Computer Bus Technology Bit Rate Speed
| Technology | Rate | Rate | Year |
| I²C | 3.4 Mbit/s | 425 kB/s | 1992 (standardized) |
| Apple II series (incl. Apple IIGS) 8-bit/1 MHz | 8 Mbit/s | 1 MB/s | 1977 |
| SS-50 Bus 8-bit/1 MHz | 8 Mbit/s | 1 MB/s | 1975 |
| STD-80 8-bit/8 MHz | 16 Mbit/s | 2 MB/s | |
| ISA 8-Bit/4.77 MHz | 0 W/S: every 4 clocks 8 bits 1 W/S: every 5 clocks 8 bits | 0 W/S: every 4 clocks 1 byte 1 W/S: every 5 clocks 1 byte | 1981 (created) |
| STD-80 16-bit/8 MHz | 32 Mbit/s | 4 MB/s | |
| I3C (HDR mode) | 33.3 Mbit/s | 4.16 MB/s | 2017 |
| Zorro II 16-bit/7.14 MHz | 42.4 Mbit/s | 5.3 MB/s | 1986 |
| ISA 16-Bit/8.33 MHz | 66.64 Mbit/s | 8.33 MB/s | 1984 (created) |
| Europe Card Bus 8-Bit/10 MHz | 66.7 Mbit/s | 8.33 MB/s | 1977 (created) |
| S-100 bus 8-bit/10 MHz | 80 Mbit/s | 10 MB/s | 1976 (published) |
| Serial Peripheral Interface Bus (Up to 100 MHz) | 100 Mbit/s | 12.5 MB/s | 1989 |
| Low Pin Count | 125 Mbit/s | 15.63 MB/s | 2002 |
| STEbus 8-Bit/16 MHz | 128 Mbit/s | 16 MB/s | 1987 (standardized) |
| C-Bus 16-bit/10 MHz | 160 Mbit/s | 20 MB/s | 1982 |
| HP Precision Bus | 184 Mbit/s | 23 MB/s | |
| STD-32 32-bit/8 MHz | 256 Mbit/s | 32 MB/s | |
| NESA 32-bit/8 MHz | 256 Mbit/s | 32 MB/s | |
| EISA 32-bit/8.33 MHz | 266.56 Mbit/s | 33.32 MB/s | 1988 |
| VME64 32-64bit | 400 Mbit/s | 40 MB/s | 1981 |
| MCA 32bit/10 MHz | 400 Mbit/s | 40 MB/s | 1987 |
| NuBus 10 MHz | 400 Mbit/s | 40 MB/s | 1987 (standardized) |
| DEC TURBOchannel 32-bit/12.5 MHz | 400 Mbit/s | 50 MB/s | |
| NuBus90 20 MHz | 800 Mbit/s | 80 MB/s | 1991 |
| MCA 32bit/20 MHz | 800 Mbit/s | 80 MB/s | 1992 |
| APbus 32-bit/25 MHz | 800 Mbit/s | 100 MB/s | |
| Sbus 32-bit/25 MHz | 800 Mbit/s | 100 MB/s | 1989 |
| DEC TURBOchannel 32-bit/25 MHz | 800 Mbit/s | 100 MB/s | |
| Local Bus 98 32-bit/33 MHz | 1056 Mbit/s | 132 MB/s | |
| VESA Local Bus (VLB) 32-bit/33 MHz | 1067 Mbit/s | 133.33 MB/s | 1992 |
| PCI 32-bit/33 MHz | 1067 Mbit/s | 133.33 MB/s | 1993 |
| HP GSC-1X | 1136 Mbit/s | 142 MB/s | |
| Zorro III 32-bit/async (eq. 37.5 MHz) | 1200 Mbit/s | 150 MB/s | 1990 |
| VESA Local Bus (VLB) 32-bit/40 MHz | 1280 Mbit/s | 160 MB/s | 1992 |
| Sbus 64-bit/25 MHz | 1.6 Gbit/s | 200 MB/s | 1995 |
| HP GSC-2X | 2.048 Gbit/s | 256 MB/s | |
| PCI 64-bit/33 MHz | 2.133 Gbit/s | 266.7 MB/s | 1993 |
| PCI 32-bit/66 MHz | 2.133 Gbit/s | 266.7 MB/s | 1995 |
| AGP 1× | 2.133 Gbit/s | 266.7 MB/s | 1997 |
| PCI Express 1.0 (×1 link) | 2.5 Gbit/s | 250 MB/s | 2004 |
| RapidIO Gen1 1× | 2.5 Gbit/s | 312.5 MB/s | |
| HIO bus | 2.560 Gbit/s | 320 MB/s | |
| GIO64 64-bit/40 MHz | 2.560 Gbit/s | 320 MB/s | |
| PCI Express 2.0 (×1 link) | 5 Gbit/s | 500 MB/s | 2007 |
| AGP 2× | 4.266 Gbit/s | 533.3 MB/s | 1997 |
| PCI 64-bit/66 MHz | 4.266 Gbit/s | 533.3 MB/s | |
| PCI-X DDR 16-bit | 4.266 Gbit/s | 533.3 MB/s | |
| RapidIO Gen2 1× | 5 Gbit/s | 625 MB/s | |
| PCI 64-bit/100 MHz | 6.4 Gbit/s | 800 MB/s | |
| PCI Express 3.0 (×1 link) | 8 Gbit/s | 984.6 MB/s | 2011 |
