Just as PCIe Gen 2 offered double the performance of Gen 1, Gen 3 again offers twice the performance of Gen 2 (8GT/s). Unlike Gen 2, however, Gen 3 incorporates a number of additional changes to improve its efficiency. PCIe 1.1 and 2.0 both use an 8b/10b encoding scheme. This means that 8-bit words are mapped to 10-bit packets. This is part of why PCIe bandwidth numbers are quoted differently. Technically,... Read more...