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• PCI Express (PCIe) Bus (2003)

1. PCIe 1.0: 2.5 GT/s (gigatransfers per second), 250 MB/s per lane
2. PCIe 2.0: 5 GT/s, 500 MB/s per lane
3. PCIe 3.0: 8 GT/s, 985 MB/s per lane
4. PCIe 4.0: 16 GT/s, 1969 MB/s per lane
5. PCIe 5.0: 32 GT/s, 3938 MB/s per lane
6. PCIe 6.0: 64 GT/s, 7875 MB/s per lane
7. PCIe 7.0: 128 GT/s, 15750 MB/s per lane

• DDR (Double Data Rate) Memory (2000)

1. DDR: 266 MT/s (megatransfers per second)
2. DDR2: 400 MT/s
3. DDR3: 800 MT/s
4. DDR4: 1600 MT/s
5. DDR5: 3200 MT/s