PCIe 7.0 规范公布：达 128GT / s 惊人速度，NVMe SSD 速度达 64GB / s，支持 800Gig 以太网等
6 月 22 日消息，今天，发布和维护 PCIe 标准的联盟 PCI-SIG 宣布推出最新一代 PCIe 规范 PCIe 7.0 或 PCIe Gen 7 。该公告是在 2022 年 PCI-SIG 开发者大会上宣布的，该组织正在庆祝其成立 30 周年。
最新一代 PCIe 带宽翻了一番，在一条通道 (x1) 上单向实现 128GT / s 或 128Gbps 总吞吐量。综上所述，在 PCIe x16 插槽上，与独立显卡一样，双向总理论吞吐量为 512GB / s。同时，通常与 x4 PCIe 插槽配对的 NVMe SSD 可提供高达 64GB / s 的单向速度。最终规格将于 2025 年发布。
以下是新 PCIe 7.0 规范的亮点：
通过 x16 配置提供 128 GT / s 的原始比特率和高达 512 GB / s 的双向传输速率
使用 PAM4（4 级脉冲幅度调制）信令
聚焦渠道参数和覆盖范围
继续交付低延迟和高可靠性的目标
提高电源效率
保持与所有前几代 PCIe 技术的向后兼容性
[PCIe 7.0 规范公布：达 128GT / s 惊人速度，NVMe SSD 速度达 64GB / s，支持 800Gig 以太网等]
规划其路线图的公司可以包括下一代 PCIe 技术，并保证它将满足对可靠、高速、低延迟 I / O 互连的需求。PCIe 7.0 技术将扩大 PCI-SIG 的路线图，包括数据密集型应用和市场，如 800 Gig 以太网、人工智能和机器学习（AI / ML）、高性能计算（HPC）、量子计算、超大规模数据中心和云。
PCIe 7.0 specification announced: up to 128GT/s amazing speed, NVMe SSD speed up to 64GB/s, support 800Gig Ethernet, etc.
Today, the PCI-SIG, the consortium that publishes and maintains the PCIe standard, announced the release of the latest generation of PCIe specification, PCIe 7.0 or PCIe Gen 7. The announcement was made at the 2022 PCI-SIG Developer Conference, which is celebrating its 30th anniversary.
The latest generation of PCIe has doubled the bandwidth to achieve 128GT/s or 128Gbps of aggregate throughput in one direction on one lane (x1). To sum up, on a PCIe x16 slot, like a discrete graphics card, the total theoretical throughput in both directions is 512GB/s. Meanwhile, NVMe SSDs, typically paired with x4 PCIe slots, offer up to 64GB/s one-way speeds. Final specs will be released in 2025.
Here are the highlights of the new PCIe 7.0 specification:
Offers 128 GT/s raw bitrate and up to 512 GB/s bidirectional transfer rate via x16 configuration
Using PAM4 (4-level Pulse Amplitude Modulation) signaling
Focus on channel parameters and coverage
Continue to deliver low latency and high reliability goals
Improve power efficiency
Maintain backward compatibility with all previous generations of PCIe technology
[PCIe 7.0 specification announced: up to 128GT/s amazing speed, NVMe SSD speed up to 64GB/s, 800Gig Ethernet support, etc.]
Companies planning their roadmaps can include next-generation PCIe technology with assurances that it will meet the need for reliable, high-speed, low-latency I/O interconnects. PCIe 7.0 technology will expand PCI-SIG's roadmap to include data-intensive applications and markets such as 800 Gig Ethernet, artificial intelligence and machine learning (AI/ML), high performance computing (HPC), quantum computing, hyperscale data Center and cloud.
