Fråga om Evga Geforce GTX 560 Ti.

Width in bits 	1–32
Number of devices 	

One device each on each endpoint of each connection.
PCI Express switches can create multiple endpoints out of one endpoint to allow sharing one endpoint with multiple devices.
Capacity 	

Per lane (each direction):

    v1.x: 250 MB/s (2.5 GT/s)
    v2.x: 500 MB/s (5 GT/s)
    v3.0: 1 GB/s (8 GT/s)
    v4.0: 2 GB/s (16 GT/s)

16 lane slot (each direction):

    v1.x: 4 GB/s (40 GT/s)
-->v2.x: 8 GB/s (80 GT/s)             <-----------
    v3.0: 16 GB/s (128 GT/s)