| Unified Media Interface (UMI) (×4 link) | 10 Gbit/s | 1 GB/s | 2011 |
| Direct Media Interface (DMI) (×4 link) | 10 Gbit/s | 1 GB/s | 2004 |
| Enterprise Southbridge Interface (ESI) | 8 Gbit/s | 1 GB/s | |
| PCI Express 1.0 (×4 link) | 10 Gbit/s | 1 GB/s | 2004 |
| AGP 4× | 8.533 Gbit/s | 1.067 GB/s | 1998 |
| PCI-X 133 | 8.533 Gbit/s | 1.067 GB/s | |
| PCI-X QDR 16-bit | 8.533 Gbit/s | 1.067 GB/s | |
| InfiniBand single 4× | 8 Gbit/s | 1 GB/s | |
| RapidIO Gen1 4× | 10 Gbit/s | 1.25 GB/s | |
| RapidIO Gen2 2× | 10 Gbit/s | 1.25 GB/s | |
| UPA | 15.360 Gbit/s | 1.92 GB/s | |
| Unified Media Interface 2.0 (UMI 2.0; ×4 link) | 20 Gbit/s | 2 GB/s | 2012 |
| Direct Media Interface 2.0 (DMI 2.0; ×4 link) | 20 Gbit/s | 2 GB/s | 2011 |
| PCI Express 1.0 (×8 link) | 20 Gbit/s | 2 GB/s | 2004 |
| PCI Express 2.0 (×4 link) | 20 Gbit/s | 2 GB/s | 2007 |
| AGP 8× | 17.066 Gbit/s | 2.133 GB/s | 2002 |
| PCI-X DDR | 17.066 Gbit/s | 2.133 GB/s | |
| RapidIO Gen2 4× | 20 Gbit/s | 2.5 GB/s | |
| Sun JBus (200 MHz) | 20.48 Gbit/s | 2.56 GB/s | 2003 |
| HyperTransport (800 MHz, 16-pair) | 25.6 Gbit/s | 3.2 GB/s | 2001 |
| PCI Express 3.0 (×4 link) | 32 Gbit/s | 3.94 GB/s | 2011 |
| HyperTransport (1 GHz, 16-pair) | 32 Gbit/s | 4 GB/s | |
| PCI Express 1.0 (×16 link) | 40 Gbit/s | 4 GB/s | 2004 |
| PCI Express 2.0 (×8 link) | 40 Gbit/s | 4 GB/s | 2007 |
| PCI-X QDR | 34.133 Gbit/s | 4.266 GB/s | |
| AGP 8× 64-bit | 34.133 Gbit/s | 4.266 GB/s | |
| RapidIO Gen2 8x | 40 Gbit/s | 5 GB/s | |
| Direct Media Interface 3.0 (DMI 3.0; ×4 link) | 40 Gbit/s | 3.94 GB/s | 2015 |
| PCI Express 3.0 (×8 link) | 64 Gbit/s | 7.88 GB/s | 2011 |
| PCI Express 2.0 (×16 link) | 80 Gbit/s | 8 GB/s | 2007 |
| RapidIO Gen2 16x | 80 Gbit/s | 10 GB/s | |
| PCI Express 5.0 (×4 link) | 128 Gbit/s | 15.75 GB/s | 2019 |
| PCI Express 3.0 (×16 link) | 128 Gbit/s | 15.75 GB/s | 2011 |
| CAPI | 128 Gbit/s | 15.75 GB/s | 2014 |
| QPI (4.80GT/s, 2.40 GHz) | 153.6 Gbit/s | 19.2 GB/s | |
| HyperTransport 2.0 (1.4 GHz, 32-pair) | 179.2 Gbit/s | 22.4 GB/s | 2004 |
| QPI (5.86GT/s, 2.93 GHz) | 187.52 Gbit/s | 23.44 GB/s | |
| QPI (6.40GT/s, 3.20 GHz) | 204.8 Gbit/s | 25.6 GB/s | |
| QPI (7.2GT/s, 3.6 GHz) | 230.4 Gbit/s | 28.8 GB/s | 2012 |
| PCI Express 6.0 (×4 link) | 242 Gbit/s | 30.25 GB/s | 2022 |
| PCI Express 4.0 (×16 link) | 256 Gbit/s | 31.51 GB/s | 2018 |
| CAPI 2 | 256 Gbit/s | 31.51 GB/s | 2016 |
| QPI (8.0GT/s, 4.0 GHz) | 256.0 Gbit/s | 32.0 GB/s | 2012 |
| QPI (9.6GT/s, 4.8 GHz) | 307.2 Gbit/s | 38.4 GB/s | 2014 |
| HyperTransport 3.0 (2.6 GHz, 32-pair) | 332.8 Gbit/s | 41.6 GB/s | 2006 |
| HyperTransport 3.1 (3.2 GHz, 32-pair) | 409.6 Gbit/s | 51.2 GB/s | 2008 |
| CXL Specification 1.x (×16 link) | 512 Gbit/s | 63.02 GB/s | 2019 |
| PCI Express 5.0 (×16 link) | 512 Gbit/s | 63.02 GB/s | 2019 |
| NVLink 1.0 | 640 Gbit/s | 80 GB/s | 2016 |
| PCI Express 6.0 (×16 link) | 968 Gbit/s | 121 GB/s | 2022 |
| NVLink 2.0 | 1.2 Tbit/s | 150 GB/s | 2017 |
| Infinity Fabric (Max. theoretical) | 4.096 Tbit/s | 512 GB/s | 2017 |