pcie版本行代码传输速率吞吐量x1x4x8x161.08b/10b2.5GT/s250MB/s1GB/s2GB/s4GB/s2.08b/10b5GT/s500MB/s2GB/s4GB/s8GB/s3.0128b/130b8GT/s984.6MB/s3.938GB/s7.877GB/s15.754GB/s4.0128b/130b16GT/s1.969GB/s7.877GB/s15.754GB/s31.508GB/s5.0128b/130b32GT/s or 25GT/s3.9GB/s or 3.