![\"PCIe](\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2024\/02\/PCIe-GPU-to-GPU-1024x350.png\")
<\/figure>\n\n\n\nUsers should generally weigh the pros and cons of PCIe-based or SXM-based GPUs according to their specific application scenarios and performance requirements.<\/p>\n\n\n\n
Nvidia\u2019s GPU interconnect technology has two main types of memory slots: PCIe and SXM. These two interfaces have different functions and performance.<\/p>\n\n\n\n
PCIe interface is a widely used general protocol. Although it has comprehensive functions, it has a relatively slow transmission speed for GPU interconnect. Nevertheless, PCIe interface GPU cards can still communicate with CPU and other GPU cards in the server through PCIe slots. In addition, they can also exchange data with devices on external server nodes through network cards. If users want to improve the transmission speed of PCIe GPU cards, they can use NVLink bridge to achieve fast communication between GPU and CPU. However, it should be noted that this method usually only supports the connection between two GPU cards. That is to say, PCIe GPU cards usually need to appear in pairs, connected by NVLink Bridge, and transmit data through PCIe channel. It is worth noting that the latest PCIe standard has a limit of 128GB\/s in network bandwidth.<\/p>\n\n\n\n