|Introduction||March 27, 2018 (announced)|
March 27, 2018 (launched)
|Power dissipation||100 W|
NVSwitch is an 18-port NVLink switch. Fabricated on TSMC's 12 nm process for a total of 2 billion transistors, the switch has a total bandwidth of 900 GB/s. The NVSwitch is currently only utilized in Nvidia's own DGX-2 AI computer.
The NVSwitch was introduced with the launch of Nvidia's DGX-2 computer. The NVSwitch is a 2 billion transistor, 18-port, NVLink switch. With each port operating at 50 GB/s, the switch has a total bandwidth of 900 GB/s. The switch allows up to any nine devices to be routed to any of the other nine devices. In addition to the NVLink ports, the switch has addition I/O for control and management including x4 PCIe Gen 2 management port, I²C, and GPIO.
The DGX-2 uses 6 NVLinks per baseboard to create a fully-connected network of GPUs.
The DGX-2 has two baseboards to fully connect all 16 V100 GPUs to each other. Each switch does have 2 ports unused. It's possible those ports will be used in configurations involving the POWER9 microprocessors which have native support for NVLink 2.0.
- TSMC's 12nm FFN (Nvidia) process
- 2,000,000,000 transistors
- 20mm x 20mm (4 cm²) BGA package
- 1,940 pins
- 576 NVLink signals
- Nvidia, GTC 2018, March 2018
|first announced||March 27, 2018 +|
|first launched||March 27, 2018 +|
|full page name||nvidia/nvswitch +|
|instance of||integrated circuit +|
|ldate||March 27, 2018 +|
|market segment||Server + and Workstation +|
|power dissipation||100 W (100,000 mW, 0.134 hp, 0.1 kW) +|