PCIe 2.0 x2 10 Гбит/с

With performance transfer rates up to 1GB/s

Q: What are the benefits of PCIe 2.0? What business opportunities does it bring to the market?
A: While doubling the bit rate satisfies high-bandwidth applications, faster signaling has the advantage of allowing various interconnect links to save cost by adopting a narrow configuration. For example, a PCI Express 1.1 x8 link (8 lanes) yields a total aggregate bandwidth of 4Gbps, which is the same bandwidth obtained from a PCI Express 2.0 x4 link (4 lanes) that adopts the 5GT/s signaling technology. This can result in significant savings in platform implementation cost while achieving the same performance level. Backward compatibility is retained as 2.5 GT/s adapters can plug into 5.0 GT/s slots and will run at the slower rate. Conversely, PCIe 2.0 adapters running at 5.0 GT/s can plug into existing PCIe slots and run at the slower rate of 2.5 GT/s.

PCI Express 2.0
Группа PCI-SIG выпустила спецификацию PCI Express 2.0 15 января 2007 года. Основные нововведения в PCI Express 2.0:
Увеличенная пропускная способность. Спецификация PCI Express 2.0 определяет максимальную пропускную способность одной линии в 5 Гбит/с